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E-CMRSET模型在揭示内陆河流域蒸发透气水消耗模式方面的优势

Hongxin Liu¹, Aihua Long², Yongmin Yang³

¹College of Management and Economics, Tianjin University, Tianjin, 300072, China; Department of Water Resources, State Key Laboratory of Water Cycle Simulation and Regulation, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China.

Journal of environmental management

|April 29, 2025

概括

塔林河流域的植被变化显著增加了蒸发转化,农田扩张是主要的驱动因素. 这会影响干旱地区的水资源.

科学领域:

地球和环境科学地球和环境科学
水文学的水文学
生态生态学生态生态学

背景情况:

植被对水循环至关重要,特别是在干旱地区,土壤水分控制了蒸发转化.
塔林河流域 (TRB) 由于管理项目增加了植被覆盖面,可能会增加蒸发和水压力.
了解这些变化对于干旱内陆盆地的水资源管理至关重要.

研究的目的:

为了评估Tarim河流域 (TRB) 的景观规模的蒸发透气,考虑植被和土壤湿度动态.
分析TRB内的不同植被类型的蒸发透气变化.
评估植被变化对区域用水量的影响.

主要方法:

采用了CSIRO MODIS增强的基于反射的缩放蒸发透气 (E-CMRSET) 模型,集成了植被和土壤湿度数据.
在TRB的各种植被类型中分析了蒸发透气.
与其他模型 (CMRSET,ERA5-Land,PMLV2,EB-ET,MOD16A2) 相比验证了E-CMRSET.

主要成果:

与其他模型相比,E-CMRSET模型在TRB中表现出卓越的性能.
植被变化显著改变了蒸发的时空模式.
农田扩张是盆地范围内的蒸发转化增加的主要驱动因素,特别是在绿洲周围.

结论:

植被的扩张,特别是农田,加剧了TRB的蒸发和水消耗.
偏远地区的植被减少使生态水资源受到压力.
这些发现为在干旱环境中蒸发透气模型和水资源管理提供了关键的见解.

关键词:

在 E-CMRSET 模型中.蒸发转化是指蒸发转化.内陆河流盆地内陆河流盆地土地使用变化.遥感是一种远程传感.

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