dead wood c dynamics in boreal and temperate forest · dead wood c dynamics in boreal and temperate...
TRANSCRIPT
Dead wood C dynamics in boreal and temperate
forest, two examples
Meelis Seedre
Czech University of Life Sciences
Department of Forest Ecology
8/4/14 Helsinki Ecosystem services from dead wood
in North European forests
NB! This is not intended as a stand alone presentation.
Yesterday
Visualization of C partitioning in forest ecosystem
Dead wood matters
Every other C pool also matters
All have their own dynamics
What we do with dead wood in Carpathian mountains. Dr. Miroslav Svoboda Forest Ecology team
500 plots with known disturbance history (mixed severity wind), through 10000+ cores
Europs last primary spruce forests
Dead wood measured!
Also dead wood temperature and decay projects
Example 1- Boreal mixedwoods
150 km north of Thunder Bay, Ontario, Canada
350–370 m elevation
Warm summers and cold, snowy winters
Mean annual temperature and precipitation are -1.2°C and 725 mm, growing season is approximately 160 d, with a mean growing season temperature of 12.3°C
Silty and loamy sands of the Brunisolic and Podzolic orders originating from glacial morains
Stand-replacing wildfire is the dominant natural disturbance
Average fire-return interval of approximately 100 years
Dominant tree species in our study area;
jack pine (Pinus banksiana Lamb.), aspen (Populus tremuloides Michx.), white birch (Betula papyrifera Marsh.), black spruce (Picea mariana [Mill.] B.S.P), white spruce (Picea glauca [Moench] Voss), and balsam fir (Abies balsamea [L.] Mill.)
Example 1- Boreal mixedwoods
150 km north of Thunder Bay, Ontario, Canada
350–370 m elevation
Warm summers and cold, snowy winters
Mean annual temperature and precipitation are -1.2°C and 725 mm, growing season is approximately 160 d, with a mean growing season temperature of 12.3°C
Silty and loamy sands of the Brunisolic and Podzolic orders originating from glacial morains
Stand-replacing wildfire is the dominant natural disturbance
Average fire-return interval of approximately 100 years
Dominant tree species in our study area;
jack pine (Pinus banksiana Lamb.), aspen (Populus tremuloides Michx.), white birch (Betula papyrifera Marsh.), black spruce (Picea mariana [Mill.] B.S.P), white spruce (Picea glauca [Moench] Voss), and balsam fir (Abies balsamea [L.] Mill.)
Boreal mixedwoods- dead wood C
Seedre, M., A.R. Taylor, B.W. Brassard, H.Y.H. Chen, and K. Jõgiste. 2014. Recovery of ecosystem carbon stocks in young boreal forests: a comparison of harvesting and wildfire disturbance. Ecosystems. 10.1007/s10021-014-9763-7
Dead wood among other C pools
Importance of dead wood in forest productivity
Taylor, A.R., M. Seedre, B.W. Brassard, and H.Y.H. Chen. 2014. Decline in net ecosystem productivity following canopy transition to late-succession forests. Ecosystems. 10.1007/s10021-014-9759-3
Example 2-
Old growth montane spruce forest
Čertovo Lake catchment, Bohemian Forest, Czech Republic
86.9 ha (lake 10.7 ha)
Almost pure spruce forest with some beech
Age 115 – 145
Elevation 1000 – 1350
~0.5 m deep dystric cambisol (58%), podsol (21%), and shallow (~0.2 m) leptosol (17%);
.
115 120 125 130 135 140 145
050
100
150
200
Age
DW
D.C
44
49
23 14
1
34
Alt.range
1000-1100
1100-1200
1200-1340
.
115 120 125 130 135 140 145
050
100
150
Age
Snag.t
ota
l.C
5328
45
46
25
2
Alt.range
1000-1100
1100-1200
1200-1340
.
115 120 125 130 135 140 145
50
100
150
200
250
Age
Deadw
ood.C
44
30
24
14
256
Alt.range
1000-1100
1100-1200
1200-1340
.
115 120 125 130 135 140 145
50
100
150
200
250
Age
Deadw
ood.C
44
30
24
14
256
Alt.range
1000-1100
1100-1200
1200-1340
115 120 125 130 135 140 145
100
150
200
250
300
Age
Soil.
C
43
53
24
46
6
34
Alt.range
1000-1100
1100-1200
1200-1340
115 120 125 130 135 140 145
100
150
200
250
300
350
Age
Liv
e.b
iom
ass.C
49
52
24
17
34
6
Alt.range
1000-1100
1100-1200
1200-1340
115 120 125 130 135 140 145
200
300
400
500
600
700
Age
Tota
l.C
49
53
24
22
34
6
Alt.range
1000-1100
1100-1200
1200-1340
Dead wood makes all the difference!
.
1050 1100 1150 1200 1250 1300 1350
050
100
150
200
Elevation
DW
D.C
44
1
Age.group
120126
131
135
140
.
1050 1100 1150 1200 1250 1300 1350
050
100
150
Elevation
Snag.t
ota
l.C
45
2
Age.group
120126
131
135
140
.
1050 1100 1150 1200 1250 1300 1350
50
100
150
200
250
Elevation
Deadw
ood.C
44
1
Age.group
120126
131
135
140
.
1050 1100 1150 1200 1250 1300 1350
100
150
200
250
Elevation
Liv
e.a
bovegro
und.C
51
2
Age.group
120126
131
135
140
1050 1100 1150 1200 1250 1300 1350
50
100
150
200
250
Elevation
Deadw
ood.C
44
1
Age.group
120126
131
135
140
1050 1100 1150 1200 1250 1300 1350
100
150
200
250
300
Elevation
Soil.
C
46
1
Age.group
120126
131
135
140
1050 1100 1150 1200 1250 1300 1350
200
300
400
500
600
700
Elevation
Tota
l.C
6
2
Age.group
120126
131
135
140
.
115 120 125 130 135 140 145
50
100
150
200
250
Age
Deadw
ood.C
44
30
24
14
256
Alt.range
1000-1100
1100-1200
1200-1340
115 120 125 130 135 140 145
100
150
200
250
300
Age
Soil.
C
43
53
24
46
6
34
Alt.range
1000-1100
1100-1200
1200-1340
115 120 125 130 135 140 145
100
150
200
250
300
350
Age
Liv
e.b
iom
ass.C
49
52
24
17
34
6
Alt.range
1000-1100
1100-1200
1200-1340
115 120 125 130 135 140 145
200
300
400
500
600
700
Age
Tota
l.C
49
53
24
22
34
6
Alt.range
1000-1100
1100-1200
1200-1340
There is no question about the importance of quantifying dead wood C, it really matters! /More so in natural forest.
Usually necessary data is collected during basic forest measurements.
Methodology exists for C calculations.
Due to using 50% C, pools likely underestimated.
Data on density and C concentration is scarce. We are here to solve this problem! �
And don’t forget- dead roots!
In conclusion
Thanks