鼎湖山自然保护区森林景观时空格局变化研究  

Forest Landscape Pattern in Dinghu Mountain Reserve

作　　者：彭月[1] 魏虹[1] 朱韦[1] 田晓锋[1] 熊春妮[1] 

机构地区：[1]西南大学生命科学学院三峡库区生态环境教育部重点实验室,重庆400715

出　　处：《西南师范大学学报（自然科学版）》2007年第2期65-69,共5页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：中国博士后科学基金资助项目(2003033483)

摘　　要：以研究区1991年及1999年的Landsat-TM假彩色合成影像为原始数据,通过GIS软件的辅助并结合地面资料进行处理,利用Fragstats3.3计算景观格局指数,以此对研究区的森林资源的景观格局和变化进行研究.结果表明,在斑块水平上,混交林和常绿阔叶林是研究区内的主要斑块类型,随着时间推移,它们与景观的相似性增加.由于快速的演替,针叶林大面积的减少.非林地、其他林地、灌丛和水域等类型由于相互距离较远,破碎度较大,更多的体现了人类活动的影响.在景观水平上,1991年的景观多样性指数和均匀度指数比1999年要高,表明了1991年的景观分布更为平均,而1999年的异质性更强.Based on remote sensing data of Dinghu Mountain in 1991 and 1999, the forest landscape pattern was studied using GIS and Fragstats software. At the patch level, the Mixed and Evergreen broadleaf forest were the main patch types, which were more similar with the total landscape from 1991 to 1999. As a result of succession, the Pine forest decreased fast. At the landscape level, the Landscape type diversity index and evenness index in 1991 higher than that in 1999, which showed that the landscape distribution in 1991 was more even and the landscape heterogeneity in 1999 was higher.

关 键 词：鼎湖山自然保护区 景观格局 遥感影像 时空格局 

分 类 号：Q948.3[生物学—植物学]