| 次生林改造评价指标体系的研究 |
| |
| 引用本文： | 孙洪志,屈红军,石丽艳,任青山. 次生林改造评价指标体系的研究[J]. 森林工程, 2004, 20(2): 1-2 |
| |
| 作者姓名： | 孙洪志 屈红军 石丽艳 任青山 |
| |
| 作者单位： | 1. 东北林业大学,哈尔滨,150040
2. 中国人民大学,北京,100872 |
| |
| 基金项目： | 黑龙江省科技攻关项目 (GC0 2B60 5 ) |
| |
| 摘 要： | 依据大量的调查资料 ,应用有序样本聚类方法 ,按林分类型、立地条件和林龄来确定次生林改造生长量划分标准 ;以地形、土壤、更新密度等因素作为综合评价指标 ,以打分评定来确定次生林改造对象 ,并举例说明。
|
| 关 键 词： | 次生林 改造 生长量 综合指标 |
| 文章编号： | 1001-005X(2004)02-0001-02 |
| 修稿时间： | 2003-12-20 |
Research on Evaluating Index System of Secondary Forest Reform |
| |
| Sun Hongzhi,Qu Hongjun,Shi Liyan. Research on Evaluating Index System of Secondary Forest Reform[J]. Forest Engineering, 2004, 20(2): 1-2 |
| |
| Authors: | Sun Hongzhi Qu Hongjun Shi Liyan |
| |
| Abstract: | Based on a large amount of investigating data,the authors use cluster analysis method with ordered samples to set dividing standards for the growth rate of secondary forests rechange.According to stand type,site quality and stand age,the authors choose topography,soil and regeneration density as comprehensive evaluating indexes,give scores to determine the object of secondary forests rechange,and give some explainary samples. |
| |
| Keywords: | secondary forests rechange growth rate comprehensive index |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
