| 土壤物理性状空间变异性研究 |
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| 引用本文： | 王改兰,池宝亮,黄学芳,王东峰. 土壤物理性状空间变异性研究[J]. 中国农业大学学报, 1997, 0(Z1) |
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| 作者姓名： | 王改兰 池宝亮 黄学芳 王东峰 |
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| 作者单位： | 山西农科院旱地农业研究中心;030031; |
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| 摘 要： | 根据64个样点的测定数据,应用经典统计分析方法,探讨了褐土容重和含水量的空间变异性,并给出了不同置信水平和不同精度要求下两者的合理取样数目。在此基础上,应用半方差分析方法,进一步讨论了容重和含水量的空间变异结构和半方差函数模型。结果表明,容重和含水量的空间变异都是有结构的,容重的相关域为13m,含水量的相关域为10m。两者的半方差函数均可用球函数模型拟合。
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| 关 键 词： | 容重 含水量 空间变异性 |
Research on the Spatial Variability of Soil Physical Characteristics |
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| Wang Gailan Chi Baoliang Huang Xuefang Wang Dongfeng. Research on the Spatial Variability of Soil Physical Characteristics[J]. Journal of China Agricultural University, 1997, 0(Z1) |
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| Authors: | Wang Gailan Chi Baoliang Huang Xuefang Wang Dongfeng |
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| Affiliation: | Wang Gailan Chi Baoliang Huang Xuefang Wang Dongfeng (Arid Farming Research Center of Shanxi Academy of Agriculttural Sciences 030031) |
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| Abstract: | According to the data from 64 polit projects,the spatial variability of bulk den- sity and water content of drab soil were discussed and the rational sampling number for soil parameters was given under different exactitude through the classic statictis analysis. Based on these,the spatial variability and semi-variogram function model of bulk density and water content were discussed through semivariogram analysis method,and resulted in that the spatial variability of bulk density and water content are all wi... |
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| Keywords: | bulk density water content spatial variability |
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