Abstract: Based on observed temperature and precipitation data from 1961-2000 and climate projection in the first 50 years of the 21st century by ECHAM5/MPI-OM, changes of annual temperature and precipitation in the Songhua River basin were analyzed. The results show that annual temperature has increased dramatically since the beginning of the 1980s under global warming, but annual precipitation had no significant change trends except small decadal variations from 1961 to 2000. Relative to 1961-1990, annual temperature will increase significantly in the first 50 years of the 21st century, with an increment of more than 1℃ before the end of the 2040s; and annual precipitation will show no obvious trends in the first 50 years of the 21st century, but winter precipitation and temperature will increase, and spring precipitation will also increase.

Key words: Songhua River basin, temperature, precipitation, climate change, projection