长江与珠江分水岭地区生态承载力的变化与提升研究——以黔东南州为例

The Promotion countermeasure and dynamic changeof the ecological carrying capacity in watershed of changjiang river and zhujiang river-a case of qiandongnan

为了揭示长江和珠江分水岭地区生态屏障区生态承载力的演变情况。文章采用生态足迹理论下的生态承载力计算方法,以黔东南州为例,利用其1978-2014年的相关数据计算的结果,分析其生态承载力的演变特征。研究表明:在研究时段,黔东南生态承载力总量总体呈现上升趋势,具有明显的波动性;人均生态承载力为0.835hm^2,呈波动性变化;单位土地面积生态承载力总体呈上升趋势,但是一直低于贵州全省;其生态环境的支撑主要是靠林地以及耕地资源提供的生态承载力。在此基础上,提出了相关提升对策。

In order to reveal the evolution of ecological carrying capacity in watershed of changiiang river and zhujiang river. Based on the ecological footprint theory, this paper analyzes the evolution characteristics of the ecological carrying capacity from a case of qiandongnan by using the correlation data in 1978-2014. Research shows that： during the study period, Qiandongnan＇s Ecological carrying capacity overall upward trend, with obvious fluctuation, the per capita ecological carrying capacity is 0.835hmz, with fluctuation, the capacity of per unit area overall upward trend and is always lower than the Guizhou Province, the support of it＇s ecological envimnmem is mainly provided by the ecological carrying capacity of woodland and arable land resources. On this basis, it puts forward the relevant measures to improve.