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草业科学 2013

取样尺度对荒漠草原土壤水分空间异质性的影响

, PP. 1698-1703

张宇,黄琛,赵萌莉

Keywords: 取样尺度,荒漠草原,土壤水分,空间异质性

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Abstract:

？本研究运用地统计分析和克里格插值法,以不同取样尺度对四子王旗荒漠草原进行了土壤水分的空间异质性分析。结果表明,随着取样尺度增加,土壤水分空间异质性程度先增加,后略减小并趋于平稳;荒漠草原土壤水分空间异质性受到样地微地形与灌木丛分布影响;研究荒漠草原土壤水分空间异质性取样的适宜尺度为(4～6)m×(8～12)m。

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