Earth & Environmental Sciences
litter
86%
warming
71%
decomposition
66%
effect
21%
loss
20%
soil crust
17%
soil
16%
leaf litter
15%
nitrogen
15%
carbon
14%
physical environment
14%
ecosystem process
14%
lichen
14%
soil fertility
14%
moss
13%
cyanobacterium
12%
soil surface
11%
moisture
9%
degradation
8%
ecosystem
7%
climate change
7%
experiment
5%
temperature
4%
rate
4%
Agriculture & Biology
arid lands
99%
plant litter
94%
degradation
56%
soil
31%
biological soil crusts
23%
ecosystems
23%
carbon
20%
nitrogen
17%
lichens
15%
mosses and liverworts
15%
soil fertility
14%
Cyanobacteria
13%
climate change
12%
temperature
6%
Medicine & Life Sciences
Soil
100%
Ecosystem
34%
Carbon
30%
Nitrogen
30%
Bryophyta
24%
Lichens
21%
Climate Change
21%
Cyanobacteria
20%
Fertility
14%
Temperature
11%