摘要
SWAT模型已有针对北美地区流域建立的数据库,将模型应用于我国流域时,需要另行构建数据库,主要包括土壤数据库和天气发生器。以清江流域作为研究对象,分别采用SPAW程序和土壤渗透率经验公式估算土壤水分参数及土壤下渗率,对研究区土壤按美国标准采用水文分组等方法建立土壤数据库;利用PcpSTAT、Dew02等程序估算部分难获得的气象因子,构建天气发生器。依据前述数据库建立的SWAT模型对清江流域径流分别进行月模拟和日模拟,结果表明,构建的SWAT模型在清江流域的应用取得了良好效果,模拟精度较高,对该地区水资源管理具有一定的参考和借鉴价值。
SWAT model was originally designed for North American river basins. To apply the model in China, the databases, especially soil database and weather generator, have to be modified to suit Chinese data standards. Taking Qingjiang River Basin as a research object, the SPAW program and empirical formula on soil permeability were used to estimate the soil moisture parameters and soil infiltration rate, and the soil database was also built by hydrological grouping method according to US standards. The partial weather factors that are hardly obtained were estimated by PcpSTAT, Dew02 programs, so as to establish the weather generator. The monthly and daily runoff simulations in Qingjiang River Basin were conducted by the SWAT model established based on above database. The results indicate that the application of SWAT model on Qingjiang River Basin obtains satisfactory simulation accuracy, therefore it will be an effective tool to be applied in the water resources management of this area.
出处
《人民长江》
北大核心
2013年第22期25-29,42,共6页
Yangtze River
基金
水利部公益性行业科研专项项目(201301066)
