Earth & Environmental Sciences
energy crop
77%
modeling
71%
river
65%
eutrophication
64%
sea
57%
Europe
54%
aquatic environment
52%
human development index
51%
water quality
50%
nutrient
45%
nutrient cycle
45%
pollutant
40%
land
39%
nanomaterial
38%
urbanization
38%
river basin
36%
world
35%
hydrological cycle
34%
carbon cycle
33%
Africa
31%
fertilizer
30%
diet
29%
marine environment
29%
water
25%
food
23%
surface water
23%
pollution
22%
trend
20%
biogeochemical cycle
19%
urban water
19%
coastal water
18%
global model
18%
phosphorus
18%
Southeast Asia
18%
nitrogen
18%
drainage basin
17%
diesel
17%
energy
16%
basin
16%
water pollution
16%
fragmentation
15%
pollutant flow
14%
nutrition
13%
sustainable development
13%
human activity
13%
sustainability
12%
income
11%
ecosystem assessment
11%
health
11%
population growth
11%
Engineering & Materials Science
Rivers
100%
Crops
75%
Biodiesel
72%
Microplastic
58%
Eutrophication
57%
Fertilizers
39%
Nutrients
25%
Soils
13%
Nitrogen
11%
Watersheds
8%
Water quality
8%
Phosphorus
8%
Runoff
8%
Biofuels
7%
Aquatic organisms
7%
Agriculture
7%
Ecosystems
7%
Bactericides
7%
Sanitation
7%
Leaching
6%
Waste management
5%
Greenhouse gases
5%
Sewage
5%
Sedimentation
5%
Carbon dioxide
5%
Sorption
5%
Social Sciences
Water quality
87%
pollutant
77%
Surface waters
50%
scenario
50%
water
40%
river
28%
urbanization
21%
Drainage basins
21%
classroom
17%
measurement method
15%
water pollution
15%
energy
14%
aggregation
12%
learning
11%
interaction
10%
environmental impact
10%
sustainable development
9%
sustainability
8%
funding
7%
inclusion
7%
planning
6%
River basins
5%
threat
5%
South Asia
5%
health
5%
