Landbrug og biologi
forest litter
99%
soil properties
86%
nutrients
51%
soil solution
40%
mineralization
34%
soil organic matter
32%
Quercus
31%
loam soils
21%
infiltration (hydrology)
20%
ammonium nitrate
19%
Pseudotsuga menziesii
19%
coniferous forests
18%
sandy soils
18%
mycorrhizae
18%
carbon nitrogen ratio
18%
Fagus
18%
microbial activity
18%
Picea abies
17%
phosphates
12%
sampling
6%
Geo- og miljøvidenskab
forest floor
100%
immobilization
87%
soil property
76%
nutrient
56%
effect
20%
oak
19%
mineralization
14%
mycorrhiza
13%
organic matter
12%
soil
12%
ammonium nitrate
11%
accumulation rate
10%
sandy soil
9%
coniferous tree
9%
microbial activity
9%
infiltration
7%
trial
7%
phosphate
7%
sampling
5%
rate
3%