| 低质低效冷杉林的分类与评价 |
| |
| 引用本文： | 欧阳君祥,曾思齐.低质低效冷杉林的分类与评价[J].中南林业科技大学学报,2003,23(1):6-10. |
| |
| 作者姓名： | 欧阳君祥 曾思齐 |
| |
| 作者单位： | 国家林业局规划院 北京100714
(欧阳君祥)，中南林学院资源与环境学院 湖南株洲412006(曾思齐) |
| |
| 基金项目： | 国家“九五”重点攻关专题“长江中上游低质低效次生林改造技术研究”(96-2 0 7-0 2 )的部分内容 |
| |
| 摘 要： | 对冷杉林分的生长过程、形成原因和功能特征进行了分析 ,建立了冷杉低质低效林综合等级的判别函数 ,将林分划分为4种类型 :极低质低效型、生长潜力型、低质型、综合低质低效型 .对林分立地因子的逐步回归分析表明 ,在其分布区域内 ,影响冷杉生长的主导立地因子除了海拔和坡向外 ,依次为土壤名称、土层厚度和坡位 ,而坡度对其影响较小 .它们的组合可以构成不同的立地条件类型 .根据对各等级的林分生长过程及其立地特征的分析 ,提出了划分冷杉低质低效林的技术参数标准
|
| 关 键 词： | 林学 低质低效 冷杉 分类 评价 |
| 文章编号： | 1000-2502(2003)01-0006-05 |
| 修稿时间： | 2001年10月17 |
Classification and Evaluation of Low-Quality and Low-Benefit Secondary Abies delavyi Stand |
| |
| OUYANG Jun xiang ,ZENG Si qi.Classification and Evaluation of Low-Quality and Low-Benefit Secondary Abies delavyi Stand[J].Journal of Central South Forestry University,2003,23(1):6-10. |
| |
| Authors: | OUYANG Jun xiang ZENG Si qi |
| |
| Institution: | OUYANG Jun xiang 1,ZENG Si qi 2 |
| |
| Abstract: | After an analysis of the growth procedure, the causes that result in the stand status, and the function features of the stand, we established the judgment function of incorporate grades of the low quality and low benefit secondary fir stand and divided it into four types: the extreme low quality and low benefit type, the potential type, the low quality type and the incorporate low quality and low benefit type. Gradual regression analyses of the site factors show that in the area of its distribution, the main site factors that affect the growth of the stand are respectively the soil name, the soil depth and the stand position, besides the altitude above sea level and the slope direction. The slope has the least effect. The combination of these factors can constitute various site types. Based on the analysis of the stand growth procedure and its site features, we provided a parameter criterion used to sort the low quality and low benefit secondary fir stands. |
| |
| Keywords: | forestry low quality and low benefit Abies delavyi classification evaluation |
| 本文献已被 CNKI 等数据库收录！ |
