taiga

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taiga

the zone of forest vegetation lying on wet soils between the tundra in the north and steppe hardwood forest in the south, that encircles the northern hemisphere.
References in periodicals archive ?
In many taiga ecosystems, it has been shown that almost the only place where tree seeds germinate successfully is on fallen logs and trunks, as leaf litter prevents successful germination elsewhere.
These animals are scarce in the taiga, however, and their contribution to the formation of mosaics is almost irrelevant.
Most of the plant biomass, 60-80%, is in the trunks of the trees; mature stands in the central and southern taiga may yield 212-265 yd3/acre (400-500 m3/ha).
Animal biomass in the European taiga increases from 89 lb/acre (100 kg/ha) in the northern subzone to 268 lb/acre (300 kg/ha) in the southern subzone.
In the northern European and western Siberian taiga, the annual growth of the plant biomass is 1.
Because most of the plants in boreal forests are evergreen, photosynthesis can take place even during the colder periods of the year, despite the harsh climatic conditions, and this is why the level of production in the taiga is very high.
The vertebrates of the taiga are mainly herbivores.
Taiga invertebrates can barely digest recently fallen leaves, but they become much easier to digest once rain has washed out a part of the phenolic substances they contain.
One of the most distinctive features of the taiga is the large number of saprophytic and semisaprophytic plants that grow there.
In the taiga, dry rot is mainly due to species of Coniophora, Coriolus, Gloeophyllum, etc.
Fungi are important in taiga ecosystems because in addition to decomposing organic matter, they perform another vital function: forming mycorrhizae (a symbiotic relationship) with the roots of vascular plants.
Taiga soils are nutrient-poor, and the ions needed by plants often cannot be taken up because they are unavailable, as they are in forms that are immobile.