【摘要】 基于SEBAL能量平衡模型,利用Landsat 8和MODIS L1B遥感数据,对北京市蔡家河流域平原造林区的蒸散发量进行估算,并采用FAO-Penman模型反演得到的潜在蒸散发量对其进行了验证。结果表明:研究区不同季节的蒸散发量差异较大,以夏季的蒸散发量最大,以春季的蒸散发量最小;不同土地利用类型的的蒸散发量,春、夏季均为幼林>农田>成林,秋季为幼林>成林>农田;不同树种的蒸散发量差异很大,其中以柳树、杨树和槐树等树种的蒸散发量较大,以松柏等树种的蒸散发量最小。更多还原

【Abstract】 This article is based on SEBAL energy balance model,selected Landsat 8 and MODIS L1 B remote sensing data,estimated and analyzed the evapotranspiration of Yanqing Caijia River plain afforestation project and validated by Potential evapotranspiration obtained from FAO-Penman model. The results show that the evapotranspiration varies greatly in different sensons,in summer the evapotranspiration is the largest,but in spring it is the smallest; For different types of land use,in spring and summer the evapotranspiration is yong forest > farmland > Forest,and in fall the evapotranspiration is yong forest > Forest > farmland; besides,there is a large difference evapotranspiration between species,which the willow,the poplar and the acacia have the largest evapotranspiration,and the Pine has the smallest.更多还原