甘肃中部地区相对资源承载力研究

Studyon relative carryingcapacityof resources in the central region of Gansu Province

利用几何相对资源承载力模型,以全国和甘肃省为参照区,对甘肃省中部地区2000-2014年的相对资源承载力及其可持续发展状况进行实证。结果表明：（1）以甘肃为参照区,白银市经济发展相对超前,而相对资源人口承载力富余,有一定吸纳人口的空间;兰州市人口与经济双重超载,属于人口密度大,具备区域带动辐射能力的经济相对发达区;无论以甘肃还是全国为参照区,定西市和临夏州均面临经济发展滞后与人口严重超载的双重困境;（2）甘肃中部相对资源承载力区域差异明显,且呈拉大趋势;（3）区域资源禀赋差异大,资源利用效率低,水资源紧缺是提升甘肃中部地区相对资源承载力的关键限制因子;（4）提高资源利用效率,充分发挥地区资源优势,挖掘区域开发潜力是中部地区可持续发展的方向和动力。

Based on the geometric model of the relative carrying capacity of resources,the relative carrying capacity of resources in the central region of Gansu Province from 2000 to 2014was calculated by taking China and Gansu as reference.And the sustainability development status was analyzed according to the results of the empirical analysis.The results showed that：1）Baiyin was relative more advanced in terms of development with relatively abundant resources and the lower population density.Lanzhou was overloading both population and economy and belonged to economic developed zone with the higher capability of regional driving radiation.For Dingxi and Linxia,it was not only overpopulated but also lagging economic development compared with China and Gansu Province.2）Relative carrying capacity of resources in the central region was significantly different among locations and the difference was increasing.3）Water resource shortage was the key limited factor for the promotion of the relative carrying capacity.4）There were differences in regional resource endowments and the resource utilization efficiency was low.Improving the efficiency of resource utilization,making good use of regional resources advantage and mining area development potential were regarded as the direction and motivation of sustainable development for the central regions.