首页> 中文期刊> 《农业科学与技术(英文版)》 >Spatial Variability of Salt Ions in Soils in Oasis of Delta of Weigan River-Kuqa River in Different Seasons

Spatial Variability of Salt Ions in Soils in Oasis of Delta of Weigan River-Kuqa River in Different Seasons

         

摘要

Abstract [Objective] The aim was to research the spatial variability of salts' ions in soils of oases of Weigan River-Kuqa River to explore spatial correlation among soil ions and effects of seasonal changes on distribution of eight ions in soils. [Method] Based on soil salinizaiton, temporal and spatial distributions of eight ions in surface soils were researched and distribution maps were drawn with the help of classical statistics and geostatistics. [Result] All contents of salt ions were proved in consistent with normal distribution by K-S test, and variability of the ions changed with season, for example, variability of ions in soils in October was higher than that in April, which might be caused by little rainfall and high evaporation in October. It can be concluded from semivariance analysis that salt ions were all of high spatial autocorrelation. In addition, it can be concluded from spatial distribution that spatial structures of most ions are reasonable, except Ca2+ and Mg2' in soils collected in April of 2010 and Mg2+ in October of 2010, which were more suitable for linear model, and chloride-sulfate dominated in salinized soils in the researching area. [Conclusion] The research laid foundation for partition, improvement and use of salin- ized soils in delta of Weigan River-Kuqa River.

著录项

  • 来源
    《农业科学与技术(英文版)》 |2012年第7期|1473-1477|共5页
  • 作者单位

    College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;

    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China;

    College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;

    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China;

    College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;

    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China;

    College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;

    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China;

    College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;

    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China;

    College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;

    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 农业科学;
  • 关键词

    Key; words; Spatial; variability; Geostatistics; Kriging; method;

    机译:关键词词空间变异地统计学Kriging方法;
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