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