Agriculture & Biology
ecosystems
74%
steppes
66%
net primary productivity
49%
grasslands
39%
shrubs
30%
primary productivity
29%
grasses
28%
Argentina
26%
arid lands
24%
water
23%
climate change
20%
rain
18%
soil
16%
climate
14%
nitrogen
14%
drought
13%
ecosystem services
12%
soil water
12%
deserts
12%
vegetation
11%
Bouteloua gracilis
11%
grazing
11%
ultraviolet radiation
10%
rangelands
9%
Nematoda
9%
grazing effects
9%
arid grasslands
9%
carbon
8%
dry environmental conditions
8%
degradation
8%
herbivores
8%
Chihuahuan Desert
7%
mineralization
7%
biodiversity
7%
leaf water potential
6%
normalized difference vegetation index
6%
fens
6%
growing season
6%
shrublands
6%
biomass
6%
nitrification
6%
playas
6%
rooting
5%
species recruitment
5%
plant communities
5%
global change
5%
temperature
5%
Gunnera magellanica
5%
terrestrial ecosystems
5%
Earth & Environmental Sciences
steppe
60%
ecosystem
45%
grassland
38%
net primary production
37%
grass
34%
shrub
33%
water availability
23%
primary production
20%
desert
17%
effect
15%
rainfall
14%
grazing
13%
nematode
13%
ultraviolet B radiation
13%
water
13%
soil
12%
productivity
12%
nitrogen
12%
climate change
11%
rangeland
11%
drought
10%
soil water
9%
ecosystem service
9%
vegetation
8%
growing season
8%
seedling
8%
decomposition
8%
South America
8%
rooting
7%
shrubland
7%
experiment
7%
biomass
7%
seed
7%
playa
7%
carbon
7%
climate
6%
litter
6%
fen
6%
plant species
6%
loss
5%
desertification
5%
aboveground production
5%
soil moisture
5%
bare soil
5%
transpiration
5%
mineralization
5%
biome
5%
ecosystem process
5%
Medicine & Life Sciences
Grassland
100%
Ecosystem
99%
Soil
50%
Poaceae
31%
Climate Change
30%
Water
27%
Biodiversity
22%
Droughts
18%
Climate
16%
Herbivory
13%
Argentina
13%
Ultraviolet Rays
10%
Biomass
9%
Seedlings
9%
Temperature
8%
Carbon
8%
South America
7%
Sphagnopsida
7%
Nitrogen
6%
Prosopis
6%
North America
6%
Nutrients
6%
Conservation of Natural Resources
5%