摘要
为定量研究径流对土地利用变化的响应,以淮河上游潢川流域为例,分析不同时期土地利用空间转移规律,结合SWAT模型,通过选取典型子流域,定量分析流域土地利用变化对径流的影响。结果表明:在不同时期,研究区旱地面积变化较大,主要转化为水田与林地,草地、城镇用地及水域几乎没有变化;研究区土地利用方式的改变导致年径流深明显减小,原因是水田大面积增多能够促进水面蒸散发,同时林地的增多也滞缓了径流汇集速度,进一步增加了蒸发。
In order to study the response of runoff to the land use change,this study took the Huangchuan basin as an example.Huangchuan basin is located at the upper stream of Huaihe River.The characteristics of land use change in different periods were analyzed.By combining the SWAT model and selecting typical sub-basins,the impact of land use change on runoff was analyzed quantitatively.The results show that in different periods,the area of dry land changes a lot in the research area,which mainly changes into paddy field and forest land.However,there is almost no change in grassland,urban land and water area.Because of the paddy field can promote water surface evaporation,the change of land use pattern leads in a significant decrease of annual runoff.At the same time,the increase of woodland also delays the conver-gence of runoff and increases the evaporation.
作者
吴淼
石朋
张行南
瞿思敏
陈昂
WU Miao;SHI Peng;ZHANG Xingnan;QU Simin;CHEN Ang(College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China;State Key Laboratory of Hydrology.Water Resources and Hydraulic Engineering, Hohai University,Nanjing 210098, China;National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Nanjing 210098, China;National Cooperative Innovation Center for Water Safety & Hydro.Science, Nanjing 210098, China;Institute of Hydropower and Environment Research, China Three Gorges Corporation, Beijing 100012, China;School of Civil Engineering, Tsinghua University, Beijing 100084, China)
出处
《人民黄河》
CAS
北大核心
2018年第3期39-43,共5页
Yellow River
基金
国家自然科学基金资助项目(51479062
51420105014)
中国博士后科学基金资助项目(2016M592404)
