Earth & Environmental Sciences
soil ecosystem
83%
earthworm
75%
zinc
53%
soil process
40%
soil respiration
37%
soil organic matter
31%
litter
31%
soil surface
29%
test animal
24%
soil fauna
22%
soil organism
22%
soil
21%
environmental risk assessment
20%
leaf litter
20%
pollutant
19%
toxicity test
18%
ecosystem process
18%
loss
17%
microcosm
17%
effect
15%
biota
15%
fragmentation
14%
risk assessment
12%
decomposition
11%
ecosystem
9%
experiment
6%
parameter
5%
Agriculture & Biology
soil ecosystems
89%
earthworms
69%
Lumbricus rubellus
58%
zinc
52%
losses from soil
41%
soil
33%
soil respiration
32%
soil organic matter
25%
soil fauna
17%
animal tests
16%
soil biota
16%
environmental assessment
15%
toxicity testing
13%
risk assessment
13%
plant litter
13%
ecosystems
10%
degradation
8%
organisms
7%
Medicine & Life Sciences
Oligochaeta
100%
Ecosystem
73%
Soil
72%
Zinc
63%
Risk Assessment
7%
Respiration
7%
Biota
7%
Toxicity Tests
6%
Health Care Outcome Assessment
3%
Animals
2%
Population
1%