Abstract: By using the Thonthwaite method, peak width at half height method, GIS technique and Kriging method, a comprehensive analysis is performed involving the effects of climate change on boundaries of eco-geographical regions for main forestry species in Heilongjiang Province. The results show that under the conditions of climate warming, the thermal boundary of temperate zone and warm-temperate zone moved towards east and north, and the thermal boundary of cool-temperate zone and temperate zone moved northwards significantly. Meanwhile, all the optimum and potential distributing regions of Larix gmelinii, Spruce fir forest and Pinus koraiensis have the tendency of moving northwards. The eco-geographical distributing area of Larix gmelinii reduced 6.28×104 km2, and on the contrary, those of Spruce fir forest and Pinus koraiensis increased 1.57×104 km2, respectively.

Key words: climate change, Heilongjiang Province, Larix gmelinii, Spruce fir forest, Pinus koraiensis