摘要
利用地统计学原理与GIS技术,对古尔班通古特沙漠南缘梭梭林立地土壤特征及其空间变异性进行了研究。结果表明:研究区梭梭林立地土壤具有总盐含量普遍小于盐化指标(<5 g/kg)、总碱度大于碱土指标(>2.6 cmol/kg)、pH值均值大于9.0的典型碱土特征;土壤总盐、pH值和总碱度具有强烈的空间相关性,有机质和速效钾为中等强度的空间相关性;通过插值图分析,梭梭生长的区域总碱度低于无梭梭生长的区域,而梭梭周围土壤速效钾、有机质含量高于其它区域。
A study of soil properties and spatial variability of Haloxylon ammodendron in the south of Gurbantunggur desert was carried out by using Geostatistics principle and GIS technology. The results indicated that the soil total salt at the research area was generally less than the saline target （〈5 g/kg）, the total alkalinity was bigger than alkali soil target （〉2.6 cmol/kg） ,and the average value of pH was more than 9.0;The soil total salt, the pH and the total alkalinity had the intense spatial relevance, while the organic matter and the available K had the medium intensity spatial relevance ; The interpolation chart analysis indicated that the soil total alkalinity at the Haloxylon ammodendron area was lower than that at the bare area,while the available K and organic matter around the haloxylon ammodendron soil were higher than those of other regions.
出处
《新疆农业大学学报》
CAS
2007年第2期33-37,共5页
Journal of Xinjiang Agricultural University
基金
国家自然科学基金项目(40561007)
新疆维吾尔自治区土壤学重点学科基金项目
关键词
北疆
梭梭林
碱土
空间变异
the north of Xinjiang
Haloxylon ammodendron
alkali soil
spatial variability
作者简介
通讯作者：盛建东，E-mail：sjd_2004@126．com
