Agriculture & Biology
boreal forests
18%
carbon
10%
carbon nitrogen ratio
16%
carbon sequestration
17%
China
9%
ecosystems
34%
forest ecosystems
17%
forest litter
17%
mineral soils
19%
montane forests
17%
nitrogen
44%
primary forests
100%
soil
7%
stable isotopes
16%
temperate forests
35%
tracer techniques
76%
tropical forests
81%
Earth & Environmental Sciences
boreal forest
15%
carbon
8%
carbon sequestration
42%
ecosystem
27%
Europe
10%
forest ecosystem
14%
forest floor
17%
labeling
15%
loss
8%
method
3%
mineral
8%
nitrogen
46%
North America
12%
plant component
22%
primary forest
98%
soil
13%
stable isotope
13%
temperate forest
33%
tracer
60%
tropical forest
61%