survey of 'hills. pine plots northern region d. …

r

FORESTS DEPARTMENT OF WESTERN AUSTRAL IA

4

SURVEY OF 'HILLS. PINE PLOTS

NORTHERN REGION

D. LEJEUNE

SEPTEMBER 1984

SURVEY OF "HILLS" PINE PLOTS - NORTHERN REGION

D.R. LEJEUNE

1. INTRODUCTION

In the decade 1960-1970 the Forests Department commenced a programme aimed at replacement of part of the native forest with pines.

A circular letter from the Chief of Division Plantations 17/10/67 stated inter alia:

"The evaluation of a site for afforestation with pines in any area requires trial plots of key species grown to an age at which the pine growth may be assessed and the results correlated with factors of site. This takes time and it is vital that a programme of trial plot establishment to test all potential sites be implemented without delay". In fact, many plots were established prior to 1967 particularly in Mundaring Division.

This survey covers a total of 66 plots in Mundaring, Jarrahdale and Dwellingup Divisions. It becomes obvious that not all plots were established with the experimental objective in view. Some are at old settlements and some are to reforest dieback sites. The objective is not always clear.

In Dwellingup and Jarrahdale there are known to be areas of pine neither classed as plantations nor recorded as plots. These have not been covered in this survey. They will, in the near future, be recorded on plan.

Winter burning of plots has been practice for some years at Mundaring only. Where they have not been burned they are at serious risk when burning adjoining forest. They are a source of worry for staff and at times considerable time has been spent protecting them. This should not proceed indefinitely.

In the early years after planting, records were generally well kept. However, as interest waned in the prospect of replacing native hardwood with pines, silvicultural and fertiliser treatments tended to lapse. There was generally no follow up of fertiliser trials. The question arose in the minds of many: "What have we learned and what is the future of these plots into which so much expenditure and effort has gone?". That really underlines the purpose of this survey.

2. OBJECTIVES OF THIS SURVEY

2.1 To assemble the important information and observations for all plots in a number of copies of one document so it is readily available if at some time it is required. At present the records are one copy only in either registers or card systems with the inevitable risk of destruction.

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Furthermore, there are rarely measurements or comments on the potential of the site.

2.2 For each plot to nominate the grid reference so the plot can be relocated by stumps if necessary many years after it is removed.

2.3 To assess the condition of the plots.

2.4 On the basis of available facts and observations to reach some conclusions regarding the suitability of species to locations.

2.5 To recommend future action.

3. SURVEY METHOD

3.1 It was essentially a rapid field survey by the writer. Lack of time prevented anything better. However, with one observer it has the advantage that the subjective element has been reduced.

3.2 Where they existed (generally the case) establishment details are taken from the records.

3.3 Current stocking if not recorded is the writer's estimate.

3.4 Codominant height was measured by either 'staff hypsometer' or Hagameter.

3.5 To give a relative measure of height growth, '5 year height growth' is used, i.e. Total height x 5.

age The '5 year height intercept ' method would have been more accurate but as that is not possible with P. radiata, this measure was used. In most cases the plots are past the years of most vigorous height growth. Thus, '5 year height growth' would generally be less than '5 year height intercept'. This needs to be taken into account when considering potential of the site.

3.6 Soils have sometimes been described in the records and in the case of Mundaring some soil pits were dug and profiles described. Surface soils have been described either by the writer or from records if available.

3.7 Commercial Status

Utilisable volumes of chip, case and mill timber were estimated as a guide for future utilisation. These represent volume available if clear felled with 2 exceptions.

Total volume. 4847 m3 chip 5763 m3 case 13-20 cm 2373 m3 mill 20 cm +

Such volumes in toto are not insignificant as a resource.

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3.

4. SITE POTENTIAL

In none of the records is there any evidence of recultivation or scrub control and it must be assumed that none was undertaken. Many pinaster plots have 'Silviculture 70' treatment of cleaning from original stocking to 750/ha at approximately 8-11 years. P. pinaster regrowth from this has never been removed and we know this can reduce increment by about 17% on coastal sands. Fertiliser was normal at planting but rarely used later. This general lack of growth promotion is not normal for a plantation and therefore plots as seen now indicate something rather lower than their true potential.

Factors described including 5 year height growth, colour and needle length have been taken into consideration when describing site potential.

5. DESCRIPTION OF GROUND FUEL

This does not appear in this booklet but it was done in each case and passed to Divisions to provide a basis for a winter burning programme.

6. PLOT NUMBERS & LOCATION

Various methods have been used in the Divisions to name and number the plots. Sometimes the plot number in a register differs from that on current 1:50,000 plans. In such cases the latter is used in the Index. Most plots are shown on such plans. To avoid confusion each plot has been given a six figure grid reference. For ease of reference to the plans at the back of this booklet each plot has been serially numbered. This is the 'Index Plan Nu~ber'.

7. CONCLUSIONS

7.1 P. pinaster

If 14ft (4.27 m) is acceptable 5 year height intercept on the Swan Coastal Plain, considering the advanced age of some plots, the same figure for '5 year height growth' should give a reasonable guide to acceptability in "Hills".

Distance from market would require consideration.

The number and distribution of soil pits is insufficient to enable confident conclusions to be reached regarding soil depth required. The indications, however, are that at least 75 cm depth is required.

Lack of soil depth information often clouds conclusions regarding lack of health but reasonable assumptions can generally be made. P. pinaster is healthiest on the better soils on sites where water is readily available. However, it has shown that it can grow satisfactorily on all soils. It can tolerate a reasonable laterite influence but health deteriorates with an increasing proportion of gravel. Nowhere is it acceptable on pure Wandoo sites, presumably

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due to shallow clay. Reduced rainfall, progressing eastwards shows its influence but is not a limiting factor in the area concerned.

7.2 P. radiata

Many plots are over 20 years and with lack of subsequent fertiliser, a decline in height growth can be expected. However, for those under 20 years the 5 year height growth ranged between 20ft (6.1 m) and 30ft (9.15 m) for stands of acceptable to good health.

Soil depth - the same comments apply as with pinaster.

Soil type - with the exception of Qualen Road plot on yellow sand, the only acceptable stands are growing on sandy loams. Health decreases progressively with increasing lateritic influence.

In deciding whether or not radiata can be grown satisfactorily on a site, the dominant factor to consider should be whether it can be grown without serious sun scald. On a number of sites, although height growth is reasonable, the incidence of sun scald (a serious defect) is so high that they must be classed unacceptable. Obviously sun scald is associated with lack of health and this must be due primarily to lack of nutrients. This can possibly be corrected with fertiliser but at this stage of our knowledge the likely cost is frightening. Bear in mind we are discussing sites in the decreasing rainfall east of the Darling Scarp. The fact that rainfall is not the dominant factor influencing health is demonstrated by healthy pines at Cliffords Plantation with rainfall 550 mm.

Cliffords Plantation is of low quality, primarily due to poor stocking caused by early flooding. However, although variable in health probably due to shallow clay on a Wandoo site, there are quite acceptable stands free of serious sunscald.

7.3 General Conclusion

At some time in the future, consideration might be given, either in State Forest or private property, to establishing plantations east of the most fertile soils in the river valleys on the edge of the Darling Scarp. If this occurs in State Forest, a great deal of work would be required to ascertain the extent of sites proven to be satisfactory. This comment applies mainly to P. radiata.

All the satisfactory P. radiata plots are on soils close to water courses or on yellow sand.

The former are generally so narrow that current management practice could not accept them. The yellow sand type is marginally acceptable and confidence in soil depth would be required. The need for refertilising would also have to be accepted.

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8. RECOMMENDATIONS FOR FUTURE ACTION

8.1 As mentioned in the introduction, isolated pine plots are a protection problem which can be costly. It needs to be recognised that their potential having been assessed, their prime value has been realised.

8.2 No further silvicultural treatment is warranted except Yarrigal Form and Qualen Road Plots.

The latter is 8ha and fertiliser at regular intervals should produce a good stand. Certainly high pruning of any P. radiata should not be attempted.

It has done more harm than good by exposing the stem with resultant sun scald.

8.3 Plots generally would benefit from thinning - most for commercial sizes. However, with a few exceptions where this is noted, this would be uneconomic and only prolong the nuisance which the plots constitute.

8.4 A programme of winter burning at minimum cost has already commenced.

8.5 Utilisation is a problem. There are plantations in four Divisions with much higher priority for thinning and these will produce the full range of marketable products. Due to their small area, scattered and/or remote location, the large forwarders used by contractors will rarely be suitable for the job. On public roads they need to be transported and this is costly.

The best we can do is clear fell with few exceptions at an age and time when we can get maximum utilisation or value return. This means adopting an opportunist attitude. Examples -

(a) There are operations in the locality.

(b) Our contractor in plantations is unable to cope with demand. Use another contractor with suitable mobile equipment.

(c) Sell to mills in the locality.

8.6 When plots have been clear felled they should be replaced with hardwood species suited to the particular sites and protected until they can withstand fire.

Index Plan No .

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2

3

4

5

6

7

V 8

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10

11

12

13

14

15

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19

20

v 21

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24

25

26

27

28

MUNDARING_DIVISION

Plot Name

Brookton Hway

Darkin Rd Plot 1

Nockine Rd Plot 8

Beraking Pool Rd Plot 7

Nockine Rd Plot 3

Nockine Rd Plot 1 & 2

Nockine Rd Plot 5

Nockine Rd Plot 3

Nockine Rd Plot 1

Deefor Rd Plot

Dunlop Rd Plot

Yarra Rd Plot

Darkin Swamp Plot

Warrigal Rd Plot

Qualen Rd Plot

Crawler Rd Plot

Ashendon Rd Plot 1

Ashendon Rd Plot 2

Running Bk Rd Plot

Topher Rd Plot

Nockine Rd Plot

Surveyor Rd Plot

Patton Rd Plot 5

Darkin Rd Plots 10 & 11

Darkin Rd Plots 1, 2, 3

Darkin Rd Plot

Darkin Rd Plot

Kent Rd Plot 4

* R = radiata P = pinaster

4

9

4

4

Grid Ref. Sp *

BL/84/91 p

BF/89/01 p

AY/77/37 R) P)

AZ/77/99 II

AV/76/24 II

AT/75/85 II

AU/76/05 R

AV/76/30 R) P)

AW/76/55 II

AW/84/27 R

AU/83/64 p

AU/82/21 p

BB/88/14 p

AY/89/15 R

BC/79/85 R

AT/87/97 R

AW/69/45 p

BD/69/92 p

BG/82/01 p

AV/78/35 R

AV/76/22 R) P)

AV/76/73 R

AV/77/11 R

BA/81/26 R

BA/81/46 R -66

BA/82/65 R

BA/80/22 R

AS/88/49 Mixed

Area p Vol 3 m ha yr Chip Case Mill

1. 7 66 40 51

1.1 64 27 27

0.4 53 6 5

0.4 55 5 16

0.4 53 38 7

7.2 55 16 4

0.4 55 13 3

0.3 53 7 11

0.4 53& 30 40 55

8.0 74 80

9.0 68 225

2.4 68 120

0.2 64

8.0 73 160

8.0 74 460 20

8.0 72 400

1. 2 66 24 132 Approx

1. 2 II 20 90 15

3.3 54 50

0.5 58 32 32

0.4 53& 14 22 55

0.4 58 19 29

1. 3 58 25 144

0.4 58 65 65 EA.

0.9 58 114 96 EA.

0.4 66 20

0.4 58 51 9

8.0 71 400

TOTAL 2067 785 437

JARRAHDALE=DIVISION

Index Plot Name Grid Ref Sp Plan * No.

29 Chandler Plot BM/64/18 R 12/60

30 Gordon Plot 1/67 BP/63/59 p

31 Churchman Plot BJ/66/06 p

2/65

32 Brady Plot 1 BK/79/11 p Brookton Hway

33 Watershed Rd Plot BL/82/61 p

34 Schulstaad Rd Plot 2

35 Leona Plot 3

36 Flint Plot 1

37 Leona Plot 1

38 Geddes Plot 2

39 Geddes Plot 1/65

40 Gibbs Plot 2

41 Bannister Plot

42 Wearne Plot 1

43 Lesley 2/65 Brookton Hway

44 Cobiac 2/67 Jarrahdale Rd

45 Ashendon 1/67 Kinsella Rd

* P - pinaster R - radiata

1

BQ/82/79 p

BP/80/62 p

BR/85/45 p

BT/81/22 p

BW/84/25 p

BX/83/13 p

BY/85/14 p

CA/87/31 p

CA/89/08 p

BH/72/58 p

BR/67/81 p

BK/69/91 p

Area p Vol 3 m ha yr Chip Case Mill

2 60 140 140 420

6 67 240 174

2 65 60 120

1. 2 66 60 80

1.7 67 68 25

1. 7 67 94

1.3 67 71

0.7 65 32 12

1. 7 65 40 90

1.6 66 64

1.4 65 56 84

1.6 65 144

0.8 65 24 24

0.8 65 32

1. 4 65 42 29

3.5 67 70 59

1.0 67 30

TOTAL 1267 837 420

DWELLINGUP=DIVISION

Index Plot Name Plan No.

46 Park Plot 1

47 Wells Plot 3

48 Wells Plot 4

49 Sect 4 Kennedy

50 Del Park Rd

51 Scott Plot 2 NE Rd

52 Cameron Plot 1/68 NE Rd

53 O'Neill 1/68 NE Rd

54 Urbrae Plot 1 Huntley H.Q.

55 Turner Plot 2A Torrens Rd

56 Del Park Rd

57 Bombala Plot 1

58 Wuraming Cpt 1

59 Hedges Plot 1

60 Yarrigal Form Plot 1







* P - pinaster R - radiata

Grid Ref Sp *

CY/65/31 R

CR/76/23 R) P)

CR/76/32 R) P)

CQ/75/47 R

CS/61/97 p

CN/68/92 p

CK/71/93 p

CH/74/28 p

CL/62/94 R

CM/60/04 p

CM/59/89 p

DA/75/86 R

DJ/76/99 R

CZ/75/96 R

DA/68/44 R

DA/68/62 R

DA/68/81 R

DA/69/11 R

DB/69/49 R

DB/69/58 R

DB/69/77 R

Area p Vol 3 m ha yr

Chip Case Mil J

1.0 68 16 155 16

0.9 65 70

2.9 65 190 30

4.0 61 640 160

1.0 60 30 60

1.0 68 20 79

1.3 68 21 97

1.1 68 70

2.9 61 10 190

4.6 67 161

7.6 67 225

7.5 62 1200 490

7.8 62 1310 560

4.2 60 500 100

2.02 75 80

2.02 75 70

2.02 72 180

2.02 75 60

2.02 75 70

2.02 75 70

2.02 72 180

TOTAL 1513 4141 1516

Index Plan No. 1

BROOKTON HIGHWAY PLOT l BL/84/91

Species: P. pinaster

Original vegetation: Jarrah-Wandoo

Age: P66 (17 years)

Area: 1.7 ha

Stocking: 750/ha

Codom height: 17m. Five year height growth Sm (16.4 ft)

Silviculture: Generally good health. Vigour and form falls

away apparently over shallow clay. 60gm super at planting.

Low pruned with cleaning regrowth.

Soil: Grey-yellow sand with some clay.

Commercial status: 30m3 case and 40m3 chip/ha. Case will be

increased considerably in say 4 years with more stems qualifying.

Site potential: High away from Wandoo.

Index Plan No. 2

DARKIN ROAD PLOT 1 BF/89/01


Original vegetation: Jarrah

P64 (19 years)

1.1 ha

Stocking: 500/ha

Codom height: yellow sand 17m

white sand 15m

5 year height growth 4.5m (14.7 ft) and 3.9m (12.9 ft)

respectively.

Silviculture: No record of fertilising. Fairly healthy but

would benefit from fertiliser after thinning. Low pruned and

cleared to 500. Scrub competition nil.

Part yellow and part white sand.

Commercial status: 25m3 chip and 25m3 case/ha and needs

thinning.

Site potential: Quite acceptable assuming plot has had little

or no fertiliser.

Index Plan No. 3

NOCKINE ROAD PLOT 8 (PLOT 10 IN REGISTER) AY/77 / 37

Species: P. radiata and pinaster

Original vegetation: Wandoo, Marri, Blackbutt

Age: P53 (30 years)

Area: 0.4 ha

Codom height: 16m. 5 year height growth 2.65m (8.7 ft)

Stocking: Mean 800/ha - some cleaned, some not.

Silviculture: Low pruned, very poor health particularly

P. radiata despite 60gm super and 60gm zinc super/tree 1957.

Soil: Pit described in Register.

0 - 3" gravelly Y.L.S. medium gravel

3 - 36" B.Y.S.L.

36 - 42" red and yellow mottled clay

P 2o5 140 P.P.M.

Commercial status: Approximately Sm3 case, 6m3 chip.

Site potential: Unsuitable for either species.

Index Plan No. 4

PLOT 7 BERAKING POOL ROAD (NOCKINE ROAD PLOT 12 IN REGISTER)

AZ/77/99

Species: P. radiata and pinaster


P55 (28 years)

0.4 ha

Stocking: pinaster 350/ha

Codom height: pinaster 24m. 5 year height growth 4.3m (14 ft)

Silviculture: radiata hopeless, poor health and sun scald -

chip and case size only.

pinaster - good health, all low pruned. Trials

with fertiliser but no conclusions.

Soils: Sand to 50cm - details of profile in Register.

Commercial status:

Site potential:

16m3 case pinaster

5m3 chip radiata

pinaster - fair

radiata - unsuitable

Index Plan No. 5

NOCKINE ROAD PLOT 3 (PLOT 4 IN REGISTER) AV/76/24

Species: ½ radiata, ½ pinaster

Original vegetation: Jarrah-Wandoo

Area: 0.4 ha

Age: P53 (30 years)

Stocking: 150/ha

Codom height: pinaster 22m. 5 year height growth 3.6m (12 ft)

Silviculture: 60gm super/tree in 1956. Various fertiliser trials

(see Register). No apparent comments on results and it appears

there was little or no improvement. Low pruned. P. radiata sun

scalded and unhealthy, pinaster healthy but slow height growth.

Soil: Profile in Register. Typical laterite gravel with red

and white clay at 0.6m.

Commercial status: 45 m3/ha - 15% mill, 85% case. Should clear

fell as soon as convenient.

Site potential: Poor for radiata, marginal for pinaster.

Index Plan No. 6

NOCKINE ROAD PLOTS 1 & 2 (REGISTER PLOTS 1 & 2) AT/75/85

Species: Mixed. P. radiata and pinaster

Original vegetation: Wandoo

Age: P53 and 55 (28 and 30 yrs at 1983)

Area: each plot 0.4 ha

Stocking: each plot approximately 200/ha

Codom height: radiata 24m. 5 yr height growth 4m (13 ft)

pinaster 22m. 5 yr height growth 3.7m (12ft)

Silviculture: Fair health only. No response to various early

fertilizing (Van Noort 1957). Low pruned.

Soil: Details in Register - heavy gravel over clay at 40cm.

Commercial status: 50m3/ha with 20% mill and 80% case.

Site potential: Not acceptable. No value in retaining. Clear

fell at earliest opportunity. Wandoo regrowth throughout.

Index Plan No. 7

NOCKINE ROAD PLOT 5 (PLOT 3 IN REGISTER) AU/76/05

Species: P. radiata with odd pinaster

Original vegetation: Wandoo and Blackbutt

Age: P55 (28 years) - Small part of Plot P53

Area: 0.4 ha

Stocking: 150/ha. Height variable to 22m.

Codom height: radiata 22m. 5 year height growth 3.9m (12.9 ft)

Silviculture: Fair health only. Early application of various

fertilisers. No comments on response. Low pruned.

Soil: Details in Register. Basic with gravelly sandy loam

over clay at 47cm. P 2o5 340 P.P.M.

Commercial status: 40 m3/ha 20% mill and 80% case

Site potential: Not acceptable. No value in retaining. Clear

fell at earliest opportunity. Wandoo regrowth throughout.

Index Plan No. 8

NOCKINE ROAD PLOT 3 (PLOT 6 IN REGISTER) AV/76/30

Species: 85% radiata, 15% pinaster

Original vegetation: Wandoo-Blackbutt-Marri

Age: P53 (30 years)

Area: 0.3 ha

Stocking: Thinned 1973 to 200/ha for case and chip.

Codom height: radiata 23m. 5 year height growth 3.8m (12.6 ft)

Silviculture: Low pruned. Both species fair health. Range of

early fertilisers - no comments. Regrowth of hardwoods in plot.

Soil: Details in Register. Loamy sand with buckshot gravel to

Commercial status: 3 60m /ha. 60% mill, 40% case.

Site potential: Marginal only. Plot straddles a creek and

is therefore not representative of a larger area.

Index Plan No . 9

NOCKINE ROAD PLOT 1 (PLOTS 7 & 8 IN REGISTER CLOSE TOGETHER)

AW/76/55

Species: radiata and pinaster

Original vegetation: Jarrah-Marri

Age: P53 & 55

Area: 0.7 ha

Silviculture: Low pruned. radiata failed, pinaster poor.

Soil: Heavy gravel. P2o5 250 and 270 P.P.M.

Commercial status: 40m3 case, 30m3 chip pinaster.

Site potential: Unsuitable for either species.

Index Plan No . 10

DEEFOR ROAD PLOT (SEE REGISTER) AW/84/27

Species: radiata

Original vegetation: Jarrah & Marri

Age: P74 (9 years)

Area: 8 ha

Stocking: 750/ha

Silviculture: 120gm super mixture A at planting and in 1978

240gm copper super zinc on 750/ha. Fair health but sample

counts show 30% of stems have sun scald.

Codom height: Variable 5-13m average about Sm. 5 year

height growth 4.4m (14.6 ft).

Soil: yellow sand

Commercial status: Defer utilising until valuable sizes

available and then if economically feasible clear fell.

10m3/ha chip.

Site potential: Due to slow growth rate and incidence of sun

scald, the site must be classed as unsuitable for radiata.

Index Plan No. 11

DUNLOP ROAD PLOT (IN REGISTER) AU/83/64

Species: Mainly pinaster with trial plots of halepensis,

radiata, elliottii, taeda brutia, ponderosa and canariensis.

Original vegetation: Jarrah, Marri, Wandoo.

Age: P68 ( 15 years)

Area: 9.0 ha total

Stocking: pinaster cleaned to 750

Codom height: pinaster 14-17m. '

5 year height intercept

15-17 ft and the best compares with good yellow sand pinaster

at Yanchep.

Silviculture: All low pruned except runts. P. canariensis is

satisfactory but not as a commercial proposition. P. ponderosa

is a failure. P. halepensis is the usual variable slow starter

and will probably improve. 60gm copper, super, zinc at planting.

1971 subsequent trial plots in pinaster - see Register.

Soil: Varies from white sand to massive laterite and even on

the latter pinaster is fair.

Commercial status: pinaster could warrant a chip thinning in

parts now. However, an operation if feasible should be deferred

for some years and then clear fell for more valuable products.

25m3/ha chip.

Site potential: Satisfactory for pinaster if pine plantations

are ever required in this locality.

Index Plan No. 12

YARRA ROAD PLOT AU/82/21

Species: pinaster


Age: P68 (15 years)

Area: 2.4 ha

Stocking: 750/ha

Codom height: 15m. 5 year height intercept 15 ft.

Silviculture: Low pruned and recleaned. No subsequent

fertiliser. Healthy but not up to average P68 at Yanchep on

yellow sand. 60gm copper, super, zinc at planting. No )

subsequent fertiliser.

Soil: yellow sand

Commercial status: Not quite ready for chip thinning. Propose

to leave until all trees are case or mill size and then clearfell.

Total volume 50m3/ha chip.

Site potential: Satisfactory if pine plantations are ever

required in the locality.

Index Plan No. 13

DARKIN SWAMP PLOT BB/88/14

Species: pinaster

Original vegetation: Swamp - ti tree, Actinostrobus

Age: P64 (19 years')

Area: 0.2 ha now

Stocking: Unthinned, approx. 1500/ha.

Codom height: 12m. 5 year height growth 3.lm (10.3 ft)

Silviculture: Fair health but poor form and height growth

due to wet site and clay. No fertiliser at planting but 0.2T/ha

super in 1966.

Soil: Described previously as white sand over gravel and clay

at shallow depth.

Commercial status: Some trees of case log size but the small

volume is too remote to harvest.

Site Potential: Site must be regarded as unsatisfactory.

It would have been better if mound plowed and maintained free

from scrub competition. Special efforts should not be made to

protect the plot.

Index Plan No. 14

WARRIGAL ROAD PLOT AY/89/15

Species: radiata

Original vegetation: Jarrah & Marri

Age: P73 (10 years)

Area: 8 ha

Stocking: 750/ha low pruned

Codom height: 9m. 5 year height growth 4.Sm (14.8 ft)

Silviculture: 120gm super A at planting. 120gm fertiliser

(type not stated) 1976. Healthy over whole plot but sample

counts show 60% of trees with sun scald almost invariably in

the pruned zone. No high pruning should be done and is not

warranted.

Soil: White sand with patches of yellow.

Commercial status: Any thinning not possible at present.

It should be delayed as long as possible to reduce further sun

scald. 20m3/ha chip.

Site potential: Although heavy fertiliser treatment with super

and zinc could reduce sun scald on this site, the cost for the

low growth rate is not warranted. Site unsuitable for radiata.

Index Plan No. 15

QUALEN ROAD PLOT BC/79/85

Species: P. radiata


Age: P74 (9 years)

Area: 8. 0 ha

Stocking: Planted 1630/ha. 1980 cleaned to 750.

Codom height: 8.2m on gravel - 10m - 16m on best site.

5 year height growth 8.9m (29 ft) on best site.

Silviculture: 120gm/tree super mix A at planting. 1981

refertilised presumably with super at 0.4T/ha. 250/ha high pruned

overall and on approximately 2ha 750 done. Some sun scald on W

& N sides of plot. Inside approximately 5% scalded on pruned

zone. On best section scald is negligible. All trees are low

pruned. Form and health good but should continue to fertilise

to test if this will prevent further sun scald.

Soil: grey-white sand overlying yellow in SW corner. NE

corner heavy gravel.

Commercial status: Some trees have reached case size. Total

volume of chip 60m3/ha.

Site potential: Away from gravel potential is very satisfactory

but obviously a fertiliser regime at least as heavy as that used

here would be required. Low pruning should be deferred till

canopy closed and high pruning preferably not done. This is one

plot worth retaining to increase its value.

CRAWLER ROAD PLOT 3

Species: P. radiata

Original vegetation: Jarrah, Marri.

P72 (11 years)

8 ha

Stocking: 750/ha

Codom height:

6.lm (20.1 ft)

13-14m and fairly even.

Index Plan No. 16

AT/87/97

5 year height growth

Silviculture: Copper, super, zinc at planting, quantity not

specified. 1974 trials with copper, super, zinc low levels

60-120 gm/tree on south side of Crawler Road show no improvement.

All low pruned. Crowns now fairly healthy but counts indicate

60% of stems have sun scald.

Soil: white sand with pockets of yellow.

Commercial status: Defer operations until sizes in demand are

available and then if economically feasible clearfell. 50m3/ha

chip.

Site potential: Due to slow growth rate and incidence of sun

scald the site must be classed as unsuitable for radiata.

Index Plan No. 17

RESERVOIR BLOCK PLOT 1 ASHENDON ROAD AW/69/45


Original vegetation: Jarrah-Marri high quality

Area: 1.2 ha

Age: About 17 years (no records)

Stocking: 750/ha - all low pruned, fair pine regrowth.

Codom height:

Silviculture:

very good.

19m. 5 year height growth 5.5m (18.2 ft)

Form only fair due to wet site but vigour

Soil: White sand probably overlying grey loamy sand and clay.

Cormnercial status: 95% of trees yield case and a little mill.

Could be clear felled to advantage, 20m3 chip and 110m3 case/ha.

Site potential: Good for pinaster with mounding. A grave yard

site restocked with Marri.

Index Plan No. 18

ASHENDON ROAD PLOT 2 BD/69/92


Original vegetation:

restocked with Marri.

Area: 1.2 ha

Jarrah - high quality grave yard dieback

Age: About 17 years (no records)


Stocking: 750/ha plus regrowth from cleaning.

Silviculture: Low pruned, very healthy and good growth.

Form only fair due to damp site. Fertiliser history unknown.

Soil: Brown sandy loam probably over fairly shallow clay.

Commercial status: 95% of trees yield case and a little mill.

Could clear fell to advantage. Total volume 90 m3 case, 20m3

chip, 15m3 mill.

Site potential:

near creek.

Good for pinaster with mounding as is wet site

Index Plan No. 19

RUNNING BROOK ROAD PLOT ( IN REGISTER) BG/82/01


Original vegetation: Wandoo surrounds and was on plot

Aqe: P54 (29 yrs)

Area: 3.3 ha

Stocking: Planted 3000/ha and remains that way except

failure in patches.

Codom height:

(8.5 ft)

10m - 15m. Five year height growth best 2.6m

Silviculture: No fertiliser recorded.

1. Deaths common on wet portion

2. Generally, vigour quite good

1977 inspection noted:

1958 inspection noted:

Plot in very poor condition. Large area stunted and small in

girth.

Has been partially low pruned.

Soil: Two types - grey loamy sand and brown clay sand. Some

overlies coffee rock.

Commercial status: A few case size trees but only a chip

proposition for clear felling at 15m3/ha. Most trees have not

reached chip size.

Site potential:

site.

Plot is a failure as to be expected on a Wandoo

Index Plan No. 20

TOPHER ROAD PLOT 6 (REGISTER PLOT 34) AV/78/35

Species: radiata

Original vegetation: Wandoo - Blackbutt - Marri.

Age: P58 (25 years)

Area: 0.5 ha

Codom height: 30m. 5 year height growth 6m (19.7 ft)

Stocking: 1973 thinned to 300/ha for case and chip.

Silviculture: Good growth quite healthy. Low pruned. No

fertiliser except trial strips with no conclusions.

Soil: Surface grey - brown sandy loam near Nockine Brook -

basic rock. For detail see Register Plot 34 1958 series.

Commercial status: 3 130m /ha. 50% mill, 50% case.

Site potential: Satisfactory for radiata but probably a

narrow belt along brook. Some regeneration in plot. Clear fell

at earliest opportunity.

NOCKINE ROAD PLOT 4 (REGISTER PLOT 5)

- ACTUALLY ON SURVEYOR ROAD

Index Plan No.21

AV/76/22

Species: P. radiata and P. pinaster each half plot.

Original vegetation: Jarrah, Blackbutt, Marri.

Area: 0.4 ha

Age: P53 and 55 (28 and 30 years in 1983)

Stocking: Has been thinned to 200/ha.

Codom height: 26m radiata. 5 yr height growth 4.3m (14.2 ft)

18m pinaster. 5 yr height growth 3.0m (9.8 ft)

Silviculture: Low pruned and both species reasonably healthy.

Radiata had 60gm /tree copper zinc super 1957. Pinaster had

60gm super and ammonium sulphate plus Byfields loam.

Commercial status: 90m3/ha. 60% mill, 40% case.

Soil: Brown loamy sand with buckshot gravel to 60cm. Yellow

brown loamy sand to 1.3m.

Site potential: Height growth is not satisfactory for either

species although health is reasonable. A marginal site which

does not appear to be representative of a large area.

Index Plan No. 22

SURVEYOR ROAD PLOT 4 (REGISTER PLOT 19A & B) AV/76/73

Species: P. radiata

Original vegetation: Wandoo, Blackbutt.

Area: 0.4 ha

Age: P58 (25 yrs)

Stocking: Thinned for case and chip 1973 to 300/ha.

Codom height: 26m. 5 year height growth 5.2m (17 ft).

Silviculture: Early trial strips of fertilisers with no

conclusions. Low pruned. High ground quite healthy, low

ground failed presumably due to shallow clay.

Soil: Reddish brown sandy loam with red clay loam at 15cm.

Commercial status: 3 120 m /ha. 60% mill, 20% case.

Site potential: Where plot has grown normally, growth is

fair considering lack of fertiliser.

INDEX PLAN NO. 23

PATTON ROAD PLOT 5 AV/77/11

(IN REGISTER 1958 SERIES PLOT 20)

Species: radiata

Original vegetation: Blackbutt & Wandoo

Age: P58 (25 yrs)

Area: 1.3 ha

Stocking: Thinned for chip and case to 250/ha. 1973.

Codom height: 30m. 5 year height growth 5.lm.

Silviculture: Low pruned, good growth and quite health~.

No fertiliser except trial strips with results not documented.

Soil: Sandy loam near creek. Basic rock. Detailed profile

in register.

Commercial status: 130m3/ha, 85% mill 15% case.

Site potential: Original Blackbutt and Wandoo regenerating

in plot. Site is satisfactory but probably represents a narrow

belt along creek. Clear fell at opportune time.

Index Plan No. 24

DARKIN ROAD PLOTS 10 & 11 BA/81/26

(REGISTER PLOTS 24 & 23 RESPECTIVELY 1958 SERIES)

Species: radiata

Original vegetation: Wandoo and Blackbutt

Area: Each 0.4 ha

Age: P58 (25 yrs at 1983)

Fertiliser: Nil except unmonitored strips.

Stocking: 350/ha

Silviculture: Fair health but 30% of trees sun scalded on

NW face. Low pruned.


Soil: Brown sandy loam to 35cm. Thereafter yellow and red

mottled clay, within 100m of Darkin Road. Country rock acid

granite.

Commercial status: 3 Each plot 65m. 50% case and 50% mill.

Site potential: Due to sun scald and despite the fact that this

site near the river must be the best available, it must be classed

as unsatisfactory. If adequate fertiliser had been applied, sun

scald may have been eliminated.

Index Plan No. 25

DARKIN ROAD PLOTS 1, 2 & 3 BA/81/46-66

(REGISTER PLOTS 25, 26 & 27 1958 SERIES)

As for Darkin Road Plots 10 & 11 except:

(1) Being further from river, a slight drop in height

and quality.

(2) 3 Volume available all three plots 120m - 20% mill,

80% case.

(3) Original vegetation Wandoo with occassional Blackbutt.

(4) Sandy loam over clay varying 15-60cm.

Index Plan No. 26

DARKIN ROAD PLOT 4 (REGISTER PLOT 29 1958 SERIES) BA/82/65

Species: P. radiata


Age: P60 23 yrs (at 1983)

Area: 0 . 4 ha

Stocking: 700 / ha

Codom height: 18m. 5 yr height growth 3.9 m (12.8 ft)

Silviculture: No fertiliser. Poor health and much sun scald.

Low pruned.

Soil: Grey brown sandy loam to 10cm. Hard packed light brown

sandy loam to 35cm. Yellow brown sandy clay loam to 75cm.

Thereafter gritty clay.

Commerical status: Low - only chip 20m3 , probably not worth

salvaging.

Site potential: Definitely unsuitable.

Index Plan No. 27

DARKIN ROAD PLOT 9 (REGISTER PLOT 22 1958 SERIES) BA/80/22

Species: P. radiata

Original vegetation: Wandoo & Jarrah

Age: P58 25 years (at 1983)

Area: 0.4 ha

Stocking: 350/ha

Codom height: 30m. 5 yr height growth 6m (19.7 ft)

Silviculture: Fertiliser nil except unmonitored trial rows.

Fair health. 15% of trees show sun scald - less than any other

radiata plots on Darkin Road.

Soil: Brown loamy sand to 55cm then yellow brown sand to at

least 85cm.

Commercial status: 60m3 - 15% mill, 85% case.

Site potential: Being immediately beside river this is a

tolerable radiata site but it is obviously not representative

of a large area and therefore radiata cannot be recommended in

the locality.

Index Plan No. 28

KENT ROAD PLOT 4 AS/88/49

Species: 45% of plot is P. pinaster alternating in strips

with elliottii and radiata.

Original vegetation: Wandoo-Jarrah

Area: 8 ha

Age: P71 (12 yrs)

Codom height: P. radiata 12-14m. Best 5 yr height growth

5.8m (19.1 ft). P. pinaster llm. 5 yr height growth and 5

yr height intercept both 4.58m (15 ft).

Stocking: 750/ha

Silviculture: 60gm super copper zinc at planting and in 1974

seven trial strips of different levels of the same fertiliser.

No follow up of results. All low pruned. P. elliottii is very

poor, radiata is poor to fair but 35% of trees are sun scalded

and more in poor sections. P. pinaster is quite healthy.

Soil: Generally white sand but some gravelly yellow sand.

Commercial status: Not yet ready for utilisation but should

be clear felled when opportune. 50m3/ha chip.

Site potential: Unsatisfactory for radiata and elliottii but

satisfactory for pinaster if Wandoo sites avoided.

Index Plan No. 29

CHANDLER PLOT 12/60 BM/64/18

Species: P. radiata

Original vegetation: High quality Blackbutt-Marri.

Age: P60 (23 yrs)

Area: 2 ha

Stocking: 500/ha

Codom height: 29m. Five year height growth 6.3m (20.7 ft)

Silviculture: Fertiliser history not recorded. Low pruned

and cleaned to 500/ha. High quality stand, badly needs thinning

but still healthy. Form good.

Soil: Apparently deep brown sandy loam.

Commercial status:

20% chip.

Site potential:

3 350m /ha estimated 60% mill, 20% case,

Very high.

Index Plan No. 30

GORDON PLOT 1/67 BP/63/59



Age: P67 (16 yrs)

Area: 6 ha

Stocking: Approx. 83% of area cleaned to 750/ha. Remainder

on low ground 2000/ha.

Codom height: 16m. Five year height growth Sm (16.4 ft).

Silviculture: 120gm 10% zinc super at planting. All healthy

and 83% low pruned and that area satisfactory form. Whole area

very healthy. Low area poor form 250/ha low pruned and

uncleaned.

Soil: On 83% of area gravelly sandy clay over laterite.

Remainder on low ground clay.

Commercial status: 29rn3/ha case and 40m3 chip. Any operation

except chip not feasible at present. Defer say 5 yrs and clear

fell for case and chip.

Site potential:

factory.

High ground satisfactory, low ground unsatis-

Index Plan No. 31

CHURCHMAN PLOT 2/65 BJ/66/06



Age: P65 (18 yrs)

Area: 2 ha

Stocking: Varies 500-800/ha

Codom height: Varies 14-17m. Five year height growth 3.9m

(12.7ft) - 4.7m (15.5 ft)

Silviculture: 60gm super at planting. Mostly low pruned.

Healthy but form variable with site.

Soil: Grey loamy sand, apparently shallow in parts over

clay. Fairly damp site.

Commercial status: 30m3 case and 60m3 chip/ha. Best to

clear fell in at least 5 yrs hence to maximise case.

Site potential: Low due to shallow soil.

INDEX PLAN NO. 32

BRADY PLOT 1 BROOKTON HIGHWAY BK/79/11


Original vegetation: Jarrah and Marri.

Age: P66 ( 1 7 yrs)

Codorn height: Varies 15-21rn. Five year height growth

4.4m (14.4 ft) - 6m (19. 7 ft).

Soil: Best near creek. Surface grey sandy loam probably

over clay.

Area: 1.6 ha

Silviculture: 60grn super at planting. Generally healthy

but form only fair. Low pruned.

Stocking: 750/ha plus cleaning regrowth.

Commercial status: About 70% of trees have case logs.

50rn3/ha. Clear fell preferably after 1988 to allow more

complete utilisation.

Site potential: Site deteriorates rapidly rising from creek

to heavy gravel. Lower ground is satisfactory but such would

only be narrow strips along creeks.

Index Plan No. 33

WATERSHED ROAD PLOT BL/82/61

Species: P. pinaster and 6 rows radiata


Age: P67 (16 yrs)

Area: 1.7 ha

Stocking: 750/ha

Codom height:

(14.3ft).

14m pinaster. Five year height growth 4.35m

Siiviculture: Low pruned with regrowth from cleaning. Fair

health but appears to need fertiliser. P. radiata - slow

growth and bad sun scald - a failure. At planting 60gm 10%

zinc super per tree.

Soil: Yellow sand.

Commercial status: 15m3/ha case size but really too early

to harvest for case. 40m3/ha chip.

Site potential: Satisfactory for pinaster, not for radiata

with treatment as in plot.

Index Plan No. 34

SCHULSTAAD ROAD PLOT 2 BQ/82/79



Age: P67 (16 yrs)

Area: 1.7 ha

Stocking: 750 plus regrown culls totalling about 1600/ha.


Silviculture: 120 gm zinc super per tree at planting.

Partially low pruned. Cleaned to 750 but not recleaned and

high proportion of regrowth makes it heavily stocked. Healthy

and form good.

Soil: Yellow sand apparently to depth.

Commercial status: Scattered case sizes but only a chip

proposition totalling 55m3/ha. Could be clear felled for

chip. Growth will be slow.

Site potential: If stand had been recleaned, volume would

have been quite good with a satisfactory potential.

Index Plan No. 35

LEONA PLOT 3 BP/80/62



Age: P67 (16 yrs)

1.3 ha

Stocking: 750/ha plus regrown culls totalling about 1200.

Codom height: 16m. Five year height growth 5m (16.4 ft).

Silviculture: 120gm zinc super per tree at planting.

Form good and healthy. Partially low pruned. Needs thinning.

Removal of scrub would have improved growth.

Soil: Coarse yellow sand apparently to depth.

Commercial status: Scattered case sizes. 55m3/ha chip.

Site potential: Quite good. Plot very similar to BQ/82/79

of same age on same soil.

Index Plan No. 36

FLINT PLOT 1 BR/85/45



Age: P65 (18 yrs)

Area: 0.73 ha (records incorrect)

Stocking: 750/ha plus some regrowth from cleaning.

Codom height: 17m. Five year height growth 4.7m (15.4 ft).

Silviculture: 60gm super per tree at planting. Form good

and health fairly good - would benefit by thinning and

fertilising. All low pruned.

Soil: Yellow sand apparently to depth.

Commercial status: For clear felling case would not be

feasible without recovery of chip. Total chip and case

60m3 /ha.

Site potential: Stand would have been better without scrub

competition. Site satisfactory.

Index Plan No. 37

LEONA PLOT 1 BT/81/22


Original vegetation: Jarrah on high ground with Blackbutt,

Jarrah and Paper bark beside creek.

Age: P65 (18 yrs)

Area: 1.7 ha

Stocking: 750/ha with some regrowth from cleaning.

Codom height: 12m on wet site to 19m on high ground.

Five year height growth 3.3m (10.8 ft) - 5.25m (17.2 ft)

Silviculture: 60gm super/tree at planting. 20% of plot is

in a wet site where growth is unsatisfactory. Remainder is

healthy with good height and volume growth. Badly needs

thinning.

Soil: White sand.

Commercial status: 90m3 case and 40m3 chip.

Site potential: High ground is good but being beside creek

the area available must be very suspect.

Index Plan No. 38

GEDDES PLOT 2 BW/84/25

Species: P. pinaster.


Age: P66 (17 yrs)

Area: 1.6 ha

Stocking: 750 plus fair amount of regrowth from cleaning.

Codom height: 15m = 0.88 m/yr. Five year height growth

4.4m (14.4 ft).

Silviculture: 60gm super/tree at planting. Colour indicates

needs fertiliser. Recultivation and recleaning would have

improved growth. All low pruned. Needs thinning.

Soil: Yellow sand on high site.

Commercial status:

chip.

Site potential:

Only scattered case trees. Yield 40m3/ha

A little better than marginal but would

improve with correct treatment.

Index Plan No. 39

GEDDES PLOT 1/65 BX/83/13


Original vegetation: Healthy Jarrah

P65 (18 yrs)

Area: 1.4 ha

Stocking: 700/ha with only minor regrowth from cleaning.

Codom height: 20m. Five year height growth 5.5m (18 ft)

Silviculture: 60gm super at planting. Healthy stand of

good form. Low pruned.

Loamy sand.

Commercial status: 60m3/ha case and 40m3 chip.

Site potential:· Site is on slope and edge is by a creek.

High potential and does not decreasG upslope. However,

area available probably limited.

Index Plan No. 40

GIBBS PLOT 2 BY/85/14



Age: P65 (18 yrs)

Area: 1.6 ha

Stocking:

2000/ha.

As planted less a few planting deaths about

Five year height growth 4. 7m ( 15. 4 ft)

Codom height: 17m and fairly uniform.

Silviculture: 60gm/super per tree at planting. No pruning

or cleaning. Colour only fair. Would have been a much

better stand with recultivation and cleaning. Badly needs

thinning. Form very good.

Soil: Yellow brown loamy sand.

Commercial status: Only chip or small rounds available.

90m3/ha.

Site potential: Growth was much better than the mean in

early years. With proper treatment site is acceptable.

Index Plan No. 41

BANNISTER PLOT 1 CA/87/31


Original vegetation: Poor Blackbutt and Marri

Age: P65 (18 yrs)

Area: 0.8 ha

Stocking: 750/ha with very little cleaning regrowth.

Codom height: On high ground 18m. Five year height growth

Sm (16.4 ft). On low ground very variable to 18m.

Silviculture: All pruned. Healthy. 25% of plot on low

ground where form is poor and height variable.

Soil: White sand apparently with depth.

Commercial status: 30m3/ha of each case and chip.

Site potential: Good away from creek.

Index Plan No. 42

WEARNE PLOT 1 CA/89/08



Age: P65 (18 yrs)

Area: 0.8 ha (record incorrect)

Stocking: 750/ha plus some regrowth from cleaning

Codom height:

4.4m (14.4 ft)

Variable 5-16m. Best five year height growth

Silviculture: 60gm super/tree at planting. Better trees low

pruned. A most variable stand with the best, acceptable growth

and the poorest failed. Form is poor.

Soil: Varies from brown gravelly sandy clay loam to white

sandy clay loam. Presumably, quality of stand dictated by depth

to clay.

Commercial status: 40m3/ha mainly chip.

Site potential: Unsatisfactory as can be expected on a Wandoo

site. In such a remote locality no effort should be made to

protect this poor stand.

Index Plan No. 43

LESLEY 2/65 BROOKTON HIGHWAY BH/72/58



Age: P65 (18 yrs)

Area: 1.4 ha


Stocking: 750/ha plus cleaning regrowth

Silviculture: Good growth but form only fair probably due

to clay and wet site. No record of fertiliser. Low pruned,

healthy.

Soil: Grey - brown loamy sand.

Commercial status: 2lm3/ha case and 30m3/ha chip.

Site potential: Fair for pinaster if mounded. Not a typical

site on low ground.

Index Plan No. 44

COBIAC 2/67 JARRAHDALE ROAD BR/67/81



Age: P67 (16 yrs)

Area: 3.5 ha

Stocking: Generally cleaned to 750 with some pine regrowth.


Silviculture: 120gm zinc super at planting. 80% of plot low

pruned but not all the 750. Surprisingly healthy for the slow

growth rate. Form good.

Soil: Yellow brown loamy sand with buckshot gravel. Sections

show evidence of clay. Gravel pit adjoins at head of a dieback

gully.

Commercial status: 20m3 chip and 17m3 case/ha

Site potential: Only marginal.

Index Plan No. 45

ASHENDON 1/67 KINSELLA ROAD BK/69/91



Age: P67 (16 yrs)

Area: 1.0 ha

Stocking: At original 1800/ha less a few planting deaths.

Codom height: Varies 10m on E side to 16m on W. Five year

height growth 3.lm (10.2 ft) - 5m (16.4 ft).

Silviculture: 120 gm/tree zinc super at planting. Form fair.

Health varies from poor to good for no obvious reason. No

pruning.

Soil: White sand. Variable vigour suggests rock or clay at

shallow depth in most of it.

Commercial status: A few case trees but only chip operation

possible and in parts not possible. 30m3/ha chip.

Site potential: Unsatisfactory.

Index Plan No. 46

PARK PLOT 1 CY/65/31

Species: P. radiata

Original vegetation: Jarrah-Blackbutt-Marri good quality.

Age: P68 (15 yrs)

Area: 1.0 ha

Stocking: 625/ha

Codom height: 23m. Five year height growth 7.5m (24.6 ftl

Silviculture: 120 gm 5% zinc super/tree at planting. Low

pruned. Very healthy but needs thinning badly.

Soil: Alluvial brown sandy loam apparently deep.

Commercial status: Mean DBHOB 22cm. 3 194m /ha. 8% mill,

80% case, 12% chip. Would be nice to thin now but best defer

at least 5 yrs and clear fell to maximise mill.

Site potential: High

Index Plan No. 47

WELLS PLOT 3 (on plan) CR/76/23

Brief inspection only.

Species: ½ plot is P. radiata and½ plot is P. pinaster


Area: 0. 9 ha

Age: P65 (18 yrs)

Stocking: 750/ha plus pine regrowth in the pinaster.

Silviculture: 1968 2½% zinc sulphate spray. Low pruned.

P. radiata only fair health with some sun scald. P. pinaster

healthy but only fair growth.

Commercial status: Only chip available. 16m3 guestimate.

Site potential: Satisfactory for pinaster.

WELLS PLOT 4 (on plan)

Brief inspection only

Species and Area: 0.8 ha

2.1 ha

Age: P65 ( 18 years)

Stocking: All cleaned to 750/ha

Index Plan No. 48

P. pinaster

P. radiata

CR/76/32

Silviculture: 1968 2½% zinc sulphate spray. All low pruned.

P. pinaster variable fair - good health. P. radiata fair only

with some sun scald. Diameter growth of pinaster is the greater.

Commercial status:

guestimate only.

Site potential:

Only chip available. 190m3 chip, 30m3 case

Marginal for pinaster, low for radiata.

Index Plan No. 49

KENNEDY PLOT l CQ/75/47

Species: Mainly P. radiata with a few halepensis, brutia

and pinea.

Original vegetation: Former horse paddock and gardens.

Age: P61 ( 22 yrs)

Area: 4 ha

Stocking: Approximately 1000/ha.

Codom height: 27m. Five year height growth 6.lm (20.1 ft)

Silviculture: Low pruned and some high pruned. 2½% zinc

sulphate spray 1963. 0.25 T/ha super 1964. Healthy but needs

thinning badly. Very little sun scald.

Soil: Description could be misleading - formerly horse

paddock.

Commercial status:

mill.

Roughly 200 m3/ha utilisable of which 20%

Site potential: Stand is similar to Wuraming plantation at

Hakea but more heavily stocked. The site would probably be

satisfactory at worst without the horse paddock effect but this

would need a closer check.

Index Plan No. 50

DEL PARK ROAD PLOT CS/61/97

Species: P. pinaster originally alternate rows P. halepensis -

many cleaned out.


Age: No record about P68 (15 yrs)

Area: 1 ha

Stocking: 750/ha


Silviculture: Form average and healthy. Low pruned.

Fertiliser history unknown.

Soil: Appears to be deep gravel.

Commercial status:

barely chip size.

Site potential:

3 3 60m /ha case and 30m chip. P. halepensis

Satisfactory

Index Plan No. 51

SCOTT PLOT NO. 2 N.E. ROAD CN/68/92


Original vegetation: Jarrah and Marri affected by dieback

Age: P68 (15 yrs)

Area: 1 ha

Stocking: 750/ha


Silviculture: 120gm zinc super at planting. 1975 120gm super

copper zinc/tree. Low pruned and cleared to 750. About 40%

regrowth from cleaning. Very healthy - among the fastest grown

plots in Northern Region.

Soil: Deep sandy colluvium, 'Clifton'.

Commercial status:

thinning.

Site potential:

79m3 case and 20m3 chip/ha. Badly needs

High

Index Plan No. 52

CAMERON PLOT 1/68 N.E. ROAD CK/71/93



Age: P68 (15 yrs)

Area: 1.3 ha

Stocking: 750/ha

Codom height: 15m. Five year height growth 5m (16.4 ft)

Silviculture: 120gm zinc super/tree at planting. 1975 120 gm

copper super zinc. Low pruned and cleaned with 40% regrowth

from cleaned pines. Very healthy and no doubt assisted by the

additional fertiliser.

Soil:

sand.

Laterite wash (sandy colluvium) at low end reddish loamy

'A Clifton'.

Commercial status: 75m3 case and 16m3 chip/ha. Needs thinning.


Index Plan No. 53

O'NEILL 1/68 N.E. ROAD CH/74/28



Age: P68 (15 yrs)

Area: 1.1 ha

Stocking: At original 2200/ha

Codom height: 12m. Five year height growth .4.0m (13 ft)

Silviculture: 120gm zinc super/tree at planting. Not pruned

or cleaned. Form very good but only fair health probably due

to deep gravel.

Soil: Gravelly colluvium more than 80% gravel. 'A. Clifton' .

Commercial status: Good pine rounds but no case - needs

thinning. 70m3 chip or rounds.

Site potential: Poor - unacceptable.

Index Plan No. 54

URBRAE PLOT 1 HUNTLEY H.0. CL/62/94

Species: P. radiata


Area: 2.9 ha

Age: P61 ( 2 2 yrs)

Stocking:

300-150/ha.

Previously thinned for case and chip. Ranges


Silviculture: 1963 2½% zinc sulphate spray. No mention of

initial fertiliser but previous fertilised planting had been

killed by fire. High pruned 1970. Health deteriorating and

needs thinning or clear felling.

Soil: Grey brown sandy loam - previously horse paddock so

not representative.

Commercial status: Over 95% mill logs of high quality. DBH

up to 45cm. Should be clear felled as soon as it can be marketed.

Total merch volume 200m3/ha.

Site potential: Cannot be judged due to previous history.

Index Plan No. 55

TURNER PLOT 2A TORRENS ROAD CM/60/04


Original vegetation: Jarrah and Dryandra, previously

heavily cut for dieback.

Age: P67 (16 yrs)

Area: 4.6 ha

Stocking: 750/ha


Silviculture: At planting 120 gm 5% zinc super/tree.

1974 0.25 T/ha super. Low pruned and cleaned with 10% pine

regrowth. Fairly healthy.

Soil : Medium-shallow depth over lateritic gravel with floaters.

Commercial status: Best to defer any cutting till a better

yield of case size. Mainly chip. Thinning at present.

26m3 chip and 20m3 case/ha .

Site potential: Marginal only. In this situation no pressing

need to clear fell as can be protected by burning.

Index Plan No. 56

WHITTAKER BLOCK DEL PARK ROAD CM/59/89

Species: P. pinaster with 0.6 ha radiata.


Age: P67 (16 yrs)

Area: 7.6 ha

Stocking: 750/ha

Codom height:

(12.3 ft)

Generally 12m. Five year height growth 3.75m

Silviculture: At planting 120 gm 5% zinc super/tree. 1974

0.25 T/ha super. Pruned and cleaned to 750. Healthy. Only

fair height growth but good diameter growth.

Soil: Gravel on higher parts, some loam on low ground.

Commercial status: Could be thinned for chip now but too soon

for case. 225m3 chip thinning yield.

Site potential: Only marginal. No pressing need to clear fell

as can be protected easily by burning.

Index Plan No. 57

BOMBALA PLOT 1 DA/75/86

FORMERLY WURAMING MILL SITE - The site is probably not

representative. Shown as a plantation on plans.

Species: P. radiata

Age: P.62 (21 yrs)

Area: 7. 5 ha

Stocking: Planted 1300/ha and no cleaning.

Codom height: 30m. Five year height growth 7.lm (23.4 ft)

Silviculture: 1962 2½% zinc sulphate spray.

1964 0.25 T/ha super.

Low pruned. Healthy but badly needs thinning. Sun scald

negligible.

Commercial status: 1200m3 case, 490m3 mill

Site potential: The stand is very similar to Wuraming Cpt. 1.

This site would probably at worst be satisfactory if the mill

had not been there. The degree of influence due to the mill

site would require further checking.

Index Plan No. 58

WURAMING CPT 1 DJ/76/99

Shown as a plantation on plans. Established over the former

Hakea mill site. It is included here because attention needs

to be drawn to it.

Species: P. radiata

Original vegetation: Probably Blackbutt and Jarrah but site

could be influenced by previous use.

Age: P62 (21 yrs)

Area: 7.8 ha

Stocking: 800/ha


Silviculture: Low pruned. Healthy but badly needs thinning

- already some windfalls. Sun scald negligible.

Soil: Brown sandy loam

Commercial status: 240m3/ha of which 30% mill size.

Site potential: Site would probably at worst be satisfactory

in its virgin state but this would need further checking.

Index Plan No. 59

HEDGES PLOT 1 CZ/75/96

Formerly site of Wuraming F.D. settlement.

Species: P. radiata

Age: P60 (23 yrs)

Area: 4.2 ha

Stocking: Part is thinned non-commercially to 120/ha and

remainder about 500/ha.

Silviculture: Super applied at planting - amount unknown.

1964 2½% zinc sulphate spray. Health is variable from fair

to poor and sun scald is common on the poorest.

Commercial status: 500m3 case, 100m3 mill - guestimate only.

Site potential: Not satisfactory.

Index Plan No. 60

PLOT 1 YARRIGAL FORM DA/68/44

Species: P. radiata

Original vegetation: Almost pure Jarrah, some Marri.

Age: Original planting in 1972 failed and whole plot

replanted 1975 (8 yrs).

Area: 2. 0 2 ha

Stocking: 1500/ha

Codom height: 14m. 5 yr height growth 8.75m (28.7 ft)

Silviculture: All Yarrigal Form plots had four fertiliser

treatments at planting.

( a) Control

(b) Super )

( c) Copper zinc super ) 120gm/tree )

(d) Manganese super )

No observations of results were recorded and there is no

obvious difference in 1983. No pruning done, healthy, good

form and overstocked. Non-commercial thinning is warranted

with low pruning of the remainder .

Soil: Planting is up a 14° slope. Lower part is red brown

sandy loam with some gravel. Gravel increases up slope.

Some basic granite outcrops.

Corrmercial status: 50% over 13cm at DBH OB 40m3/ha chip.

Site potential: Fairly high

Index Plan No. 61

PLOT 2 YARRIGAL FORM DA/68/62

Species: P. radiata

Original vegetation: Jarrah - some Blackbutt at bottom.

Age: Original planting 1972, failed and whole plot replanted

1975 (8 yrs).

Area: 2. 0 2 ha

Stocking: 1600/ha

Codom height: 13m. 5 yr height growth 8.lm (26.6 ft)

Silviculture: As for Yarrigal Form Plot 1.

Soil:

bottom.

Similar to Yarrigal Form Plot 1, except more gravel at 0 6 slope N.E. aspect.

Commercial status:

easily extracted.

Site potential:

50% has DBHOB over 13cm. 35m3/ha chip,

High

Index Plan No. 62

YARRIGAL FORM PLOT 3 DA/68/81

Species: P. radiata


P72 (13 yrs)

Area : 2 . 0 2 ha

Stocking: 1500/ha



Soil: 0 6 slope north aspect. Brown sandy loam at bottom with

gravel increasing upslope. Some granite outcroping at bottom.

Commercial status: 70% of trees have 2 x 2.7m chip lengths.

90m3/ha chip.

Site potential: High and very similar to P72 Murray Plantation.

Index Plan No. 63

YARRIGAL FORM PLOT 4 DA/69/11

Species: P. radiata


Age: Original planting in 1972 failed and whole plot

replanted 1975 (8 yrs).

Area: 2. 0 2 ha

Stocking: 1300/ha


Silviculture: As for Yarrigal Form Plot 1. Quality decreases

slightly upslope.

Soil: 0 Moderate 8 slope. At bottom red brown sandy loam with

gravel. Gravel increases upslope.

Commercial status: 50% of trees over 13cm DBHOB. 30m3/ha chip.

Site potential: High on lower ground - decreasing to fair.

Index Plan No. 64

YARRIGAL FORM PLOT 5 DB/69/49

Species: P. radiata

Original vegetation: Jarrah with some Blackbutt at bottom.

P75 (8 yrs)

Area: 2.02 ha

Stocking: 1600/ha



Soil: Only s0 slope. Red brown sandy loam with some gravel

at bottom. Gravel increases upslope.

Commercial status: 40% of trees over 13cm DBHOB. 35m3/ha _ chip.


Index Plan No. 65


Species: P. radiata

Original vegetation: Blackbutt and Jarrah at bottom.

Jarrah only at top.

Age: P75 ( 8 yrs)

Are a : 2 . 0 2 ha

Stocking: 1500/ha



Soil: Sandy loam at bottom with gravel increasing upslope. 0 Slope 5 N. aspect.

Commercial status: 50% of trees over 13cm DBHOB.

35m3/ha chip.

Site potential: High decreasing upslope.

Index Plan No. 66


Species: P. radiata

Original vegetation: Blackbutt and Jarrah at bottom,

Jarrah only at top.

Age: P72 (11 yrs)

Area: 2.02 ha

Stocking: 16OO/ha

Codom height: 20m. 5 year height growth 9.lm (29.8 ft)


Soil: Moderate 4° slope with N. aspect. At bottom, loamy

sand with gravel increasing upslope.

Commercial status: 70% of trees contain 2 x 2.7m chip logs.

9Om3/ha chip.


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