关键词: 彭曼蒸散发模型; 双源蒸散发模型; 植物生长模型; 湿润地区; 淮河流域;

Abstract: In order to compare the applicability of different evapotranspiration models in estimating moist area evapotranspiration, we taking the basin above Dapoling in Huaihe River as research object. Distributed Penman-Monteith evapotranspiration model and dual-source evapotranspiration model which could reflect the dynamic evolution process were built. The daily potential evapotranspiration of 2010～2018 was calculated by the evapotranspiration models and compared with the pan evaporation. The results indicated that good temporal similarity and consistence occurred between the potential evapotranspiration calculated by the above two models and the measured values. The correlation between dual-source evapotranspiration model and evaporation pan was better than the Penman-Monteith evapotranspiration model. The results could provide support for the estimation of moist area evapotranspiration.

Key words: Penman-Monteith evapotranspiration model; dual-source evapotranspiration model; plant growth model; moist area; Huaihe Basin;