Why I Hate Why I Hate PowerPointPowerPoint

Also, the Impact of Class Also, the Impact of Class Definition on Landscape Definition on Landscape

Metrics Used in FRAGSTATSMetrics Used in FRAGSTATS

The DetailsThe Details

► Consolidate Classes from Lab 1Consolidate Classes from Lab 1► Apply the same metrics to data from the Apply the same metrics to data from the

same year (2001).same year (2001).► Observe resultsObserve results► Interpret resultsInterpret results

Original ClassesOriginal Classes

►Following Slides Contain a List of the Following Slides Contain a List of the Original Classes.Original Classes.

►More than 30 classes.More than 30 classes.

Class Description

111 Developed: Highly (>75% impervious surface)

112 Developed: Moderately (50-75% impervious surface)

113 Developed: Lightly - wooded (25-50% impervious surface)

114 Developed: Lightly - unwooded (25-50% impervious surface)

120 Cultivated (actively tilled, fallow and recently abandoned)

131 Grassland: unmanaged (grazed land, old fields, abandoned land)

132 Grassland: managed (golf courses, residential/corporate lawn, parks)

133 Grassland: airport

141Upland Forest: Coastal Plain Oak dominant (Oak > 75%)

142Upland Forest: Coastal Plain Oak-pine (Oak 50-75%)

143Upland Forest: Coastal Plain Pine-oak (Pine 50-75%)

144Upland Forest: Coastal Plain Pine dominant (Pine > 75%)

145Upland Forest: Highlands/Piedmont deciduous - mixed hardwoods dominant

146Upland Forest: Highlands/Piedmont mixed deciduous/coniferous - hemlock/pine

147Upland Forest: Highlands/Piedmont mixed deciduous/coniferous - red cedar/pine

148Upland Forest: Highlands/Piedmont coniferous - hemlock/pine dominant

149Upland Forest: Highlands/Piedmont coniferous - red cedar/pine/plantation dominant

151Upland Scrub/Shrub: Coastal Plain mixed deciduous/coniferous

152Upland Scrub/Shrub: Coastal Plain mixed deciduous/coniferous - maritime/dune

153Upland Scrub/Shrub: Highlands/Piedmont mixed deciduous/coniferous

160Barren soil/rock (sand/gravel pits, barren < 25% vegetation)

200 Marine/Estuarine Unconsolidated shore

210 Estuarine emergent marsh

230Riverine/lacustrine/palustrine emergent marsh: mixed species

241Wetland Forest: Coastal Plain hardwood swamp (>66% deciduous)

242Wetland Forest: Coastal Plain pine lowland (>66% evergreen)

243Wetland Forest: Coastal Plain mixed - hardwood/white cedar-pine-

holly

244Wetland Forest: Coastal Plain white cedar swamp (>66%

evergreen)

245 Wetland Scrub/shrub: Coastal Plain mixed

246Wetland Forest: Highlands/Piedmont hardwood swamp (>66%

deciduous)

247Wetland Forest: Highlands/Piedmont mixed -

hardwood/hemlock/white cedar/pine

248Wetland Forest: Highlands/Piedmont conifer swamp -

hemlock/cedar/pine dominant (>66% evergreen)

249Wetland Scrub/shrub: Highlands/Piedmont mixed

deciduous/evergreen

250 Water

ConsolidationConsolidation

►ArcView condition (“con”) command.ArcView condition (“con”) command.►All Urban Classes All Urban Classes 1 Developed 1 Developed

Class.Class.►All Upland Forest Classes All Upland Forest Classes 1 Class. 1 Class.►Wetland Forest Classes Wetland Forest Classes 1 Class. 1 Class.►Some Classes not combined (pasture, Some Classes not combined (pasture,

fresh/salt water marsh, water, bare fresh/salt water marsh, water, bare soil).soil).

30+ Classes Down to 12 Classes30+ Classes Down to 12 Classes

Class Land Use

1 Developed

2 Cultivated

3 Grassland

4 Upland Forest

5 Upland Shrub

6 Barren Soil/Bare Rock

7 Marine/Estuarine Unconsolidated shore

8 Estuarine emergent marsh

9 Riverine/lacustrine/palustrine emergent marsh: mixed species

10 Wetland Forest

11 Wetland Shrub

12 Water

VS

What Are the Impacts?What Are the Impacts?

Original (Landscape)Original (Landscape)

MetriMetricc

YearYear NPNP LPILPI TETE SIDISIDI

19841984 2854 2854 13.04913.049 174452717445277 7

0.88820.8882

19951995 2823 2823 12.936912.9369 174762017476200 0

0.88690.8869

20012001 2865 2865 11.68811.688 1768368176836800

0.89180.8918

Modified (Landscape)Modified (Landscape)

MetriMetricc

YearYear NPNP LPILPI TETE SIDISIDI

19841984 1599 1599 13.35913.359 1338744133874488

0.8015 0.8015

19951995 15721572 14.091214.0912 135530313553033 3

0.80120.8012

20012001 1590 1590 14.821114.8211 1377348137734800

0.80390.8039

Patch

Den

sity

(PD)

00.00

20.00

40.00

60.00

80.010.

0120.01

4

111 112 113 114 120 131 132 133 141 142 143 144 145 146 147 148 149 151 152 153 160 200 210 230 241 242 243 244 245 246 247 248 249 250

Class

PD

1984

1995

2001

Patch Density, Combined

0

0.002

0.004

0.006

0.008

0.01

0.012

0.014

0.016

1

2

3

4

5

6

7

8

9

10

11

12

Class

PD

198419952001

Percentage of Landscape (PLAND)

0

5

10

15

20

25

111

112

113

114

120

131

132

133

141

142

143

144

145

146

147

148

149

151

152

153

160

200

210

230

241

242

243

244

245

246

247

248

249

250

Class

PLA

ND

198419952001

Percentage of Landscape, Combined

0

5

10

15

20

25

30

35

12

34

56

78

910

1112

Class

PL

AN

D

1984

1995

2001

Patch

Den

sity

(PD)

0

0.00

2

0.00

4

0.00

6

0.00

8

0.01

0.01

2

0.01

4

111112

113114

120131

132133

141142

143144

145146

147148

149151

152153

160200

210230

241242

243244

245246

247248

249250

Class

PD

1984 19

95 2001

Patch Density (PD)

0

0.002

0.004

0.006

0.008

0.01

0.012

0.014

11

1

11

2

11

3

11

4

12

0

13

1

13

2

13

3

14

1

14

2

14

3

14

4

14

5

14

6

14

7

14

8

14

9

15

1

15

2

15

3

16

0

20

0

21

0

23

0

24

1

24

2

24

3

24

4

24

5

24

6

24

7

24

8

24

9

25

0

Class

PD

1984

1995

2001

Patch Density, Combined

0

0.002

0.004

0.006

0.008

0.01

0.012

0.014

0.016

1 2 3 4 5 6 7 8 9 10 11 12

Class

PD

1984

1995

2001

PD ConclusionsPD Conclusions

►CombinedCombined only shows slight only shows slight increased in PDincreased in PD

►Original Original Class 112 increases the Class 112 increases the most while Class 113 is has the most while Class 113 is has the highest total PD.highest total PD.

►Loss of detail, information.Loss of detail, information.

Percentage of Landscape (PLAND)

0

5

10

15

20

2511

1

112

113

114

120

131

132

133

141

142

143

144

145

146

147

148

149

151

152

153

160

200

210

230

241

242

243

244

245

246

247

248

249

250

Class

PL

AN

D 1984

1995

2001

Percentage of Landscape, Combined

0

5

10

15

20

25

30

35

1 2 3 4 5 6 7 8 9 10 11 12

Class

PL

AN

D 1984

1995

2001

PLAND ConclusionsPLAND Conclusions

►Combining classes increases PLAND vs Combining classes increases PLAND vs classes that were not combined.classes that were not combined.

►Graph two only shows increased trend Graph two only shows increased trend in the developed class.in the developed class.

►Detail is lost.Detail is lost.

Patch Cohesion

0

20

40

60

80

100

120

111

112

113

114

120

131

132

133

141

142

143

144

145

146

147

148

149

151

152

153

160

200

210

230

241

242

243

244

245

246

247

248

249

250

Class

Co

hes

ion 1984

1995

2001

COHESION, Combined

0

20

40

60

80

100

120

1 2 3 4 5 6 7 8 9 10 11 12

Class

CO

HE

SIO

N

1984

1995

2001

COHESION ConclusionsCOHESION Conclusions

►Graph two only shows a slight increase Graph two only shows a slight increase in cohesion for Class 1.in cohesion for Class 1.

► In Graph one: 111 decreases, 112 In Graph one: 111 decreases, 112 increases, 113 decreases, and 114 increases, 113 decreases, and 114 decreases in 1984 then increases by decreases in 1984 then increases by 1995. 1995.

►Detail.Detail.

ConclusionsConclusions

► Impact on Landscape metrics was Impact on Landscape metrics was straight-forward.straight-forward.

►Loss of detail in class-level metrics.Loss of detail in class-level metrics.►Change relationships between patches Change relationships between patches

and classes.and classes.

The EndThe End

►Annoying Sound Effects!Annoying Sound Effects!►Graphs!Graphs!►Amazing Special Effects!Amazing Special Effects!►This is even better than a Duck Tales This is even better than a Duck Tales

Episode!Episode!