Науки об окружающей среде
paleosol
100%
humus
56%
forest-steppe
51%
soil
41%
soil formation
40%
ash
37%
boreal forest
26%
humic acid
22%
Subboreal
22%
meadow
20%
paleoenvironment
19%
fine root
19%
asbestos
17%
dredger
17%
substrate
17%
natural forest
17%
archaeological site
15%
Chernozem
15%
mycorrhiza
14%
herb
14%
colonization
14%
gold
12%
habitat
12%
carbon
11%
magnetic susceptibility
10%
vegetation
10%
fulvic acid
9%
Pleistocene
9%
montane forest
9%
calcium
8%
sediment
8%
magnesium
8%
humidity
6%
comparison
6%
secondary forest
6%
woody plant
6%
symbiosis
6%
mixed forest
5%
shrub
5%
thermal power plant
5%
total organic carbon
5%
ecosystem
5%
limiting factor
5%
Биология и сельское хозяйство
ash dumps
60%
taiga
36%
humus horizons
34%
forest communities
33%
paleosolic soil types
28%
soil formation
26%
soil
24%
quarries
21%
humus
20%
asbestos
19%
forest soils
17%
mycorrhizae
16%
Russia
15%
nitrogen content
14%
Betula pendula
12%
vegetation
11%
carbon
10%
nitrogen fixation
10%
habitats
8%
humic acids
8%
Populus tremula
8%
Pinus sylvestris
7%
secondary forests
7%
mixed forests
7%
Siberia
7%
power plants
7%
herbs
6%
shrubs
6%
disturbed land
6%
Epipactis
6%
forest habitats
5%
herbaceous plants
5%
Calamagrostis
5%
sampling
5%
compacted soils
5%
woody plants
5%
meadows
5%
humidity
5%
