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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.
Based on the decision-making methods of RS, GIS and multi-objective gray situation, taking the economic benefit index (biomass and stand productivity) and ecological benefit index (conserving water resources and soil volume) of forest, The results showed that the structure proportion of the forest types in Qingyuan County changed obviously after optimization and allocation, in which the areas of coniferous forest and broadleaf forest decreased from 43% and 51% to 23% and 31% The forest area increased from 3% to 43%, the area of shrubbery remained unchanged; the biomass of forest ecosystem and stand productivity increased by 0.6% and 2.1% respectively, while the conservation of water source function increased by 31.7% While retaining the benefits of higher timber production, it can give full play to the conservation of water sources to maximize the economic and ecological benefits of forest ecosystems.