Agriculture & Biology
arid lands
86%
shrubs
63%
degradation
63%
ecosystems
50%
soil
49%
soil organic carbon
48%
grasslands
42%
Chihuahuan Desert
41%
plant litter
37%
nitrogen
32%
canopy
28%
fire history
26%
carbon sinks
26%
savanna woodlands
25%
brush control
21%
isoprene
21%
vegetation
20%
herbivores
20%
Namibia
20%
grazing
20%
biodiversity
19%
climate change
19%
Prosopis velutina
18%
soil carbon
18%
arid grasslands
18%
meta-analysis
18%
rain
17%
grasses
16%
photolysis
16%
woodlands
16%
carbon
15%
vegetation cover
14%
soil water
14%
leaves
14%
grazing effects
14%
woody plants
14%
soil aggregates
13%
soil respiration
13%
rangelands
12%
livestock
11%
biogeochemistry
11%
climate
10%
Ceanothus americanus
10%
land management
10%
soil resources
10%
biological soil crusts
10%
ecosystem services
10%
total nitrogen
10%
shrublands
9%
biogeochemical cycles
9%
Earth & Environmental Sciences
litter
100%
shrub
72%
decomposition
65%
soil
56%
grassland
48%
ecosystem
36%
desert
36%
organic carbon
31%
leaf litter
31%
canopy
27%
woodland
25%
nitrogen
24%
effect
22%
grazing
21%
soil carbon
21%
isoprene
19%
carbon
18%
vegetation
18%
grass
18%
woody plant
18%
meta-analysis
17%
soil biodiversity
17%
photodegradation
16%
fire history
14%
loss
14%
rainfall
14%
livestock
14%
soil surface
13%
soil aggregate
13%
ecosystem process
13%
savanna
12%
insect
12%
biomass
12%
soil respiration
12%
shrubland
12%
rangeland
11%
vegetation cover
11%
gall
11%
photosynthesis
11%
soil moisture
11%
damage
10%
soil resource
9%
rate
9%
shoot
9%
plant community
9%
soil crust
8%
land management
8%
climate
8%
Medicine & Life Sciences
Soil
71%
Ecosystem
61%
Grassland
37%
Prosopis
37%
Nitrogen
33%
Carbon
30%
Climate Change
27%
Biodiversity
18%
Herbivory
14%
Forests
13%
Climate
13%
Water
12%
Temperature
11%
Food Chain
10%
Poaceae
10%
Isopoda
9%
Photosynthesis
9%
Populus
9%
isoprene
8%
Introduced Species
8%
Southwestern United States
8%
Meristem
8%
Seedlings
8%
Budgets
7%
Insecta
7%
Thermotolerance
7%
Photolysis
7%
Asteraceae
7%
Controlled Environment
7%
Nutrients
7%
Tilia
7%
Livestock
6%
Sulfur
6%
Light
6%
Droughts
5%
Ultraviolet Rays
5%
Gases
5%
Groundwater
5%