avalanche forest
biodiversity
botany
commercial forests
commercial timberland
deadwood
earth
earth crumb
earth crust
forest
forest area
forest soil
forest vegetation
forestry
humid
humus
humus layer
industrial forest
living space
mossy
musty
nutrient exchange
plant
plant ecology
plant species
plants
soil
soil conditions
soil culture
species
thicket
tree
tree population
trees
undergrowth
useful area
useful land
vegetation
vegetation cover
water balance
wet
wetland
wood
woodland
woods