用新的评价体系框架探讨流域水调节功能及其稳定性的演化规律

IF 6.3 1区地球科学 Q1 ENGINEERING, CIVIL

Journal of Hydrology Pub Date : 2025-06-22 DOI:10.1016/j.jhydrol.2025.133746

Jiping Yao , Liang Wentao , Xiaoman Jiang , Ruihong Yu , Shen Qu , Yanling Hao , Zhendong Yang , Wenxing Zhang , Xiaojing Zhang , Jiajun Li , Jie Su

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引用次数: 0

摘要

流域水调节及其稳定对于准确跟踪水资源枯竭来源、持续改善水资源状况至关重要。由此，从流域吸收和排放来水的物理过程出发，建立了水调节函数（WRF）指标体系和水调节系数。并结合SWAT模型和构建的水文恢复力评价模型，定量分析了半干旱流域水资源流量及其稳定性演化规律。结果表明：该流域在过去42 年表现出蓄水量，受降水增加和植被土壤黏度增大的影响，蓄水量强度显著降低（R = −0.57,P <； 0.01）。与蓄水能力强的草原相比，高海拔降水丰富的林区排水能力强。然而，随着气温的大幅升高和乔木林的集约种植，当地森林的WRF由排水向储水转变，加剧了当地水资源的短缺。此外，含水层蓄水水平适应性差导致水资源资源稳定性不断下降，而加强地表水生产效率和土壤产水强度的适应性是维持较高稳定水平的关键。此外，流域大部分地区的水资源从几乎丧失或极度脆弱到勉强维持稳定或迅速恢复稳定。随着储水范围的不断扩大，大部分地区根系储水能力和土壤储水效率成为影响WRF稳定性的关键因素。研究结果对流域水资源的合理利用和因地制宜的植被恢复具有重要的指导价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Exploring the evolution law of watershed water regulation function and its stability using a novel assessment system framework

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Exploring the evolution law of watershed water regulation function and its stability using a novel assessment system framework

Watershed water regulation and its stability are crucial for accurately tracking the sources of water resource depletion and continuously improving water resources conditions. Thus, a water regulation function (WRF) index system and a water regulation coefficient were established from the physical process of watershed absorption and discharge of incoming water. These were coupled with the SWAT model and the constructed hydrological resilience assessment model to quantitatively analyze the WRF and its stability evolution law in a semi-arid watershed. The results showed that the watershed exhibited water storage over the past 42 years, and the water storage intensity significantly decreased (R = −0.57, P < 0.01) by the influence of increased precipitation and greater soil viscosity of vegetation. Compared to grasslands with stronger water storage, forested areas at higher elevations with abundant precipitation exhibited stronger water discharge. However, with the substantial increase of temperature and the intensive planting of arbor forest, the WRF of local forests shifted from water discharge to water storage, exacerbating the local water resource deficits. In addition, the poor adaptability of aquifer water storage level led to the continuous decrease of WRF stability, while the strengthening fitness of surface water production efficiency and soil water yield intensity was key to maintaining a higher stability level. Moreover, the WRF in a large area of the watershed improved from almost loss or extremely fragile to barely maintaining stability or quickly restoring stability. With the continuous expansion of the water storage range, the root water storage capacity and soil moisture storage efficiency became the key factors affecting the WRF stability in most areas. Our finding has important guiding value for the rational utilization of watershed water resources and the restoration of vegetation by local conditions.

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来源期刊

Journal of Hydrology 地学-地球科学综合

CiteScore

11.00

自引率

12.50%

发文量

1309

审稿时长

7.5 months

期刊介绍： The Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology and hydrogeology. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, hydraulics, agrohydrology, geomorphology, soil science, instrumentation and remote sensing, civil and environmental engineering are included. Social science perspectives on hydrological problems such as resource and ecological economics, environmental sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site.