摘要
基于生态足迹理论,从省域、区域和市域3个不同的空间尺度对广东省2005年-2011年间水资源生态足迹和水资源生态承载力进行了计算与分析,结果表明:研究期内,广东省水资源生态足迹呈逐年减小的趋势,下降幅度为每年11.6%;万元GDP生态足迹逐年下降,水资源利用率逐年提高;全省水资源生态承载力较高,总体上呈现生态盈余,水资源利用状态为可持续。在区域差异上,粤北山区的水资源生态足迹最高,粤东地区最低;珠三角地区水资源生态压力最大,粤北地区最小。而市域空间分布上,韶关市、广州市人均水资源生态足迹在各地级市中较大,佛山市水资源生态压力位于各市之首。在社会经济发展过程中,各地区应根据区域水资源可持续利用状态,进行产业结构的调整,提高用水效率。
Based on the theory of ecological footprint, the ecological footprint and ecological carrying capacity of water resources in Guangdong Province were calculated and analyzed from 2005 to 2011 in aspect of the provincial, regional, and municipal scales. The results showed that（l） during the study period, the water resources ecological footprint per capita of Guangdong Province decreases continuously with a rate of 11.6%/a; （2） the water resources ecological footprint per 104 yuan GDP decrea- ses annually, indicating the increasing of utilization of water resources;and（3） the water resources ecological carrying capacity is high in the provincial scale, which suggested the ecological surplus status and thus the utilization of water resources is sustain- able. On the regional distribution, the ecological footprint was highest in the northern mountain area of Guangdong whereas low- est in eastern Guangdong. The water resources ecological pressure was highest in the Pearl River Delta region whereas the low- est in northern Guangdong. On the municipal distribution, the water resources ecological footprint per capita was higher in Sha- oguan and Guangzhou than that in other cities, and the water ecological pressure in Foshan was the highest among all cities. In the process of socio-economic development, the industrial structure should be adjusted and the water use efficiency should be im proved based on the status of sustainable utilization of water resources.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2013年第5期11-15,98,共6页
South-to-North Water Transfers and Water Science & Technology
基金
国家科技支撑计划基金项目(2012BAH32B03)
广东省自然科学基金项目(S2012010009613)
关键词
水资源生态足迹
生态承载力
生态压力
广东省
water ecological footprint
ecological carrying capacity
ecological pressure
Guangdong Province
