不同土地利用/覆被条件下松嫩盆地降水入渗补给量研究

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

土地利用／覆被条件是降水入渗补给量的主要影响因素，近10年来松嫩盆地土地利用／覆被变化显著。本次研究采WetSpass模型计算土地利用／覆被条件不同对降水入渗补给量的影响。定性分析不同土地利用／覆被类型的转化对降水入渗补给量的影响，并计算1995-2005这10年间，松嫩盆地的土地利用／覆被条件变化对其年均降水入渗补给量的影响。

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.