Publication Date:
2018-12-18
Description:
Under the conditions of climate change and intensive anthropogenic impact, the cenotic diversity of steppe ecosystems is changing. This paper presents results of a study of steppe communities in the arid climatic zone of Mongolia, in particular, a key site named “Mandalgovi”. A classification of the vegetation in this territory is carried out using a cluster analysis of the coenoflora. We have identified 2 groups of formations of desert steppes including 5 formations and 12 associations by using a dominant-determinant approach. A relationship of the plant communities with the relief, general moistening, soil fertility, and salinity has been revealed using methods of ecological ordination. A spatial-temporal distribution of NDVI obtained with Landsat data and VEGA-PRO satellite service is analyzed. An increase in the areas with low values of the NDVI index (from 0.0 to 0.1) characteristic of desert steppes is revealed. This is due to a decrease in the phytocenotic diversity, subs...
Print ISSN:
1755-1307
Electronic ISSN:
1755-1315
Topics:
Geography
,
Geosciences
,
Physics
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