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[摘要]
采用水资源生态足迹模型, 定量计算和分析了广西2008 年- 2012 年人均水资源生态足迹、水资源生态承载 力、水资源生态盈余, 并对比分析广西14 个城市的人均水资源生态足迹、生态承载力情况。结果显示: ( 1) 广西人均 水资源生态足迹指数近五年内没有大幅度的变化, 比较稳定保持在11 06 hm2 / 人附近, 各年人均水资源生态足迹水 平高低依次为2010= 2011> 2012> 2008> 2009; 而人均生态承载力指数变化较大, 且均小于人均水资源生态足迹; ( 2) 只有柳州市和防城港市存在水资源生态盈余, 其他各市均存在水资源生态赤字, 平均赤字01 56 hm2 / 人。面对 水资源生态赤字问题, 广西需通过调整产业结构, 优化水资源配置, 实施水资源管理/ 三条红线0 等措施, 提高水资源 生态承载力, 减小生态赤字, 以达到水资源可持续利用的目的。
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[Abstract]
The wat er resour ces ecolog ical fo otprint mo del was used to calculate and analyze the wat er r eso ur ces eco lo gical foo t2 pr int , w ater r eso ur ces ecolog ical carr ying capacity , and w ater reso ur ces ecolo g ical profit and lo ss per capit a in 14 cities of Guan2 g x i Pr ov ince fr om 2008 to 2012. The results showed that ( 1) the averag e w ater r eso ur ces eco log ical foo tpr int in Guang xi do es no t var y sig nificant ly and is abo ut 1. 06 hm2 per capita. The water resources eco lo gical foo tpr ints of different year s ar e in a de2 scending o rder o f 2010= 2011> 2012> 2008> 2009. However , the w ater r eso ur ces ecolog ical car ry ing capacity per capita var ies gr eat ly and it is less than the water r eso ur ces eco log ical foo tpr int per capita; and ( 2) ex cept for Liuzhou and Fangwugang , all the cities hav e water resources eco lo gical lo ss w ith an aver age lo ss value o f 0. 56 hm2 per capita. In o rder to so lve the water re2 sour ces ecolog ical loss problem, indust rial st ruct ur e should be adjusted, and water resources manag ement measur es, such as d three red linesd, should be implemented. T hr ough these approaches, w ater resources carr ying capacity is im pr oved and water re2 sour ces ecolog ical loss is decreased to achieve the pur po se o f water resources sustainable utilization.
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