Earth & Environmental Sciences
sewage sludge
78%
heavy metal
59%
soil
35%
dissolved organic carbon
26%
rewetting
24%
drying
22%
wetting
17%
metal
16%
biological contamination
14%
index
13%
sludge
13%
mineralization
13%
contamination
12%
soil process
11%
soil quality
9%
effect
8%
contaminated soil
8%
soil property
8%
cadmium
7%
regeneration
7%
microbial community
7%
zinc
7%
compression
7%
decomposition
6%
copper
6%
heating
6%
carbon
5%
rate
2%
Agriculture & Biology
sewage sludge
100%
heavy metals
72%
dissolved organic carbon
41%
soil
41%
drying
23%
metals
23%
sludge
22%
mineralization
20%
soil aggregation
14%
copper sulfate
11%
polluted soils
10%
soil properties
10%
microbial communities
9%
soil quality
9%
cadmium
9%
copper
8%
zinc
8%
carbon
6%
degradation
6%
heat
5%