摘要
从地形和气候两方面构建生态区位评价指标体系,探讨森林生态服务价值核算的新方法。同时,以四川省森林生态系统为例,利用区位系数对原有核算结果进行调整。结果表明,四川省森林生态服务价值总量增加,说明该省森林生态服务价值被原有核算方式低估;西部州市生态服务价值量增加,东部州市减少,说明该省生态脆弱州市较多,生态区位呈现明显的地带特征。调整后的结果能够反映出四川省不同地区森林生态系统的结构与功能差异,更准确地揭示出四川省森林生态系统在支持人类福利方面所起的作用。
This study focuses on the forest ecological services value accounting and constructs the ecological location evaluating index in an innovative way from the terrain and climate perspectives. Meanwhile,Sichuan province is taken as an example to illustrate the forest ecosystem in this study and to adjust the location coefficient. After the adjustment,the total value of Sichuan become higher,which means the value was underestimated by the fomer method,while the eastern parts become higher and western parts become lower,which suggests that there exist a number of fragile parts in Sichuan and a zonal characteristic. The location factor model includes location factors which can reflect the ecological information in different regions of Sichuan province more precisely. It can also demonstrate the importance of forest ecosystem services for mankind＇s welfare.
出处
《河南农业大学学报》
CAS
CSCD
北大核心
2015年第6期831-837,共7页
Journal of Henan Agricultural University
基金
国家林业局林业生态安全指数研究项目(ZDWT201415)
关键词
森林生态系统
价值评估
区位系数
forest ecosystem
value accounting
location factor coefficient
