Comparison of the soil evaporation and trees transpiration for Fraxinus mandshurica- Populus davidiana forest, Tilia mandshurica forest and Quercus monglica forest

By using of field observation and room analysis, the characteristics of evapotranspiration of three forest types beside Songhua River were studied through measure forest land evaporation and forest transpiration.The results showed that: (1) Forest land evaporation of Fraxinus mandshurica-Populus davidiana forest, Tilia mandshurica forest and Quercus monglica forest is 79.88 mm, 62.46 mm and 42.72 mm, respectively; (2) Transpiration of Fraxinus mandshurica-Populus davidiana forest, Tilia mandshurica forest and Quercus monglica forest is 148.67 mm, 128.24 mm and 124.64 mm ,respectively; (3) Evapotranspiration of Fraxinus mandshurica-Populus davidiana forest, Tilia mandshurica forest and Quercus monglica forest is 228.55 mm, 190.7 mm and 167.30mm, respectively.