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首页> 外文期刊>Eurasian Soil Science >Climate and soil salinity in the deserts of Central Asia.
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Climate and soil salinity in the deserts of Central Asia.

机译:中亚沙漠的气候和土壤盐分。

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摘要

A comparative analysis of climatic and soil salinity characteristics of the deserts of Central Asia, including deserts of the Turan Depression, the Gobi Desert, and deserts of the Dzungar and Tarim depressions was performed. The climatic characteristics - the degree of aridity, the degree of continentality, and the amount and regime of precipitation - are different in these deserts. No direct relationships between the areas occupied by the automorphic salt-affected soils and the aridity of the climate are observed in the studied regions. In the automorphic landscapes of Asian deserts, the degree and chemistry of the soil salinization and the distribution of salt-affected soils are controlled by the history of the particular territories rather than by their modern climatic conditions. The presence and properties of the salt-bearing rocks and the eolian migration of salts play the most significant role. The deficit of moisture in the modern climate favors the preservation of salt accumulations in places of their origin. The specific features of the climate, including the regime of precipitation, affect the redistribution of salts in the profiles of automorphic salt-affected soils. An increase in the degree of climatic continentality is accompanied by the decrease in the intensity of weathering and initial accumulation of salts. A different situation is observed in the soils of hydromorphic desert landscapes, in which the degree of salinity of the surface horizons and the area occupied by salt-affected soils are directly influenced by the modern climatic conditions.Notes Translated from Pochvovedenie (2013) 7, 771-777 (Ru).
机译:对中亚沙漠的气候和土壤盐分特征进行了比较分析,其中包括图兰De陷,戈壁滩、,加尔和塔里木depression陷的沙漠。这些沙漠的气候特征-干旱程度,大陆性程度以及降水量和降水状况-是不同的。在研究区域中,未观察到自交盐影响的土壤所占面积与气候干旱之间的直接关系。在亚洲沙漠的自养景观中,土壤盐渍化的程度和化学性质以及受盐影响的土壤的分布受特定领土的历史控制,而不是受其现代气候条件的控制。含盐岩石的存在和性质以及盐的风移起着最重要的作用。在现代气候中,水分的缺乏有利于保存盐原产地的积累。气候的特定特征(包括降水制度)会影响盐在自养盐土壤中的分布。气候大陆性程度的增加伴随着风化强度的降低和盐的初始积累。在水化沙漠景观的土壤中观察到了不同的情况,现代气候条件直接影响了表层的盐度和受盐影响的土壤所占的面积。注释译自Pochvovedenie(2013)7, 771-777(Ru)。

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