22.02.2013 Aufrufe

Nicola Arndt und Matthias Pohl - Neobiota

Nicola Arndt und Matthias Pohl - Neobiota

Nicola Arndt und Matthias Pohl - Neobiota

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Table 1: FAO Global Ecological Zoning - Look-up table for Russia.<br />

EZ<br />

Level 1<br />

EZ<br />

Level 2<br />

Domain FAO Ecological<br />

Zone<br />

Temperate<br />

Continental<br />

deciduous<br />

broad-leaved<br />

and mixed<br />

forests<br />

Climate<br />

(FAO Code)<br />

Continental<br />

(TeDc)<br />

Steppes Semi-arid<br />

(TeBSk)<br />

Deserts Arid<br />

(TeBWk)<br />

Corresponding<br />

regional<br />

vegetation class<br />

Broad-leaved<br />

forests<br />

Regional variants of vegetation<br />

Central European – oak, oak-hornbeam, beech<br />

forests<br />

East European – oak, oak-lime, ash, pine forests<br />

Trans-Volga – oak, oak-lime forests<br />

Far East – mixed broad-leaved – coniferous forests<br />

Forest steppes Caucasus – oak forest steppes<br />

East European – oak-lime forest steppes<br />

Trans-Volga – maple, oak-lime forest steppes<br />

West Siberian – birch-aspen forest-steppes<br />

Far East – oak forest-steppes<br />

Temperate<br />

steppes<br />

Temperate<br />

deserts<br />

3 Characteristics of the mountain vegetation<br />

Northern – herb-rich grass steppes<br />

(East-Europaen, Trans-Volga, West Siberia)<br />

Middle – (dry grass steppes) steppes<br />

(East-European, Trans-Volga - Kazakhstan, Dauria-<br />

Mongolian)<br />

Southern – desert (dwarf semishrub - grass<br />

steppes) steppes (Caspian Sea region, Trans-Volga<br />

- West Kazakhstan, East Kazakhstan)<br />

Northern – dwarf semishrub, psammophytic shrub<br />

deserts (Caspian Sea region; North Aral Sea region,<br />

Central North Turan)<br />

Middle – dwarf semishrub, petrophytic and<br />

psammophytic shrub deserts (West –North Turan,<br />

Central North Turan, East-North Turan)<br />

Southern – psammophytic shrub, dwarf semishrub<br />

deserts (West-South Turan)<br />

The integration of latitudinal and altitudinal zonal characteristics of vegetation distribution is typical<br />

for mountain areas. Phytogeographic research in mountainous regions is connected with the<br />

development of the concept of three-dimensional structure of the vegetation cover. Many researchers<br />

consider an altitudinal belt as a basic structural unit for mountain vegetation, and use climatic,<br />

landscape or land use characteristics for its delimitation. Each altitudinal belt has its own type of<br />

vegetation (combination of plant communities belonging to different formations). The main regional<br />

unit for the differentiation of mountain vegetation is an altitudinal zonality type which includes<br />

several altitudinal belts. The altitudinal zonality types are distinguished basing on the following<br />

principles:<br />

1. The altitudinal zonality type depends on zonal and regional features of mountain climate. For<br />

example, while the temperature factor determines bo<strong>und</strong>aries between altitudinal belts, humidity acts<br />

more locally and determines a diversification and change of plant formations within the belts.<br />

2. The altitudinal zonality type is characterized by an established morphological structure and<br />

sequential set of altitudinal belts, succeeding each other in a certain order along the mountain slope.<br />

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