气候变化与人类活动双重驱动下的大夏河流域水文演变：特征、趋势与调控对策

关键词：大夏河流域；气候变化；人类活动；水文演变；水资源管理

中图分类号：P339 文献标志码：A 文章编号:1003-5168(2025)23-0098-05

DOI:10.19968/j.cnki.hnkj.1003-5168.2025.23.017

Hydrological Evolution in the Daxia River Basin Driven by Both Climate Change and Human Activities: Characteristics, Trends and Regulatory Countermeasures

ZHOU Xinglong ZHONG Fujie (Hydrological and Water ResourcesSurvey Center,Dingxi 73o5Oo, China)

Abstract: [Purposes] This study investigates the hydrological evolution mechanisms of the Daxia River Basin under the dual drivers of climate change and human activities,aiming to elucidate the mechanisms leading to the spatiotemporal heterogeneity of water resources,runoff process alterations,and reduced stability of the eco-hydrological system.It seeks to provide a theoretical basis for optimizing water resource management and ensuring ecological security in the basin. [Methods] Based on multi-source hydro-meteorological data and hydrological models,this study analyzes the evolution characteristics of precipitation,runof,hydrological regimes and groundwater dynamics.It further explores the hydrological response mechanisms and the interactions between climate change and human activities.[Findings] The results indicate that rising temperatures,changes in precipitation paterns,and the increased frequency of extreme hydrological events significantly affect the basin's hydrological processes. Concurrently,human activities such as land use changes and the operation of water conservancy projects also profoundly impact runoff. [Conclusions] To address water resource security and ecological environment issues , strategies including optimizing water resource alocation,enhancing eco-hydrological regulation,and improving water conservancy project management are proposed.These measures aim to increase water resource utilization efficiency and ecosystem stability,thereby providing scientific support for the sustainable development of the basin.

Keywords: Daxia River Basin; climate change;human activities; hydrological evolution; water resources management

0 引言

全球气候变化和人类活动的双重驱动深刻影响着流域水文循环过程，具体表现为降水时空格局变化、蒸散发强度调整、径流波动加剧及极端水文事件发生频率增加。（剩余7134字）