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森林资源二类调查村镇林样户抽样组织方法研究

Study on the sampling organizing method of the country and town forest in the forest management inventory

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【Author】 HE Rui_zhen~1,GUO Bao_sheng~1,LI Ruo_ning~1,ZHANG Jing_dong~2,HAN Yan_ying~1,ZHANG Zhong_yi~1(1.Forestry and Horticulture College of Henan Agricultural University,Zhengzhou 450002,China;2. Zhengzhou Mapping and Surveying School,Zhengzhou 450052,China)

【机构】河南农业大学；郑州测绘学校；河南农业大学河南郑州450002；河南郑州450002；河南郑州450052；河南郑州450002；

【摘要】利用郑州市中牟县森林资源二类调查的49个村、196户林木蓄积资料,采用简单随机抽样、两阶抽样、事后分层抽样3种样本组织方法分别对中牟县村镇林蓄积总量进行估计,通过对比发现事后分层抽样优于其它两种方法,估计精度为0 8986,具有较高的估计效率.更多还原

【Abstract】 Based on the data of the Zhongmo county of the forestry management inventory,by means of simple random sampling.two ranks sampling and layer sampling,a study was conducted on the estimation of the country and town stand volume sum of Zhongmo county.By contreest,it was found that the layer sampling after the event was better than the other two.Its estimated resolution can reach 0.898 6 and has a relatively high estimated efficiency更多还原

【关键词】森林资源二类调查；简单随机抽样；两阶抽样；事后分层抽样；估计效率；
【Key words】 forest management inventory； simple random sampling； two ranks sampling； layer sampling after the event； estimated efficiency；

【基金】河南省科技攻关项目(991200130)

【文献出处】河南农业大学学报 ,Journal of Henan Agricultural University , 编辑部邮箱 ,2004年01期

【分类号】S757.2
【下载频次】65

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