黄河流域可持续利用水资源的时空空间演变和脱效应:基于三维水生态足迹
Zhicheng Lai1, Lei Li2, Min Huang3
1School of Geography, Nanjing Normal University, Nanjing 210023, Jiangsu, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, Jiangsu, China.
Journal of environmental management
|July 24, 2024
概括
黄河流域的可持续水资源利用 (SWU) 显示出一个赤字,经济增长在很大程度上脱. 减少水资源资本储备的消耗和增加流量是稳定脱的关键.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 生态经济学生态经济学
背景情况:
- 有效地管理水生态系统和盆地开发需要了解可持续的水资源利用 (SWU) 和与经济增长 (EG) 的脱.
- 传统的生态足迹模型在与盆地内的SWU进行比较时存在局限性,并且经常忽视水的可再生性.
- 现有研究需要更好地将水的可再生性纳入SWU量化.
研究的目的:
- 通过整合三维水生态足迹 (WEF),可持续重新分类和塔皮奥模型,构建SWU及其与EG脱的评估方法.
- 探索改善SWU的不同策略.
- 分析SWU的时空演变及其与黄河流域 (YRB) 的EG脱.
主要方法:
- 开发了一种基于资本流动和股票前景的SWU和脱效应的新评估方法.
- 结合了三维水生态足迹 (WEF),可持续重新分类和塔皮奥模型.
- 分析了黄河流域2010年至2022年的时空数据.
主要成果:
- 在YRB中的SWU在2010-2022年间呈现下降,然后增加的趋势,通常显示水生态赤字,中/下游利用率较低.
- 人均WEF大小每年下降,而WEF深度增加,这表明对YRB的SWU有很大的压力. 农业用水和家庭灰色水排放占主导地位.
- 在WEF和EG之间观察到强烈的脱,WEF落后于EG. 空间差异化显示了SWU的西部力量和东部弱点.
结论:
- 减少水资源资本储备的消耗和增加水资源资本流动对于实现SWU和EG之间稳定,强大的脱至关重要.
- 该研究为SWU在大型干旱/半干旱河流盆地提供了必要的见解,特别是YRB的可持续水资源管理.
- 解决与工业结构相对的用水结构逆转对于改善SWU至关重要.
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