scholarly journals Classification of High-Mountain Vegetation Communities within a Diverse Giant Mountains Ecosystem Using Airborne APEX Hyperspectral Imagery

2018 ◽  
Vol 10 (4) ◽  
pp. 570 ◽  
Author(s):  
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2015 ◽  
pp. 96-124
Author(s):  
E. G. Zibzeev ◽  
T. A. Nedovesova

The mountain systems are characterized by diverse ecological conditions (climate, geomorphological, soil, etc.). The wide spectrum of environmental conditions entails a rich diversity of plant communities growing on the small territory and determines the different flora and vegetation geneses. The uniqueness of floristic and coenotic diversities of the high-mountain vegetation of the south of Western Altai (Ivanovskiy, Prokhodnoi, and Rossypnoi Ranges) are associated with the effect of two climate-forcing factors such as the westerly humid air mass and dry warm airflow from the inner Kazakhstan regions. The paper summarizes the data on coenotic diversity (Zibzeev, 2010, 2012) and gives a syntaxonomic analysis of the high-mountain vege­tation in the Ivanovskii, Prokhodnoi, and Rossypnoi Ranges (Western Altai, Kazakhstan). The classification of plant communities was carried out using the Braun-Blanquet approach (Westhoff, van der Maarel, 1973). The relevés records were stored in the TURBOVEG database and classified by ­TWINSPAN (Hill 1979).


2006 ◽  
pp. 3-19 ◽  
Author(s):  
E. G. Zibzeev ◽  
T. S. Chernicova

The paper presents an ecological-historical classification of high-mountain vegetation of the Oya Ridge eastern part and gives an ecological and phytocoenological description of the distinguished vegetation units which refer to 19 associations, 16 for­mations, 11 floristic-coenotic types, and 3 ecological-historical series. The climate of the study area is humid and moderately warm, with its precipitation and average July air temperature of 1120 mm p/a and 12.3 °C, respectively. As follows from the climatic peculiarities and the observed set of vegetation units, the high-mountain vegetation of the Oya Ridge is typical of humid highland areas of the Altai-Sayan mountain province. The complexity of mountain topography and site set results in a high level of community diversity as well as in complex spatial organization of the plant cover. Communities dominated by Aconitum sajanense, the Western Sayan Mts. endemic, have been first described as a separate formation, typical of the Oya Ridge. The phytocoenological optimum of this plant is observed the lower part of the subalpine belt, under the increased humidity conditions. The monkshood stands are usually formed in gentle slopes of various exposure. Due to vegetative mobility, the abundance of A. sajanense increases with an increase of the level of anthropogenic degradation of the plant cover.


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