Mycorrhizal roots are sometimes found in humus layers of the forest floor.

The presence of this humus layer is essential for egg laying.

This plant is threatened by damage and destruction to the humus layer in which it grows.

Sand forests have a thick humus layer due to the extremely low decomposition rates.

Soil is well developed in the forest as suggested by the thick humus layers, rich diversity of large trees and animals that live there.

However, removal of the insulating humus layer allowed a significant summer soil warming in the furrows.

The forest floor has a thick, rich humus layer, and the area has many exposed limestone rocks.

Storms that damage the forest canopy can cause a reduction in the humus layer and ground moisture level, adding to the stress on the plants.

Its litter contains significant amounts of nitrogen and decomposes rapidly, forming a deep humus layer.

The brown upper humus layers have three percent organic matter, increasing to eight percent in the southern-most islands.

Broadcast burning is used on sites with high slash loads, deep soils ad a thick litter or humus layer.

When full-grown, the larvae drop to the ground and construct pupation cells in the humus layer of the soil.

V. asiaticus is a saprotrophic fungus that was originally described as growing on the ground, in the humus layer.

Badger diggings also improve the soil through aeration, improving water flow and promoting the development of the humus layer.

In general most of their fruit bodies occur within 10 cm of the soil surface, especially in a zone immediately below the humus layer.

Air and soil (humus layer and 5 cm depth of mineral soil) temperatures were measured continuously every second hour.

During most of the sampling time, the frost hardiness of the roots in the humus layer was greater than in the mineral soil.

They live in old-growth montane and mossy forest, where there are thick leaf litters and humus layers.

The spruce-fir needles, when shed, can take up to ten years to decompose, and create a relatively acidic humus layer known as "mor."

Heavy, interlaced branches bore rich humus layers on top, where whole communities of epiphytes lived out cycle after cycle, never touching the ground.

The fire traces found on the sample plots were fire scars on living or dead trees or charcoal fragments in the humus layer.

Correlations suggest that canopy trees also affected seedlings indirectly through their dominating effect on the properties of understory vegetation and humus layer.

In those that are dominated by black spruce, the burning of the thick humus layer produces ashes which allow the return of nutrients to the soil.

Particularly intense and long lasting forest fires can cause serious soil damage by slow combustion of organic material and humus layers in the soil.

Paphiopedilum species naturally occur among humus layers as terrestrials on the forest floor, while a few are true epiphytes and some are lithophytes.