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动态变化在水资源和综合评估的水资源利用效率在阿拉尔海盆地,中央亚洲的动态变化
Xuanxuan Wang1, Buli Cui2, Yaning Chen3
1School of Hydraulic Engineering, Ludong University, Yantai, 264025, China.
Journal of environmental management
|February 3, 2024
概括
阿拉尔海盆地的水资源利用效率受到争议和短缺的挑战. 一个改进的CV-DEA模型揭示了农业用水的高低效率,影响了整体水资源利用效率 (WRUE).
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 区域发展 区域发展
背景情况:
- 阿拉尔海盆地面临着由于跨境争端和资源稀缺而面临的重大水资源挑战.
- 传统的水资源利用效率 (WRUE) 模型往往高估了评估结果.
- 观察到阿拉尔海水面积的显著下降,从25600平方公里减少到7000平方公里 (2000-2018).
研究的目的:
- 开发一个改进的模型来评估WRUE,解决传统方法的局限性.
- 评估阿拉尔海盆地国家 (2000-2018) 的WRUE,并与其他地区进行比较.
- 确定影响阿拉尔海盆地的水利用效率的关键因素.
主要方法:
- 开发了一个新的CV-DEA (变化系数-数据包围分析) 模型.
- 应用了CV-DEA模型来评估2000年至2018年的阿拉尔海盆地国家的WRUE.
- 阿拉尔海盆地与公河盆地和东北亚 WRUE 的比较.
主要成果:
- 阿拉尔海盆地的平均WRUE (0.599) 比公河 (0.547) 高,但低于东北亚 (0.885).
- 哈萨克斯坦 (0.819) 和乌兹别克斯坦 (0.685) 显示了最高的WRUE,从2000-2018年有所改善.
- 塔吉克斯坦 (0.495) 和土库曼斯坦 (0.402) 经历了 WRUE 的下降;农业用水的投入冗余性很高.
结论:
- CV-DEA模型提供了对WRUE的更可靠的评估.
- 农业用水的输入冗余是限制阿拉尔海盆地的WRUE的主要因素.
- 针对农业用水管理的有针对性的干预措施对于改善区域水安全至关重要.
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