安徽农业大学学报2016，Vol.43Issue(3)：387-393,7.DOI:10.13610/j.cnki.1672-352x.20160512.018
森林景观对区域生物多样性的影响
Effect of forest landscape on regional biodiversity
摘要
Abstract
Reduction of forest resources is one of the important reasons for the regional biodiversity.Therefore,identification of factors affecting regional biodiversity in the forest landscape is crucial.Taking Poyang Lake Eco-economic Zone as a case study area,11 indices pertaining to the aspects of forest landscape quantity,quality and distribution were selected for evaluation.Correlation analysis,linear regression analysis and flexibility analysis were used to investigate the relationship between forest landscape indices and regional biodiversity.The results indicated that the indices chosen to represent forest landscapes were significantly correlated with the regional biodiversity (P＜0.05) except the average tree height.The forest density (the number per hectare) showed the highest correlation with regional biodiversity.Regional biodiversity was most sensitive to the average diameter at breast height,followed by forest landscape distribution equilibrium degree.The area of forestland had the lowest sensitivity to regional biodiversity.Multiple regression equation was established using the stepwise regression method and it showed that the sequence of indices affecting regional biodiversity follows by the growing stock volume,number per hectare,average diameter at breast height,forest landscape distribution equilibrium degree,and the area of forestland.关键词
森林景观/区域生物多样性/影响Key words
forest landscape/regional biodiversity/effect分类
农业科技引用本文复制引用
刘恋,陈文波,谢弟炳..森林景观对区域生物多样性的影响[J].安徽农业大学学报,2016,43(3):387-393,7.基金项目
国家自然科学基金项目(41161031)资助. （41161031）
