完全封育方式对天然油松林的影响

被引：24

作者：

侯琳

雷瑞德

机构：

[1] 西北农林科技大学林学院

来源：

生态学报 | 2007年 / 01期

关键词：

黄龙山; 天然次生油松林; 封山育林; 生态系统健康; 评价;

D O I：

暂无

中图分类号：

S791.254 [油松];

学科分类号：

090709 [森林培育学];

摘要：

基于敏感性分析,选择了12个反映封育天然油松林植被和土壤特征的指标,建立了封山育林措施实施效果的评价指标体系。根据等间距法,将封山育林措施实施效果综合指数划分为5个等级。采用层次分析法和综合指数法,对封山育林措施在不同封育年限天然次生油松林中的实施效果进行了评价,结果表明封育16,25,30,45,60a和75a的天然次生油松林,封育措施实施效果综合指数值分别为7.25,6.88,7.82,5.51,4.78和2.79,随着封育年限增加,完全封育方式实施效果逐渐变差,本区天然林完全封育年限最长不应超过45a。封育45a后,应采取适宜树种混交、择伐等培育和经营措施。

引用

页码：288 / 295

页数：8

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