Agriculture & Biology
nitrogen cycle
100%
ecosystems
57%
carbon
49%
degradation
46%
soil
38%
fire frequency
33%
savannas
30%
soil organic matter
21%
extracellular enzymes
17%
phytomass
15%
biogeochemistry
11%
enzyme activity
10%
chemical constituents of plants
9%
plant biochemistry
9%
soil carbon
9%
temperate forests
8%
Northern Africa
8%
forest ecosystems
8%
coniferous forests
8%
chitin
7%
plant communities
7%
polyphenols
6%
lignin
6%
canopy
6%
starch
5%
cellulose
5%
biomass
4%
nitrogen
4%
Earth & Environmental Sciences
decomposition
54%
nitrogen
45%
ecosystem
44%
carbon
42%
soil
32%
savanna
29%
enzyme activity
14%
tree biomass
9%
organic matter
9%
chitin
8%
biomass
8%
North Africa
7%
coniferous forest
7%
biogeochemistry
7%
temperate forest
7%
lignin
7%
starch
7%
soil carbon
7%
forest ecosystem
6%
cellulose
6%
plant community
6%
soil organic matter
6%
turnover
6%
canopy
5%
North America
5%
fold
5%
effect
4%
loss
3%
rate
2%