Abstract: The background of global climate change was briefly summarized in this paper.On the basis of this,the comprehensive effect of various factors lncluding seawater temperature.sunspots activities,volcanic explosion CO₂ concentration change,O₃ concentration change and characteristic of general atmospheric circulation index on the climate change and the tendency of climate change of ten years in future in HeiLongJiang province was predicted according to the quantitative and qualitative relationships among the historical climate data in the past one hundred years, various factors as stated above and climate change of HeiLongJiang province.The results showed:The climate of ten years in future will be mainly warm and dry.There will be still annual fluctuation.Although the general tendency of climate change accords with global climate change, the regional characteristic is also distinct.The probable influence of climatechange on forestry was put forward and the forestry response strategies was elementarily discussed.

Key words: Climate change, Greenhouse effect, Ecology, Forest