Agriculture & Biology
hardwood forests
100%
forest litter
90%
earthworms
82%
nutrient availability
81%
organic horizons
45%
A horizons
29%
Lumbricus rubellus
29%
Lumbricus terrestris
26%
Aquilegia canadensis
19%
Carex pensylvanica
19%
Aralia
16%
Dendrobaena
15%
soil horizons
13%
Acer saccharum
13%
nutrients
11%
Acer
11%
forest soils
11%
forest ecosystems
11%
greenhouse experimentation
10%
understory
9%
soil properties
9%
phytomass
9%
plant communities
9%
soil quality
9%
biomass
6%
Earth & Environmental Sciences
forest floor
91%
earthworm
90%
nutrient availability
89%
mesocosm
88%
effect
18%
nutrient
12%
biomass
12%
soil horizon
11%
ecosystem process
10%
understory
10%
soil condition
10%
forest soil
9%
forest ecosystem
9%
plant community
9%
community composition
9%
plant species
8%
soil property
8%
field study
8%
loss
5%