| 基于GIS和地统计学的地位指数估值研究 |
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| 引用本文： | 刘永霞,冯仲科,姚山.基于GIS和地统计学的地位指数估值研究[J].北京林业大学学报,2005(Z2). |
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| 作者姓名： | 刘永霞 冯仲科 姚山 |
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| 基金项目： | 北京市自然科学基金项目(4041002)，国家自然科学基金项目(90302014)，“863”国家高新技术项目(2003AA245030) |
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| 摘 要： | 为得到便于查询分析的区域地位指数分布图,基于地理信息系统(GIS)和地统计学,以地理信息系统软件Arcview为平台,采用其空间分析模块中的Kriging插值方法研究了地位指数估值.研究表明,GIS和地统计学相结合,通过抽样得到的有限数据,能够快速准确的估算缺失数据、获取整个林区森林地位指数分布图,并能从地图中得到相应的地理位置,直观地查看结果,进行相应的分析.地统计学技术成功地应用于估计地位指数,其估计值是无偏的,并且具有最小方差.
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| 关 键 词： | Kriging插值 地理信息系统(GIS) 地统计学技术 地位指数 |
Site index estimation based on geostatisics combined with GIS. |
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| Abstract: | In order to obtain the territorial site index distribution map which is advantageous for the inquiry and analysis,geoestatisitics combined with GIS was applied to estimate site index.The research based on Kriging method was done by Arcview space analysis modular.The research shows that GIS,with the combination of geostatisitics(Kriging),by using the limited sampling data,can estimate the lack data accurately and quickly and obtain the entire forest site index distribution map.With this distribution map people can get corresponding location,look over results visually and carry out corresponding analysis.Geostatisitics technique was applied to estimate site index successfully,its estimated value had no deflection and had minimum variance. |
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| Keywords: | Kriging method GIS geostatisitics technique site index |
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