The Cooling Effect of Oasis Reservoir-Riparian Forest Systems in Arid Regions

IF 4.6 1区地球科学 Q2 ENVIRONMENTAL SCIENCES Water Resources Research Pub Date : 2024-10-24 DOI:10.1029/2024wr038301

Yinying Jiao, Guofeng Zhu, Siyu Lu, Linlin Ye, Dongdong Qiu, Gaojia Meng, Qinqin Wang, Rui Li, Longhu Chen, Yuhao Wang, Dehong Si, Wentong Li

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Abstract

In arid regions with limited water resources, numerous reservoirs have been built to support economic and social development. However, how the construction of reservoirs interacts with the surrounding ecosystem to affect temperature remains unclear. Spanning 2018 to 2022 in the Shiyang River Basin, we collected surface water and precipitation, as well as stem and soil samples. Using isotopic methods, we quantified how evaporation in the oasis reservoir-riparian forest system affects the local climate. Our findings show that the latent heat released by evapotranspiration from the reservoir and riparian forest system reduces the daily maximum temperature and daily temperature range by 7°C and 6°C respectively, compared to downstream areas with sparse vegetation around artificial lakes. Additionally, it enhances local moisture recycling, increasing precipitation. This study reveals regional cooling effect due to interactions between water bodies, the atmosphere, and vegetation. We propose that establishing reservoir-riparian forest systems can positively impact local climate regulation and serve as an effective strategy for adapting to global climate warming.

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干旱地区绿洲水库-濒危森林系统的降温效应

在水资源有限的干旱地区，人们修建了大量水库来支持经济和社会发展。然而，水库的建设如何与周围的生态系统相互作用以影响温度仍不清楚。从 2018 年到 2022 年，我们在石羊河流域收集了地表水和降水，以及茎秆和土壤样本。利用同位素方法，我们量化了绿洲水库-石林系统的蒸发如何影响当地气候。我们的研究结果表明，与人工湖周围植被稀疏的下游地区相比，水库和河岸森林系统蒸发释放的潜热可将日最高气温和日温差分别降低 7°C 和 6°C。此外，它还加强了当地的水分循环，增加了降水量。这项研究揭示了水体、大气和植被之间的相互作用所产生的区域降温效应。我们建议，建立水库-滨河森林系统可对当地气候调节产生积极影响，并可作为适应全球气候变暖的有效策略。

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来源期刊

Water Resources Research 环境科学-湖沼学

CiteScore

8.80

自引率

13.00%

发文量

599

审稿时长

3.5 months

期刊介绍： Water Resources Research (WRR) is an interdisciplinary journal that focuses on hydrology and water resources. It publishes original research in the natural and social sciences of water. It emphasizes the role of water in the Earth system, including physical, chemical, biological, and ecological processes in water resources research and management, including social, policy, and public health implications. It encompasses observational, experimental, theoretical, analytical, numerical, and data-driven approaches that advance the science of water and its management. Submissions are evaluated for their novelty, accuracy, significance, and broader implications of the findings.