Evaluation of the WARMF model for hydrologic simulation in the Hangbu-Fengle river watershed
基于WARMF模型的杭埠-丰乐河流域水文模拟研究

The Watershed Analysis Risk Management Framework (WARMF) model was applied for hydrologic simulation in the Hangbu-Fengle River Watershed of Chaohu Lake, Anhui Province, China. The study area was divided into 37 catchments using the AVSWAT2000 model. Based on analysis of the relationships between topography and soil type, soil profile structure and groundwater table within the study area, the 37 catchments were further classified into groups and the thickness of the soil layers in each catchment group was estimated. Observed hydrologic data in 2000~2003 were used for model calibration and validation. The results indicated that the WARMF model was applicable for hydrologic simulation in the Hangbu-Fengle River watershed. Compared to the SWAT model (AVSWAT 2000), the WARMF model gave better performance for daily simulations. Based on the model simulation results, the watershed hydrologic cycle from rainfall to the water in Chaohu Lake was analyzed on a spatial scale; the distribution of precipitation and runoff, and their corresponding relationships were studied on a temporal scale. Watershed generalization, model calibration and validation, and temporal and spatial scale analyses are significant for watershed hydrological and environmental research.