广西北部湾经济区生态承载力研究

Study on Ecological Carrying Capability in Guangxi Beibu Gulf Economic Zone

基于生态足迹的基本理论方法，利用RS、GIS空间技术和手段，从图斑尺度对1990、2000、2005-2010年广西北部湾经济区生态承载力供给进行定量计算和空间格局分析。结果表明：广西北部湾经济区人均生态承载力从1990年的0．7267gha／cap，到2010年人均生态承载力减少到0．5560gha／cap，20年间人均生态承栽力减少0．1707gha／cap。广西北部湾经济区生态承栽力供给空间分布极不均匀，表现出明显的地带性与局地性，整体以大明山和十万大山为分隔带，两大山脉两侧生态承载力较高。

This paper quantitatively calculated and analyzed the spatial pattern of the ecological carrying capacity of Guangxi Beibu Gulf Eco- nomic Zone from the map level of different spatial scales in 1990, 2000, 2005 -2010 based on the basic theory and method of ecological foot- print and using RS and GIS technology. The results show that ： The per capita ecological carrying capacity of the Guangxi Beibu Gulf Economic Zone was O. 726 7 gha/cap in 1990 and was reduced to 0.556 0 gha/cap by 2010. The per capita ecological carrying capacity reduced 0. 170 7 gha./cap during 20 years. The spatial distribution of ecological carrying capacity supply of Guangxi Beibu Gulf Economic Zone was very une- ven. The distribution pattern showed the consistent to the zonal distribution and local distribution. It was divided by the two mountain Darning Mountain and one hundred thbusand mountains and on both sides of the two mountains the ecological capacity was higher.