moss layer


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moss layer

n
(Biology) See layer2
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scoparium, Hylocomium splendens and Pleurozium schreberi in the moss layer.
It has been reported that the recovery of moss layer is much slower and it takes more than 10 years (Marozas et al.
Permafrost degradation due to the removal of the insulating moss layer will cause changes of an even larger magnitude.
This shade-tolerance means that the moss layer is thick and lush in most boreal forests.
In contrast, where the trees are dense and the soil is in deep shade, there are few herbaceous plants and shrubs, and the moss layer is very well developed.
flexuosa were also more often present within the moss layer than were rhizomes of the Vaccinium species (rhizomes occurred in the moss layer at 77% of all sampled places where D.
established best in FSC-2 to 4, where the original moss layer was completely consumed by the fire [ILLUSTRATION FOR FIGURES 9 AND 10 OMITTED].
In the understory of the boreal forest, where the moss layer in a pine-spruce forest, for example, may be so homogeneous that it is what characterizes the forest for large areas (for example, the forest with an underlayer of Polytrichum commune), but in tundra ecosystems it is possible to find dozens of moss species growing together in a single square meter.
Depending on environmental conditions, the yernik may adopt a semiprostrate growth form (up to 28 or 31 in [70 or 80 cm] in height), or a procumbent growth form (12-14 in [30-35 cm] tall) or a completely creeping growth form that roots in the moss layer in peat bogs (4-12 in [10-30 cm] above the mass of sphagnum).
The soft layer of mosses houses springtails and spiders, acarids, earthworms and beetles as well as the creeping stems of the prostrate shrubs that find shelter in the moss layer from the freezing wind and from the jaws of herbivores.
The soil is often dense and compact, as well as colder and dryer, under the moss layer, which thus to some extent reinforces the permafrost.