Earth & Environmental Sciences
environmental change
71%
urbanization
68%
ecosystem
49%
productivity
38%
urban ecosystem
35%
air temperature
33%
soil organic matter
26%
desert
23%
environmental factor
23%
air
22%
effect
19%
ecosystem response
17%
nitrogen
16%
suburban area
16%
environmental stress
16%
soil nutrient
15%
water availability
14%
functional group
13%
dome
13%
shrub
12%
field experiment
12%
soil water
11%
carbon dioxide
11%
human activity
10%
rainfall
8%
winter
8%
resource
7%
laboratory
7%
simulation
6%
soil
5%
Agriculture & Biology
urbanization
95%
ecosystems
63%
net primary productivity
48%
carbon dioxide
43%
air temperature
25%
air
18%
soil organic matter
17%
Larrea
15%
heat island
15%
wildland
14%
Larrea tridentata
14%
Sonoran Desert
13%
winter annuals
12%
environmental factors
11%
suburban areas
11%
nitrogen
10%
soil nutrients
9%
deserts
8%
shrubs
8%
soil water
7%
species diversity
7%
rain
7%
soil
4%
water
3%
testing
3%
Chemical Compounds
Ecosystem
100%
Soil Organic Matter
27%
Soil
15%
Nitrogen
11%
Nutrient
9%
Carbon Dioxide
7%
Heat
6%
Simulation
5%
Environment
5%