Agriculture & Biology
Midwestern United States
77%
net primary productivity
76%
Eastern United States
75%
climate
46%
ecosystems
44%
soybeans
24%
winter wheat
24%
corn
21%
deciduous forests
19%
spring wheat
18%
agroecosystems
18%
grasslands
14%
climate change
14%
landscape management
12%
timber production
10%
temperature
10%
carbon sinks
10%
food production
8%
soil quality
7%
crop yield
7%
irrigation
6%
vegetation
6%
summer
5%
carbon
5%
nitrogen
4%
crops
4%
Earth & Environmental Sciences
productivity trend
100%
ecosystem
34%
trend
29%
wheat
24%
soybean
23%
maize
19%
productivity
14%
agricultural ecosystem
12%
deciduous forest
11%
winter
9%
grassland
8%
forestry production
6%
growth response
6%
ecosystem dynamics
6%
evergreen forest
6%
carbon sink
6%
temperature
6%
crop yield
5%
food production
5%
soil condition
5%
observation satellite
5%
irrigation
4%
crop
3%
vegetation
3%
nitrogen
3%
summer
3%
carbon
3%