[Objective]The distribution and charcteristics of freeze-thaw erosion in Heilongjiang Province were explored to provide basis for sustainable development of agriculture in black soil area.[Methods]On the basis of investigation and analysis of influence factors of the freezing and thawing erosion of Heilongjiang Province,the distribution of freeze-thaw erosion was determined by method of analytic hierarchy process(AHP)and by referring other relevant research.[Results]The scope of freeze-thaw erosion is in 13...