Agriculture & Biology
old-growth forests
100%
coniferous forests
80%
understory
76%
plant communities
72%
Pinus strobus
29%
shrubs
27%
Eurybia macrophylla
22%
community structure
20%
Corylus cornuta
20%
herbs
19%
Corylus
16%
Pinus resinosa
15%
Betula papyrifera
15%
Acer rubrum
14%
stand structure
14%
overstory
13%
boreal forests
12%
forest litter
12%
forest stands
12%
soil depth
11%
mineralization
10%
cluster analysis
9%
canopy
8%
history
8%
nitrogen
6%
soil
5%
Earth & Environmental Sciences
understory
80%
plant community
72%
pine
64%
shrub
29%
herb
22%
community structure
18%
stand structure
13%
forest floor
12%
soil depth
11%
boreal forest
10%
cluster analysis
10%
plant species
9%
canopy
8%
disturbance
7%
nitrogen
6%
history
6%
soil
4%
effect
2%