Landbrug og biologi
acidification
86%
acids
5%
alkalinity
6%
aquatic ecosystems
5%
biomass
9%
Denmark
5%
eutrophication
100%
hydrochemistry
6%
lakes
70%
Lemna trisulca
9%
macrophytes
21%
nitrogen
2%
nutrients
9%
phosphorus
3%
phytoplankton
5%
pollution
4%
pollution control
6%
Potamogeton berchtoldii
10%
sewage
5%
sewage treatment
6%
Sparganium emersum
9%
species diversity
3%
species richness
17%
sulfur oxides
8%
vegetation
63%
water
2%
water quality
15%
Geo- og miljøvidenskab
acid
6%
acidification
82%
alkalinity
5%
aquatic ecosystem
5%
biomass
9%
community composition
4%
Europe
3%
eutrophication
77%
lake
50%
lake water
5%
macrophyte
21%
nitrogen
3%
North America
4%
nutrient
10%
phosphorus
3%
phytoplankton
4%
pollution
3%
pollution control
5%
recolonization
6%
sewage
4%
sewage treatment
5%
species richness
18%
sulfur oxide
7%
vegetation
51%
water
3%
water chemistry
5%
water quality
3%