摘要
基于SWAT(soil and water assessment tool)模型,在盘龙江流域的水文过程模拟的基础上,分别采用1994、2000、2008年土地利用数据来定量评价盘龙江流域1994-2008年土地利用变化对流域水文过程影响。结果表明:①1994-2008年,在林地、农业用地面积减少,建设用地、草地、水域、裸地面积增加的影响下,盘龙江流域单位面积的侧向流和基流分别降低7.08和4.25 mm;地表径流、实际蒸发和潜在蒸发分别增加13.69、2.51和2.20 mm;径流总量共增加2.36 mm。②地表径流和侧向流与实际蒸发、潜在蒸发及径流总量相比,前者对土地利用变化的响应在雨季更为敏感,而后者则表现在旱季。
The runoff process of Panlong River Basin is simulated based on SWAT(soil and water assessment tool),and the model is droved by using different land use data of 1994,2000 and 2008 to evaluate quantitatively the influence of land use change on the process of runoff production in Panlong River Basin.The results show that①from 1994 to 2008,the influence of the area of forest agricultural land was reduced,the area of construction land,grassland,water area and bare land area was increased,the lateral flow and base flow per unit area in Panlong River Basin was decreased by 7.08 and 4.25 mm respectively.The surface runoff,actual evaporation and potential evapotranspiration were increased by 13.69,2.51 and 2.20 mm,respectively.The total runoff was increased by 2.36 mm.②Compared with actual evaporation,potential evaporation and total runoff,the former is more sensitive to land use change in rainy seasons,while the latter is in dry seasons.
作者
杨丽萍
邹进
YANG Li-ping;ZOU Jin(Yunnan Hydrology and Water Resources Bureau,Kunming 650100,China;College of Electrical Power Engineering, Kunming University of Science and Technology, Kunming 650100, China)
出处
《中国农村水利水电》
北大核心
2020年第7期36-40,45,共6页
China Rural Water and Hydropower
基金
云南省教育厅科学研究基金(2018JS749)
国家自然科学基金资助项目(41061053)。
