马莲河流域固沟保塬工程水文响应变化及优化  

Hydrologic response change and optimization of gully consolidation and highland protection in the Malian River basin based on CMADS and SWAT model

作　　者：霍艾迪[1,2] 赵志欣 王星[1,2] 杨璐莹 钟芳倩 陈建[1,2] HUO Aidi;ZHAO Zhixin;WANG Xing;YANG Luying;ZHONG Fangqian;CHEN Jian(School of Water and Environment,Chang′an University,Xi′an 710054,China;Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region,Ministry of Education,Chang′an University,Xi′an 710054,China)

机构地区：[1]长安大学水利与环境学院,陕西西安710054 [2]长安大学旱区地下水文与生态效应教育部重点实验室,陕西西安710054

出　　处：《水科学进展》2023年第6期867-876,共10页Advances in Water Science

基　　金：国家自然科学基金资助项目(42261144749,41877232)。

摘　　要：由于气候变化、土地利用变化及固沟保塬工程实施,黄土高原的水文循环变化备受世界关注。基于SWAT模型和中国大气同化驱动数据集(CMADS),定量分析了固沟保塬工程和4种土地利用情景对马莲河流域水文循环演变的影响。结果表明:SWAT+CMADS模式能够很好地模拟马莲河的水文变化过程;1995—2020年间,流域内年平均径流量减少了13087.50万m 3,降幅达到4.56%;流域内退耕坡耕地全部还林/还草情景较2020年土地利用情景相比,年平均径流量分别减少了283.80万、1923.70万m 3,固沟保塬工程(沟头填埋)情景下年平均径流量减少了1135.30万m 3。模拟研究固沟保塬工程和土地利用变化对马莲河流域径流的影响在生态环境保护和可持续发展方面具有十分重要的现实意义。The hydrological cycle changes in the Loess Plateau have attracted a global attention due to the combination of climate,land use changes,and the implementation of gully consolidation and highland protection(GCHP)project.The Soil and Water Assessment Tool(SWAT)model and the China Meteorological Assimilation Driving Datasets(CMADS)were used to quantitatively analyse the effects of the GCHP project and four distinct land use scenarios on the evolution of the hydrological cycle in the Malian River basin.The results indicate that the SWAT and CMADS model effectively simulates the hydrological process changes in the basin.From 1995 to 2020,there was a decrease in the annual average runoff volume within the basin by 130.8750 million m 3,representing a reduction of 4.56%.Compared to the land use scenario in 2020,the average annual runoff in the scenario of converting all farmland back to forest/grassland in the basin decreased by 2.8380 million m 3 and 19.2370 million m 3,respectively while the average annual runoff in the scenario of GCHP project(gully head landfill)decreased by 11.3530 million m 3.The simulation study on the impact of GCHP project and land use changes on runoff in the Malian River basin has significant practical implications for ecological environment protection and sustainable development.

关 键 词：水文响应 固沟保塬工程 中国大气同化驱动数据集(CMADS) SWAT模型 马莲河流域 

分 类 号：TV121[水利工程—水文学及水资源]