人类活动与气候变化对海河流域径流影响的尺度效应OA北大核心CHSSCDCSTPCD
Scaling Effects of Anthropogenic and Climate Change Impacts on Runoff in the Haihe River Basin
海河流域是华北平原最主要的水源供给流域,主要产流集中在上游土石山区.近 50a来该区域的径流量呈现持续减少趋势,导致区域水资源危机.选取海河流域山区 57 个有长时间序列水文和气象数据的子流域作为研究对象,基于区域水文、气象数据,利用M-K检验分析了径流随时间序列的变化趋势,通过敏感性分析分离了气候变化和人类活动对区域内不同尺度流域径流的贡献率.结果显示,面积较大的流域径流更容易受到降雨和潜在蒸散发改变的影响,在小尺度和大尺度流域上人类活动对径流变化的贡献率显著高于气候变化,在较为干燥的地区人类活动导致的径流变化较大.
The Haihe River Basin is the primary water supply basin in the North China Plain.The runoff generation is mainly concentrated in the soil and rocky mountains upstream.Over the past 50 years,the region has experienced a contin-uous decrease in runoff,resulting in water resource crisis.This paper analyses the trend of runoff over time series in 57 sub-basins with long-term hydrological and meteorological data in the mountainous areas of the Haihe River Basin.The M-K test was employed to analyse the data,and sensitivity analysis was conducted to distinguish the contributions of climate change and human activities to runoff from watersheds of different scales in the region.The study revealed that runoff from larger watersheds is more susceptible to changes in rainfall and potential evapotranspiration.It has been demonstrated that the impact of human activities is significantly greater than climate change on changes in runoff in both small-and large-scale watersheds.This effect is particularly pronounced in drier regions.
王婧雯;冉佳琳;吴伟;尚芮岩;张姝涵;张振明;张明祥;刘佳凯
北京林业大学生态与自然保护学院,北京 100083||黄河流域生态保护国家林业和草原局重点实验室,北京 100083北京林业大学生态与自然保护学院,北京 100083北京市潮白河管理处,北京 101300北京林业大学生态与自然保护学院,北京 100083||黄河流域生态保护国家林业和草原局重点实验室,北京 100083||国家林业和草原局自然保护区研究中心,北京 100083
环境科学
海河流域气候变化人类活动生态水文多尺度
Haihe River Basinclimatic changehuman activitieseco-hydrologymulti-scale
《生态与农村环境学报》 2024 (006)
757-765 / 9
国家自然科学基金青年科学基金(42307573);北京林业大学科技计划项目(BLX202250,BFUKF202318)
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