Subject
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landscape
1
leaf
1
management
6
metabolism
1
microbial ecology
1
microbiology
1
microorganism
2
monitoring
1
natural water
1
nature conservation
2
ozone
1
parasite
1
photosynthesis
3
plant
1
plant ecology
5
plant growth
3
plant physiology
2
plant protection
1
population dynamics
1
population ecology
4
preservation
2
protozoon
1
recovery
1
rehabilitation
1
reproduction
1
respiration
2
simulation
1
sociobiology
1
soil
2
soil animals
1
soil microbiology
1
symbiosis
2
system analysis
1
temperature effect
1
trace gas
1
vegetation
2
waste disposal
1
waste management
1
waste processing
1
waste water treatment
1
water purification
1
water quality
1
wetland
2