Study on rainfall infiltration recharge under conditions of difference land use and cover in Songnen basin

The condition of the land use and cover is the main influence factor of the rainfall infiltration recharge.In the past 10 years,conditions of land use/cover have changed obviously.By using the WetSpass model,the paper calculates the rainfall infiltration recharge influence under the difference condition of land use and cover,analyzes the rainfall infiltration recharge influence under the transformation of land use and cover and calculates the annual average rainfall infiltration recharge influence under the condition change of land use and cover in Songnen basin in the 10-year period from 1995 to 2005.