• 中国中文核心期刊
  • 中国科学引文数据库(CSCD)核心库来源期刊
  • 中国科技论文统计源期刊(CJCR)
  • 第二届国家期刊奖提名奖

Citation:

Study on Efficiency of Two-Stage Cluster Sampling in Forest Inventory

  • Received Date: 1994-12-07
  • According to the special feature that two-stage cluster sampling has the same efficiency as the systematic sampling or simple random sampling when there are no differences among clusters,the term of error expansion factor is presented in this paper. Besides the correlation coefficient for critical state,when efficiency coefficient equals to l,is formulated,which provide important reference of implementing cluster sampling design and sampling efficiency assessment.In addition,the relationship between efficiency of two-stage cluster sampling and distance between plots in a cluster is further studied with an example demonstrated in detail.Finally,the efficiency assessment of two-stage cluster sampling in forest inventory is also discussed.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article views(2589) PDF downloads(655) Cited by()

Proportional views

Study on Efficiency of Two-Stage Cluster Sampling in Forest Inventory

  • 1. South-Central Forest Inventory & Planning Institute Changsha 410014

Abstract: According to the special feature that two-stage cluster sampling has the same efficiency as the systematic sampling or simple random sampling when there are no differences among clusters,the term of error expansion factor is presented in this paper. Besides the correlation coefficient for critical state,when efficiency coefficient equals to l,is formulated,which provide important reference of implementing cluster sampling design and sampling efficiency assessment.In addition,the relationship between efficiency of two-stage cluster sampling and distance between plots in a cluster is further studied with an example demonstrated in detail.Finally,the efficiency assessment of two-stage cluster sampling in forest inventory is also discussed.

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return