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干旱区典型流域土壤肥力空间变异特征

马媛;龚新梅;塔西甫拉提·特依拜;吕光辉   

  1. 新疆大学资源与环境科学学院干旱半干旱区可持续发展国际研究中心, 乌鲁木齐 830046
  • 收稿日期:2005-11-24 修回日期:2006-06-22 出版日期:2006-10-10 发布日期:2006-10-10

Spatial variation characteristics of soil fertility in typical basin of arid area

MA Yuan; GONG Xinmei;Tashpolat Tiyip;LV Guanghui   

  1. International Center for Desert Affairs Research for Sustainable Development in Semi-Arid and Arid Land, College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China
  • Received:2005-11-24 Revised:2006-06-22 Online:2006-10-10 Published:2006-10-10

摘要: 以新疆阜康三工河流域为研究对象,分析了不同样点的土壤肥力特征,利用地统计学和地理信息系统(GIS),研究流域土壤的空间异质性和格局。结果表明,土壤肥力要素的变异系数在5.00%~66.77%,各土壤肥力质量要素接近正态分布;8种土壤肥力要素均存在空间变异结构特征;土壤有机质与氮素空间变化趋势相似,且相关性极显著;速效磷和速效钾的空间格局相似性较大;人类干预极大影响土壤空间格局。

关键词: 外生菌根菌, 资源, 生态分布, 松树林, 黄山地区

Abstract: Taking the Sangong River basin in Fukang County of Xinjiang as an example, this paper studied the characteristics of soil fertility at different sampling sites,and analyzed its spatial heterogeneity and pattern with the help of geostatistics and geographic information system. The results showed that the variation coefficients of major soil fertility indexes ranged from 5.00% to 66.77%, with an approximately normal distribution and characterized as space variation structure. Soil organic matter and total N had a similar spatial variation tendency, and a significant correlation. Soil available P and K also had a similar spatial pattern. The soil spatial pattern was deeply affected by human activities.

Key words: Ectomyrrhizal fungi, Resource, Ecological distribution, Pine forest, Huangshan Mountain district