Agriculture & Biology
nitrogen retention
100%
soil carbon
98%
gardens
78%
forest litter
78%
Fagus
56%
Picea abies
55%
mineral soils
50%
Quercus
49%
nitrates
45%
soil texture
32%
carbon nitrogen ratio
28%
conifers
27%
soil water
22%
soil
20%
fine-textured soils
20%
Larix kaempferi
18%
Quercus robur
16%
Fagus sylvatica
15%
stoichiometry
15%
karsts
15%
acid soils
14%
Denmark
14%
sandy soils
14%
soil types
13%
rhizosphere
11%
texture
10%
nitrogen
7%
Earth & Environmental Sciences
garden
85%
soil carbon
83%
forest floor
67%
nitrogen
48%
oak
45%
soil
34%
nitrate
33%
soil texture
25%
coniferous tree
23%
mineral
19%
soil water
18%
stoichiometry
12%
sandy soil
11%
rhizosphere
11%
karst
11%
litter
10%
soil type
10%
turnover
10%
texture
8%
effect
8%
rate
3%