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气候变化增加的水体有利于减轻中亚地区的水危机
Yanan Su1, Shengqian Chen1, Yijie Sui1
1State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China.
Science bulletin
|April 19, 2025
概括
中亚的水危机感知受到新的发现的挑战. 尽管阿拉尔海的水量下降,但许多小型水体已经扩大,这表明气候变暖和潮湿的趋势.
科学领域:
- 水文学的水文学
- 环境科学 环境科学
- 气候科学 气候科学
背景情况:
- 中亚 (CA) 面临着严重的水资源危机,阿拉尔海的缩水显著说明了这一点.
- 该地区许多较小的水体的状况在很大程度上是未知的,尽管它们对气候变化的脆弱性和可持续性的重要性.
研究的目的:
- 调查1992年至2020年中亚地区水体的动态.
- 评估以前未经研究的小水体的范围和变化,了解区域水资源趋势.
主要方法:
- 利用卫星图像分析整个中亚的水体,其面积只有0.0045平方公里.
- 1992年至2020年间水体范围和数量的确定和量化变化.
主要成果:
- 在2020年确定了66,215个水体,其中82.2%之前没有研究过.
- 观察到水体区域扩张10.7% (8714.3平方公里),其中自1992年以来净增长了15831个湖泊.
- 他将较小水体的扩张与已记录的阿拉尔海的衰退进行了对比.
结论:
- 这些发现挑战了普遍认为中亚地区均干燥的观念.
- 有证据表明,区域温暖潮湿气候趋势正在重新分配水资源.
- 有机会改变水资源管理战略,以应对该地区的水资源危机.
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