Social Sciences
environmental pollution
70%
population growth
66%
reconstruction
58%
river
42%
urbanization
41%
economic growth
38%
Coastal environments
37%
Wastewater treatment
31%
megacity
30%
evaluation
30%
Agricultural land
28%
Water quality
28%
conservation
18%
water
17%
Japan
16%
Medicine & Life Sciences
Nitrogen
65%
Population Growth
50%
Nutrients
45%
Fertilizers
41%
Economic Development
35%
Waste Water
34%
Urbanization
34%
Rivers
32%
Eutrophication
23%
Water Quality
19%
Water
17%
Oceans and Seas
15%
Soil
14%
Japan
11%
Earth & Environmental Sciences
catchment
50%
population growth
36%
nutrient
34%
evaluation
31%
economic growth
26%
fertilizer
22%
urbanization
21%
megacity
15%
soil and water assessment tool
15%
river
12%
coastal zone
12%
wastewater treatment plant
12%
eutrophication
11%
coastal area
11%
Asia
10%
agricultural land
10%
wastewater
8%
water quality
8%
land
7%
Engineering & Materials Science
Catchments
100%
Contamination
64%
Nitrogen
61%
Nutrients
36%
Fertilizers
18%
Rivers
14%
Eutrophication
12%
Economics
9%
Water
7%
Conservation
7%
Soils
5%