The partially decayed organic matter on the forest floor.
The organic layer on top of mineral soil consisting of fallen leaves and other decomposing vegetation. Thick layers of duff are often found on the floors of undisturbed forests.
Forest litter and other organic debris in various stages of decomposition on top of the mineral soil; typical of coniferous forests in cool climates, where rate of decomposition is slow and where litter accumulation exceeds decay. | | | | E-F | | | I-K | | | N-O | | | | T-X
The accumulation of needles, leaves, and decaying matter on the forest floor.
Matted layer of decaying organic plant matter (leaves, needles, etc.) of forested soils. It is highly absorbent and quickly erodes under traffic.
Ground cover consisting of organic matter such as needles, leaves, twigs, etc.
a layer of soil, approximately parallel to the soil surface, differing in properties and characteristics from adjacent layers below or above it
Partly decayed organic matter on the forest floor.
organic layer of the soil consisting of dead and decaying leaves, branches, wood, and other plant parts.
The partially decomposed organic matter (litter of leaves, flowers, and fruits) beneath plants, as on a forest floor.
Matted, partly decomposed leaves, twigs, and bark beneath trees and brush.
The partially decomposed organic material of the forest floor beneath the litter of freshly fallen twigs, needles and leaves.
The layer of decomposing organic materials lying below the litter layer of freshly fallen twigs, needles, and leaves and immediately above the mineral soil.
the layer of partially and fully decomposed organic materials lying below the litter and immediately above the mineral soil. It corresponds to the fermentation (F) and humus (H) layers of the forest floor. When moss is present, the top of the duff is just below the green portion of the moss.
A soil layer dominated by organic material derived from the decomposition of plant and animal litter and deposited on either an organic or a mineral surface. This layer is distinguished from the litter layer in that the original organic material has undergone sufficient decomposition that the source of this material (e.g., individual plant parts) can no longer be identified.
A layer of decomposing organic matter beneath fresh needles and leaves
decaying matter in a forest
decayin' matta' in some fo'est
A build-up of organic material, such as dead grass, leaves, conifer needles, and other plant parts.
Layer of decaying forest litter consisting of organics such as needles, leaves, plant and tree materials covering the mineral soil. Duff can smolder for days after a fire. Extinguishing smoldering duff is key to successful mopup operations.
decayin' matter in a forest
The layer of decomposing organic materials lying below the litter layer and immediately above the mineral soil. It is comprised of the Fermentation (F) and Humus (H) layers of the forest floor.
The vegetative matter, such as leaves, twigs, dead logs, etc., that covers the ground in the forest; unconsolidated decomposing and partially decomposed organic material immediately under a layer of leaf litter. Duff forms a layer about 5 cm (2 in.) thick that overlies the soil of a forest floor. Its thermal insulation is an important factor in the formation of permafrost, and the quality and moisture content of duff is significant in considerations of forest fire hazard ( fire weather).