基于SWAT模型的喀斯特小流域产沙产流模拟研究  

Simulation Study of Runoff and Sediment Yield in a Small Karst Watershed Based on SWAT Model

作　　者：代杰 张斌 杨丽[3] DAI Jie;ZHANG Bin;YANG Li(Guizhou Institute of Natural Resources Surveying and Planning,Guiyang 550004,China;The Third Institute of Surveying and Mapping of Guizhou Province,Guiyang 550004,China;College of Geography and Environmental Science,Guizhou Normal University,Guiyang 550001,China)

机构地区：[1]贵州省自然资源勘测规划研究院,贵州贵阳550004 [2]贵州省第三测绘院,贵州贵阳550004 [3]贵州师范大学地理与环境科学学院,贵州贵阳550001

出　　处：《测绘与空间地理信息》2024年第8期199-203,共5页Geomatics & Spatial Information Technology

摘　　要：为探讨喀斯特流域的产沙产流特性,本文以羊鸡冲小流域为研究区,利用2015—2019年实测水文数据、DEM、土地利用、气象、土壤等数据,建立SWAT模型,模拟出径流、泥沙的模拟结果,并分析流域产沙产流特征。结果表明:SWAT模型在率定期和验证期的数值模拟均满足评价标准,模拟结果优良,模型在喀斯特小流域具备一定的适用性;月降雨量和月径流量呈明显的正相关关系,和降雨相比,径流的年内变化更为剧烈;产沙量主要集中在雨季汛期,产沙月幅度变化大于月度径流量的变化。该研究旨在为喀斯特小流域的水资源管理提供参考依据。In order to explore the characteristics of runoff and sediment yield in Karst watershed,this paper takes Yangjichong small watershed as the research area,and uses the measured hydrological data,DEM,land use data,meteorological data and soil data from 2015 to 2019 to establish SWAT model.The simulation results of runoff and sediment are simulated,and the characteristics of runoff and sediment yield in the watershed are analyzed.The results show that the numerical simulation of the SWAT model meets the evaluation criteria in both the rate period and the validation period,the simulation results are excellent,and the SWAT model has certain applicability in the Karst watershed.There is a significant positive correlation between monthly rainfall and monthly runoff.Compared with rainfall,the annual change of runoff is more intense.The sediment yield is mainly concentrated in the rainy season.The monthly variation of sediment yield is greater than that of monthly runoff.It can provide reference for water resources management in Karst small watershed.

关 键 词：SWAT 径流 泥沙 降雨 喀斯特 

分 类 号：P25[天文地球—测绘科学与技术] X171[环境科学与工程—环境科学]