IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Alternative TitleStudy of the Spatial Heterogeneity of Soil Nutrients of Typical Landscape in Alpine Meadow Regions
龙训建1; 钱鞠1; 张春敏1; 王根绪1,2; 李元寿2
Corresponding Author龙训建
Source Publication冰川冻土


Other Abstract

The spatial heterogeneity of soil nutri ents including organic matter(OM), total nitrogen (TN) and total phosphorus(TP)in a typical minor watershed of alpine meadow was studied using GIS technical and Kriging interpolation method. Fifty four samples in ten paths were collected and analyzed. The best simulation model of these soil nutrients is spherical model. The soil spatial heterogeneity in typical valley was graded as TN〉OM〉TP; soil TN has the strongest spatial heterogeneity with the nugget coefficient (C_0/(C_0 +C)) of 23.5%; spatial heterogeneity of OM and TP has moderate variability with the nugget coefficient (C_0/(C_0+C))of 35.9% and 41.7%. And the spatial scale of soil OM, TN and TP were around 2133 m, 1412 m and 1 239 m, respectively. The Kriging interpolation map and semi-variance function could express the spatial variability and its level. In this study the model which can describe soil nutrients distribution best is semi-variance model. Variability of soil nutrients is mainly influenced by altitude, landform, gradient, vegetation, root distribution and etc.

Keyword高寒草甸 土壤养分 空间变异 Kriging插值
Subject AreaS812.2
Indexed ByCSCD ; 北大中文核心
Funding Organization国家自然科学基金项目(90511003) ; 中国科学院百人计划项目(2004年)
Citation statistics
Cited Times:14[CSCD]   [CSCD Record]
Document Type期刊论文
Recommended Citation
GB/T 7714
龙训建,钱鞠,张春敏,等. 高寒草甸区典型景观单元土壤养分空间变异性研究[J]. 冰川冻土,2008,30(1):139-146.
APA 龙训建,钱鞠,张春敏,王根绪,&李元寿.(2008).高寒草甸区典型景观单元土壤养分空间变异性研究.冰川冻土,30(1),139-146.
MLA 龙训建,et al."高寒草甸区典型景观单元土壤养分空间变异性研究".冰川冻土 30.1(2008):139-146.
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