Agriculture & Biology
metropolitan areas
100%
urbanization
87%
soil nutrients
77%
deserts
72%
ecosystems
57%
nutrients
45%
Sonoran Desert
26%
landscaping
25%
canopy
22%
preserves
18%
soil resources
12%
land cover
12%
water conservation
11%
phytophagous insects
11%
urban areas
9%
water holding capacity
9%
soil properties
9%
land use
9%
soil organic matter
9%
soil water
8%
history
7%
nitrogen
5%
soil
4%
Earth & Environmental Sciences
soil nutrient
82%
metropolitan area
74%
desert
63%
urbanization
62%
nutrient
49%
ecosystem
44%
canopy
18%
effect
17%
city
17%
preserve
13%
soil resource
9%
inorganic nitrogen
8%
water conservation
8%
insect
7%
plant species
6%
soil property
6%
soil moisture
6%
replacement
6%
land cover
6%
urban area
5%
organic matter
5%
land use
5%
history
4%
resource
4%
soil
3%
distribution
2%
water
2%
Social Sciences
desert
88%
urbanization
71%
agglomeration area
71%
landscape management
22%
Water conservation
11%
land use
7%
manipulation
6%
urban area
6%
resources
6%
water
5%
history
4%