摘要
以广西良凤江国家森林公园壳斗科(Fagaceae)人工林为研究材料,选择10个生态指标,通过灰色多层次模型及主成分分析,建立壳斗科两种树种人工林生态效益评价体系。在选择的青钩栲人工林和麻栎人工林生态综合评价得分中,得出青钩栲人工林的两个准则层指标:森林地力权重(0.567 8)和土壤权重(0.457 8)均高于麻栎人工林;青钩栲人工林生态效益价值得分(5.512 5)比麻栎人工林(1.322 3)高。表明该生态系统评价体系能衡量人工林树种直接生态价值,对森林生态系统评价具有指导意义,可为今后生态系统研究提供理论依据。
Using Fagaceae species plantation of Guangxi Liangfengjiang national forest park as materials,ten ecological indexes were selected to establish ecological effect appraisal systems of the two timber plantation of Fagaceae with principal component analysis and grey hierarchy evaluation model.In comprehensive evaluation system of the two kinds of plantation,the scores of the two criteria layer indexes of Castanopsis kawakamii Hayata were the weight coefficient of woodland weights of 0.567 8 and the weight coefficient of forest soil weight of 0.357 8,higher than that of Quercus acutissima Carruth.It is indicated that the ecological value of the ecological system of C.kawakamii Hayata plantation （5.512 5） was higher than that of Q.acutissima Carruth（1.322 3）.The ecological effect appraisal system could measure ecological value and provide a theoretical basis for the future research of ecosystem.
出处
《湖北农业科学》
北大核心
2014年第13期3094-3098,共5页
Hubei Agricultural Sciences
基金
广西"十一五"研究项目(桂林科字[2009]22号)
国家自然科学基金项目(3126012)
