Earth & Environmental Sciences
ecosystem response
100%
student
67%
grassland
66%
ecosystem process
53%
desert
53%
ecosystem
47%
net primary production
38%
minority
37%
climate change
37%
project
33%
science
31%
plant species
28%
education
27%
rainout
24%
nonprofit organization
23%
Atlantic Multidecadal Oscillation
21%
rainfall
20%
Pacific Decadal Oscillation
20%
nitrogen
19%
effect
18%
soil nitrogen
18%
irrigation system
17%
isotopic ratio
17%
mathematics
17%
shelter
17%
semiarid region
16%
arid region
16%
population dynamics
15%
participation
14%
drought
12%
irrigation
12%
mineralization
12%
productivity
11%
engineering
10%
program
8%
trend
8%
experiment
6%