| 半方差函数与Moran’s I在土壤微量元素空间分布研究中的应用——以寿光市为例 |
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| 引用本文： | 刘庆,夏江宝,谢文军.半方差函数与Moran’s I在土壤微量元素空间分布研究中的应用——以寿光市为例[J].武汉大学学报(信息科学版),2011,36(9):1129-1133. |
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| 作者姓名： | 刘庆 夏江宝 谢文军 |
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| 作者单位： | 滨州学院山东省黄河三角洲生态环境重点实验室,滨州市黄河五路391号,256603 |
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| 基金项目： | 山东省自然科学基金资助项目(2009ZRA16024); 山东省教育厅科技发展计划资助项目(J10LC62) |
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| 摘 要： | 利用半方差函数与Moran’s I两种空间分析方法,研究了山东省寿光市土壤中微量元素的空间分布特征,以探讨不同空间分析方法的差异性与准确性。结果表明,无论表层土壤还是深层土壤,半方差函数分析得到的土壤微量元素的空间相关距离大约为20~60 km,而空间自相关图获得的正自相关距离为20~25km,负自相关距离为25~55 km。除深层土壤中的Zn元素外,其他元素均达到了显著的自相关水平。空间自相关方法对土壤微量元素空间相关性的判断要优于半方差函数法。
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| 关 键 词： | 微量元素 空间分布 半方差函数 空间自相关 土壤 |
Application of Semi-variogram and Moran's I to Spatial Distribution of Trace Elements in Soil:a Case Study in Shouguang County |
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| LIU Qing XIA Jiangbao XIE Wenjun.Application of Semi-variogram and Moran's I to Spatial Distribution of Trace Elements in Soil:a Case Study in Shouguang County[J].Geomatics and Information Science of Wuhan University,2011,36(9):1129-1133. |
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| Authors: | LIU Qing XIA Jiangbao XIE Wenjun |
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| Institution: | LIU Qing1 XIA Jiangbao1 XIE Wenjun1(1 Shandong Province Key Laboratory of Eco-Environmental Science for Yellow River Delta,Binzhou University,391 Huanghewu Road,Binzhou 256603,China) |
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| Abstract: | The spatial distribution of trace elements in Shouguang soil was studied though semi-variogram analysis and Moran's I methods to research the difference and veracity of different spatial analysis methods.The results show that there is good spatial structure of trace elements in Shouguang soils,and the spatial correlation degree is higher in surface soil than that in deep soil.Either in surface soil or in deep soil,the spatial correlation distance of the elements obtained from the semi-variogram analysis is ... |
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| Keywords: | trace elements spatial distribution semi-variogram spatial autocorrelation soil |
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