辽宁省清原县森林资源结构及其空间优化配置  

Forest resources in Qingyuan County of Liaoning, Northeast China: Their structure and optimal spatial allocation

作　　者：步长千[1,2,3] 胡志斌[1,2] 于立忠[1,2] 闫巧玲[1,2] 郑晓[1,2] 

机构地区：[1]中国科学院沈阳应用生态研究所森林与土壤生态国家重点实验室,沈阳110164 [2]中国科学院清原森林生态实验站,沈阳110016 [3]中国科学院大学,北京100049

出　　处：《应用生态学报》2013年第4期1070-1076,共7页Chinese Journal of Applied Ecology

基　　金：国家重点基础研究发展计划项目(2012CB416906)资助

摘　　要：利用RS、GIS技术和多目标灰色局势决策方法,综合森林的经济效益指标(生物量、林分生产力)和生态效益指标(涵养水源量、固土量),对清原县现有森林类型进行空间优化配置.结果表明:经优化配置后,清原县森林类型的结构比例发生了明显的变化,其中针叶林和阔叶林面积由43%、51%减少到23%、31%,针阔混交林面积由3%增加到43%,灌木林面积保持不变;森林生态系统生物量、林分生产力分别增加0.6%、2.1%,而涵养水源功能增加31.7%,固土功能基本保持不变,在保留较高木材生产效益的同时,可充分发挥涵养水源功能,实现森林生态系统经济效益和生态效益的最大化.By using RS/GIS techniques and the method of multiple objective grey situation deci- sion, and in considering the forest economic benefits （biomass and stand productivity） and ecologi- cal benefits （water and soil conservation）, an optimal spatial allocation of the present forest types in Qingyuan County of Liaoning, Northeast China was approached in this study. After the optimiza- tion of spatial allocation, the structural proportions of different forest types in Qingyuan County changed obviously, with the area of coniferous forests reduced from 43% to 23%, the area of broa- dleaved forests reduced from 51% to 31% , the area of mixed coniferous-broadleaf forests increased from 3% to 43%, and the area of shrubs remained unchanged. As compared with the results before optimization, the biomass, stand productivity, and water conservation function of the forest ecosys- tem in Qingyuan County after optimization increased by 0.6%, 2.1%, and 31.7%, respectively, and the soil conservation function remained unchanged. It could be concluded that after the optimi- zation of spatial allocation, the forest ecosystem of Qingyuan County could maintain its soil conser- vation function, and, at the time of keeping higher timber production, fully exert water conservation function, realizing the maximization of the economic and ecological benefits of the forest ecosystem.

关 键 词：辽宁省清原县 多目标灰色局势决策 空间优化配置 森林生态系统 

分 类 号：S757.2[农业科学—森林经理学]