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中国沙漠 ›› 2010, Vol. 30 ›› Issue (1): 120-127.

• 生物土壤与生态 • 上一篇    下一篇

博尔塔拉河、精河流域绿洲土壤空间异质性研究

毋兆鹏, 金海龙   

  1. 新疆师范大学 地理科学与旅游学院 地理系, 新疆 乌鲁木齐 830054
  • 收稿日期:2008-10-13 修回日期:2009-08-10 出版日期:2010-01-20 发布日期:2010-01-20

Heterogeneity of Oasis Soil in Bohe and Jinghe River Basins of Xinjiang

WU Zhao-peng, JIN Hai-long   

  1. Department of Geography, Geography and Tourism Science College, Xinjiang Normal University, Urumqi 830054, China
  • Received:2008-10-13 Revised:2009-08-10 Online:2010-01-20 Published:2010-01-20

摘要: 对博尔塔拉河、精河流域绿洲土壤的理化性状进行了分析,认为该区土壤肥力整体水平并不高,并且较20 a前普遍有所下降。之后,用Kriging进行插值,对研究区土壤综合肥力分布的规律进行了研究,结果表明,东南方向上土壤的综合肥力较高,西北方向上土壤的综合肥力较低。然后,利用灰色方法找寻了导致研究区土壤异质性的驱动因子,年蒸发量与灾害性天气日数是首要的自然驱动力,耕地面积和化肥施用量则是人文驱动力,并且以人文因素驱动作用占主导。

关键词: 博尔塔拉河, 精河流域, 绿洲, 土壤异质性, 灰色分析, 驱动力

Abstract:

The increasing human activities in Bohe and Jinghe river basins have severely affected the local eco-environment and social development. The authors firstly analyze the soil physical-chemical properties, including pH value, nutrients, alkali-hydrolyzed nitrogen, available phosphorus, rapidly-available kalium and salt contents. The results indicated that soil fertility is generally lower than that of 20 years ago due to large soil particles, low soil organic matter and high level alkaline. Secondly, study on law of soil fertility distribution with Kriging interpolation showed that soil fertility in southeast is better than in northwest. Finally, it was found out by grey correlation analysis that the main driving factors to soil heterogeneity include natural factors annual evapotranspiration and disaster weather days, and human factors cultivated land area and chemical fertilizer wastage, and the human factors are predominant.

Key words: Bohe and Jinghe river basins, oasis, soil heterogeneity, grey analysis, driving factors

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