| 环境空间结构分析中模拟数据集的引入 |
| 摘要点击 760 全文点击 1357 投稿时间：1998-12-24 |
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| 中文关键词 环境空间分析 空间结构分析 模拟数据集 采样方法 |
| 英文关键词 environmental spatial analysis spatial structure analysis simulated data sets sampling designs |
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| 中文摘要 |
| 利用对高程数据的数学变换建立了包含10000 个数据点的模拟土壤微量元素含量基线值大型数据集,并在此基础上进行污染模型叠加产生污染影响大型数据集.以之为基础进行模拟采样,研究了采样方法对空间结构表达的影响.通过对实验半变异函数的比较发现了各采样方法不同的特点和空间结构表达效果。 |
| 英文摘要 |
| Large data sets of baseline trace metal contents in soil,each composed of 10000 spots,were simulated by mathematical transformation with elevation data.Pollution models were added to these data to simulate pollution data sets.Based on these data sets,different sampling designs were conducted and their efficiencies in interpreting spatial continuity were studied.By comparison of the sample semi-variograms,characteristics and influences on spatial analysis of each sampling design were discovered. |
