运用投影寻踪法分级利用闽北生态公益林的研究  

Utilizing Non-commercial Forest with Projection Pursuit Method in Northern Fujian Province

作　　者：钱永平[1,2] 陈元镇[1] 周俊新[1] 吴旻[3] 

机构地区：[1]福建林业职业技术学院资源环境系,福建南平353000 [2]福建农林大学生命科学学院,福建福州350002 [3]福建林业职业技术学院土木工程系,福建南平353000

出　　处：《北华大学学报（自然科学版）》2014年第5期679-683,共5页Journal of Beihua University（Natural Science）

基　　金：福建省林业科学研究项目(闽林科[2012]2号):森林生态健康评价指标体系构建及其应用研究;福建省林业科学研究项目(闽林科[2010]17号):闽北生态林套;改种药材和能源树种技术研究

摘　　要：结合资料采用样地法对闽北生态公益林样地的坡度、坡长、盖度、生物多样性、生物量和人为干扰等因子进行调查,运用投影寻踪原理将闽北生态公益林分为3类进行分级利用.研究发现:坡度增加、土壤侵蚀加剧和人为干扰增加不利于生态公益林的利用.坡度对生态公益林的利用有临界值,可利用生态公益林的坡长有上限值,而生态公益林的利用与盖度、生物量和生态多样性之间关系没有明显的规律性.通过主成分分析说明了指标之间的复杂关系和指标选取的必要性.Based on the literature and the investigation of non-commercial forest with the index including angle and length of slope,plant coverage,diversity,biomass and anthropogenic activity in northern Fujian Province,the non-commercial forest had been classified into three types for utilizing purpose with the principle of projection pursuit. The results showed that there are unfavorable to utilize non-commercial forest with the increase of slope,soil erosion and human disturbance. There is a threshold of slope to utilize non-commercial forest,an upper limit of slope length to non-commercial forest which can be available,but there is no obvious regularity between the non-commercial forest and cover,biomass and diversity. There are the complex relationships between indexes by the method of the principal component analysis.

关 键 词：闽北 生态公益林 分级利用 投影寻踪 

分 类 号：S750[农业科学—森林经理学]