FOREST RESOURCES WANAGEMENT ›› 2017›› Issue (1): 7-11.doi: 10.13466/j.cnki.lyzygl.2017.01.003
• Integrated Management and Administration • Previous Articles Next Articles
HUANG Guosheng, ZENG Weisheng(), DANG Yongfeng, ZHI Changgui
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Abstract:
Aim ed at sampling frame design of 20km×20km and cluster sampling design with 25 plots in national forest resources macro-monitoring,and based on results of the 1 st macro-monitoring in 2015,an improvement scheme was presented,which could meet the needs of sampling precision of all provinces,intensify the grid of sampling frame,and decrease the number of plots to nine in a cluster.This would provide a basis for optimizing the national forest resources macro-monitoring plan developed in 2016.
Key words: forest resources, macro-monitoring, cluster sampling
CLC Number:
S757
HUANG Guosheng, ZENG Weisheng, DANG Yongfeng, ZHI Changgui. Discussion on Improvement of Sampling Design of National Forest Resources Macro-Monitoring[J]. FOREST RESOURCES WANAGEMENT, 2017, (1): 7-11.
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URL: https://www.lyzygl.com.cn/EN/10.13466/j.cnki.lyzygl.2017.01.003
https://www.lyzygl.com.cn/EN/Y2017/V0/I1/7
Tab.1
The numbers of clusters and plots by province in national forest resources micro-monitoring
Fig.1
Sketch map of cluster sample plot
Tab.2
The various sampling designs with different plots in the 2km×2km cluster
Tab.3
The various sampling designs with different plots in a 1km×1km cluster
Tab.4
The mean variation coefficients of sampling designs with different plots in two kinds of clusters
Fig.2
Changing trend of variation coefficients with the number of plots in the 2km×2km cluster