Earth & Environmental Sciences
canopy
6%
climate change
9%
crop
48%
decomposition
6%
development model
34%
ecotone
39%
field experiment
7%
food security
8%
intercropping
100%
interspecific interaction
11%
land
15%
leaching
6%
limiting factor
8%
maize
30%
modeling
14%
natural resource
7%
nutrient
5%
organ
7%
organic matter
5%
productivity
5%
rainfed agriculture
11%
resource use
36%
roughness
7%
soil erosion
15%
soil fertility
17%
spatial distribution
5%
temporal distribution
8%
vegetation cover
8%
water
10%
water extraction
42%
water use
12%
water use efficiency
8%
wheat
30%
wind erosion
10%
Agriculture & Biology
canopy
6%
China
14%
climate
6%
climate change
14%
corn
21%
crop models
20%
crops
26%
degradation
5%
ecotones
43%
food security
8%
intercropping
73%
land use
5%
leaching
8%
natural resources
9%
nutrients
5%
organic matter
7%
rainfed farming
11%
roughness
10%
simulation models
8%
soil erosion
10%
soil fertility
15%
spatial distribution
7%
vegetation cover
9%
water
13%
water use efficiency
7%
wheat
21%
wind erosion
12%