| 秦岭主要森林类型近自然度评价 |
| |
| 引用本文： | 彭舜磊,王得祥.秦岭主要森林类型近自然度评价[J].林业科学,2011,47(1). |
| |
| 作者姓名： | 彭舜磊 王得祥 |
| |
| 作者单位： | 1. 西北农林科技大学林学院,杨凌,712100;华东师范大学环境科学系,上海,200062
2. 西北农林科技大学林学院,杨凌,712100 |
| |
| 基金项目： | 林业公益性行业科研专项 |
| |
| 摘 要： | 选择秦岭火地塘林区7个森林类型,在样地调查的基础上,基于敏感性分析,选择17个反映森林类型特征的指标,运用层次分析法建立秦岭主要森林类型近自然度评价指标体系,应用综合指数法建立评价数学模型.根据等间距法,将森林类型近自然度评价综合指数划分为5个等级.评价结果表明:秦岭7个主要森林类型即铁杉天然次生林、锐齿栎天然次生林、华山松天然次生林、红桦天然次生林、华山松人工林、油松人工林、华北落叶松人工林的近自然度评价综合指数分别为0.98,0.90,0.78,0.56,0.39,0.35,0.01,近自然度等级分别为1,1,2,3,4,4,5,铁杉和锐齿栎天然次生林处于近自然状态,其他林分分别处于半自然、远天然、近人工和人工状态,近自然度顺序表现为顶极群落森林>演替过渡群落森林>先锋群落森林>乡土树种人工林>外来树种人工林.评价结果与该区森林天然性程度相吻合,证明评价指标体系和模型的适用性.针对不同森林类型的近自然度,提出相应的经营措施.
|
| 关 键 词： | 秦岭 森林类型 指标体系 近自然度 评价 |
Natuarlness Assessment of the Main Forest Communities in Qinling Mountains |
| |
| Peng Shunlei,Wang Dexiang.Natuarlness Assessment of the Main Forest Communities in Qinling Mountains[J].Scientia Silvae Sinicae,2011,47(1). |
| |
| Authors: | Peng Shunlei Wang Dexiang |
| |
| Institution: | Peng Shunlei1,2 Wang Dexiang1 (1.College of Forestry,Northwest A & F University Yangling 712100,2.Department of Environment Science,East China Normal University Shanghai 200062) |
| |
| Abstract: | Naturalness assessment was a basic work for natural forest management and it also could be used to propose reasonable measures for forestation.This study was carried out in Qinling mountain where most forests were natural secondary forests and our objective was to assess naturalness of the main forest types in this region.The data were collected from 35 stand plots and 105 soil samples.On this basis,through sensitivity analysis of 30 indexes which describes the community characteristics,17 indexes were filt... |
| |
| Keywords: | Qinling moutains forest types index system naturalness assessment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
