| 林地面积空间抽样方法研究 |
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| 引用本文： | 张加龙,张明. 林地面积空间抽样方法研究[J]. 山东林业科技, 2011, 41(2): 14-17 |
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| 作者姓名： | 张加龙 张明 |
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| 作者单位： | 西南林业大学资源学院,云南昆明,650224 |
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| 基金项目： | 西南林业大学国家林业局森林经理学重点学科，西南山地森林资源保育与利用省部共建教育部重点实验室联合资助 |
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| 摘 要： | 论文采用空间简单随机抽样、空间分层抽样和三明治空间抽样模型,利用两种布样方式,随机和分层布样。通过对总体样本量和空间相关性的估算,进行样本分配和空间分层,结果表明：三明治空间抽样模型的抽样精度最高,其次是空间分层抽样、简单随机抽样;布样时采用分层抽样方式,将地理区域上分布的对象依照相似的属性值划分到不同的区域里,可以明显提高抽样调查效率及估计精度。
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| 关 键 词： | GIS 林地面积 空间抽样 三明治空间抽样模型 空间分层 |
The research of spatial sampling method of forest land area |
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| Zhang Jialong,Zhang Yue. The research of spatial sampling method of forest land area[J]. Journal of Shandong Forestry Science and Technology, 2011, 41(2): 14-17 |
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| Authors: | Zhang Jialong Zhang Yue |
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| Affiliation: | Zhang Jialong,Zhang Yue(Faculty of Natural Resources,Southwest Foestry University Kunming,650224) |
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| Abstract: | This paper has used the sampling model of simple random,spatial stratification and spatial sandwiches.Two method of random and stratification to set sampling has adopted.Then it estimated the overall sample size and spatial correlation and allocated the samples and did spatial stratification.The results showed that : the accuracy of the sandwich model of spatial sampling is the highest,followed by the space stratified sampling,simple random sampling;When setting the samples,using stratified sampling to dist... |
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| Keywords: | GIS forest land area spatial sampling Sandwich model of space sampling spatial stratification |
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