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林业资源管理 ›› 2016›› Issue (1): 32-38.doi: 10.13466/j.cnki.lyzygl.2016.01.007

• 科学研究 • 上一篇    下一篇

省级森林资源年度出数方法探讨

于维莲1, 曾伟生2, 陈新云2   

  1. 1.贵州省林业调查规划院,贵阳 550003;
    2.国家林业局调查规划设计院,北京 100714
  • 收稿日期:2015-09-30 修回日期:2015-11-01 发布日期:2020-11-04
  • 通讯作者: 曾伟生(1966-),教授级高工,博士,主要从事森林资源调查监测和林业数表研制工作。Email:zengweisheng0928@126.com
  • 作者简介:于维莲(1965-),女,黑龙江宾县人,工程师,主要从事森林资源调查监测工作。

Discussion on Methods for Output of Annual Provincial Estimates of Forest Resources

YU Weilian1, ZENG Weisheng2, CHEN Xinyun2   

  1. 1. Guizhou Forest Inventory and Planning Institute,Guiyang 550003,China;
    2. Academy of Forest Inventory and Planning,State Forestry Administration,Beijing 100714,China
  • Received:2015-09-30 Revised:2015-11-01 Published:2020-11-04

摘要: 如何实现森林资源年度出数,一直都备受关注。参照近年提出的国家层面森林资源年度出数方法,提出了省级森林资源年度出数的基本原则和技术思路,并利用近期贵州、辽宁两省的森林资源连续清查数据,对每年调查1/5样地、采用移动平均数进行年度估计的方法进行了深入分析。通过采用不同权重方案进行对比分析后发现,每年取相等权重的方案尽管在时效性方面会有所损失,但数据的稳定性最高,能客观反映森林资源年度数据的变化趋势,是可选的最佳方案。

关键词: 森林资源, 年度数据, 移动平均, 时效性, 稳定性

Abstract: How to realize output of annual data of forest resources has been concerned for many years. With reference to the methods for producing annual national estimates of forest resources presented in recent years,this paper puts forward the basic principles and technical ideas on output of annual provincial estimates of forest resources,and makes use of the continuous forest inventory(CFI)data of two provinces of Guizhou and Liaoning to carry out the analysis on the approach that one-fifth of the CFI plots throughout the province are measured every year and annual estimates are obtained through moving average method. By comparing the results from different weighting schemes,it was found that the equal weighting estimator with some loss of timeliness had the highest stability and was the best alternative one,which could objectively reflect the changing trend of the annual data of forest resources.

Key words: forest resources, annual data, moving average, timeliness, stability

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