鄂西三峡库区森林资源动态变化分析与评价  

Analysis and evaluation on dynamic changes in the forest resources at the Three Gorges reservoir region in western Hubei

作　　者：袁传武[1] 史玉虎[1] 唐万鹏[1] 胡必平 

机构地区：[1]湖北省林业科学研究院,湖北武汉430079 [2]湖北省林业勘察设计院,湖北武汉430079

出　　处：《南京林业大学学报（自然科学版）》2009年第2期43-46,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家“十一五”科技支撑计划(2006BAD03A1303;2006BAD03A07-01)

摘　　要：为了科学地进行鄂西三峡库区森林资源生态效益的监测、合理评价及健康经营,对鄂西三峡库区森林资源面积、蓄积量、组成结构等进行了动态分析与评价。研究表明:20世纪60年代中期至80年代中期,该区域林业用地面积和蓄积均呈下降趋势;其后,由于实施一系列林业生态保护与可持续发展工程保护和发展森林资源,鄂西三峡库区森林面积、蓄积量和覆盖率有很大的提高,林地面积年均增长率为1.12%,防护林、经济林、特用林面积年均增长率分别为3.87%、10%、8.40%,用材林面积净减率为1.43%,林种结构逐步趋向合理,为三峡库区生态环境安全的构建发挥了积极的作用。In order to monitor the ecology benefit and properly evaluate, and to manage the forest resources at the Three Gorges reservoir region in western Hubei, we conducted dynamic analysis on acreage, volumes and compositions of the forest resources in this area using statistical, compution and graphical analytical tools. The results showed that the forest acreage and stand volume decreased rapidly from the mid-1960s to mid-1980s. Since then, the Hubei provincial government and the local forestry bureau have exerted great efforts to carry out a series of ecological protection regulations and many sustainable development projects. These measures have efficiently protected the development of forest resources in this area. The forest acreage, volume, and coverage have been all greatly improved. The average annual increasing rate of forest acreage was 1.12% , and that of the protection forest, economic forest and special forest was 3.87% , 10% , 8.40% respectively. The net reduction rate of timber area was 1.43%. Forest compositions were found to be in an increasingly appropriate structure. Forests are playing important role in maintenance the ecological and environmental safety of the Three Gorges reservoir regions.

关 键 词：鄂西三峡库区 森林资源 动态变化 

分 类 号：S715[农业科学—林学]