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| 控制二类调查蓄积的方法研究 | |
| 引用本文： | 刘羿,向新年,刘安兴.控制二类调查蓄积的方法研究[J].浙江林学院学报,2005,22(5):535-539. |
| 作者姓名： | 刘羿 向新年 刘安兴 |
| 作者单位： | 1. 浙江工商大学,统计与计算科学学院,浙江,杭州,310012 2. 浙江省淳安县林业局,浙江,淳安,311700 3. 浙江省森林资源监测中心,浙江,杭州,310020 |
| 摘 要： | 对森林资源规划设计调查(二类调查)中系统抽样和回归分析技术控制总体蓄积的方法进行了比较研究.结果显示,回归估计可充分利用抽样调查与小班调查的综合信息,提高控制二类调查蓄积量的精度,提高成果质量.通常情况下,回归估计的效率高于系统抽样.回归分析可提高抽样数据的利用效率,回归模型有利于监控小班调查质量,修正完善小班调查的数据;利用回归模型校正系统误差,避免因系统误差引起不必要的调查返工所造成的人力和物力资源浪费.参16 |
| 关 键 词： | 森林经理学 森林资源 二类调查 系统抽样 回归估计 蓄积控制 蓄积调整 |
| 文章编号： | 1000-5692（2005）05-0535-05 |
| 收稿时间： | 2005-07-12 |
| 修稿时间： | 2005-07-122005-09-23 |
Research on methods for controlling the volume of forest management inventory |
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| LIU Yi,XIANG Xin-nian,LIU An-xing.Research on methods for controlling the volume of forest management inventory[J].Journal of Zhejiang Forestry College,2005,22(5):535-539. | |
| Authors: | LIU Yi XIANG Xin-nian LIU An-xing |
| Abstract: | A comparative study of systematic sampling and regression estimate for controlling total volume was conducted. The result implied that when doing regression estimate, the integrated information from sampling investigation and subcompartment investigation could be fully made use of to improve the precision for controlling the volume of forest management inventory. The efficiency of regression estimate was usually higher than systematic sampling. The utilization efficiency of the sampling statistics could be improved by regression analysis. The regression model could be used to monitor the quality of forest management inventory and correct the statistics of the forest management inventory. In addition, the systematic error could be adjusted by the regression mode so that the rejection and waste caused by systematic error could be avoided. Ch, 16 ref. ] |
| Keywords: | forest management forest resources forest management inventory systematic sampling regression estimate forest volume controlling forest volume adjusting |
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