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中国沙漠 ›› 1996, Vol. 11 ›› Issue (2): 161-165.

• 论文 • 上一篇    下一篇

塔克拉玛干沙漠土壤沙化发生条件及对土壤性状影响

季方, 樊自立, 赵贵海   

  1. 中国科学院新疆生物土壤沙漠研究所, 乌鲁木齐 830011
  • 收稿日期:1995-04-28 修回日期:1996-01-03 出版日期:1996-06-20 发布日期:1996-06-20

CENETIC CONDITIONS OF SOIL SANDIFICAION AND ITS IMPACTS ON SOIL CHARACTERISTICS IN THE TAKLIMAKAN DESERT

Ji Fang, Fan Zili, Zhao Guihai   

  1. Xinjian Institute of Biology, Pedology and Desert Research, Chinese Academy of Sciences, Urumqi 830011
  • Received:1995-04-28 Revised:1996-01-03 Online:1996-06-20 Published:1996-06-20

摘要: 土壤沙化是土壤发育逆向演替恢复母质特性的过程, 土壤沙化发生条件可以概括为4个方面: 土壤干旱是沙化的根本条件、植被衰败为风沙活动创造了条件、土壤质地轻是沙化物质基础、大风和频繁起沙风是沙化的动力条件。土壤沙化结果使土壤粗粒化、贫瘠化, 同时也使土壤含盐量降低。

关键词: 塔克拉玛干沙漠, 土壤沙化, 性状变化

Abstract: Soil sandification refers to the process that non-aeolian sandy soils degraded into aeolian sandy soils in arid area. Genetic conditions of soil sandification may be summarized into four aspects as follows: First, soil drought is the key factor of soil sandification; Second, vegetation degradation reduces the sand-control and check-wind capacities; Third, light texture of soil forms the material basis of soil sandification; Fourth, gale and winds which blow out samd grains are the dynamic factor of soil sandification. Soil sandification makes grain size coarse, soil fertility poor, and total salt content reductive.

Key words: Taklimakan Desert, Soil sandification, Change of soil character