Earth & Environmental Sciences
directive
100%
nitrate
72%
program
52%
nitrate directive
28%
mitigation
15%
loss
14%
project
12%
conflict
11%
ammonia
10%
environmental impact
10%
nitrous oxide
10%
literature review
10%
European Union
9%
groundwater
8%
consultation
7%
agriculture
7%
runoff
7%
agricultural production
6%
nutrient
6%
emission into water
5%
leaching
5%
emission to air
4%
land use
4%
water quality
4%
pollution
4%
software
4%
economic viability
4%
policy development
4%
policy
4%
fertilizer application
4%
European Commission
3%
biochemical oxygen demand
3%
analysis
3%
trend
3%
pollution control
3%
spatial data
3%
water use
3%
pathogen
3%
soil erosion
3%
pesticide
2%
fertilizer
2%
farm
2%
agricultural land
2%
carbon dioxide
2%
flooding
2%
atmospheric pollution
2%
geology
2%
irrigation
2%
methane
2%
document
2%
catchment
2%
decision making
2%
biodiversity
2%
phosphorus
2%
statistics
2%
nitrogen
2%
atmosphere
2%
sampling
1%
climate
1%
comparison
1%
effect
0%
method
0%