关键词: 水资源生态足迹, 生态承载力, 降水量, 川东北城市群, 四川省

Abstract: With the rapid development of economy and society, the demand of water resources is increasing year by year. Based on the ecological footprint model, the spatial and temporal characteristics of water resource ecological footprint of urban agglomeration in Northeast Sichuan Province from 2007 to 2016 were analyzed. The results showed that the ecological footprint of water resources per-capita increased year by year, from 0.1878 hm2 to 0.2958 hm2. The ecological carrying capacity of water resources per-capita fluctuated greatly under the influence of annual precipitation(R>0.8,P<0.01). The per-capita ecological surplus of water resources was consistent with the trend of per-capita ecological carrying capacity of water resources. The ecological footprint of water resources per ten thousand yuan GDP decreased year by year, from 0.2748 hm2 to 0.1414 hm2. The ecological pressure on water resources was within a safe range, but it increased significantly in 2015 and 2016. There was a big difference in water resources ecological carrying capacity among the five cities in the northeast of Sichuan Province. In 2016, Nanchong City showed an ecological deficit and a great pressure on water resources. Guangyuan, Dazhou and Bazhong cities had obvious advantages in water resource ecological surplus, while their surplus was decreasing. It was suggested to increase investment in water conservancy facilities, improve water efficiency, enhance citizens awareness of water conservation and promote sustainable utilization of water resources in Northeast Sichuan Province.

Key words: water resources ecological footprint, ecological carrying capacity, precipitation, urban agglomeration of Northeast Sichuan Province, Sichuan Province;