摘要
以南宁市林地保护利用落界调查资料为基础,用层次分析法调整南宁市的主要乡土树种结构。以定量分析为核心,以生态、经济效益值最大为目标,建立树种优化模型,结果表明:南宁市针阔叶树比例应从现有的6.8∶3.2调整到5.5∶4.5,有利于不断提高林地生产力,形成稳定的森林生态系统。
The structure of native tree species in Nanning City was studied by means of analytic hierarchy process （AHP） on the basis of the survey data of conserving and utilizing the forest land in the city. The optimal model of tree species structure was established with quantitative analysis as the core by taking the maximum ecologi- cal and economic benefits as the goal. The results showed that it would be beneficial to promoting the productivity of forest land and forming more stable forest ecosystem if the proportion of coniferous and broadleaved tree species would be adjusted from present 6. 8：3.2 to 5.5：4. 5.
出处
《西南林业大学学报（自然科学）》
CAS
2013年第3期79-82,共4页
Journal of Southwest Forestry University：Natural Sciences
关键词
乡土树种
结构调整
优化模型
南宁市
native tree species
structure adjust
optimization model
Nanning City
