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沈阳市苏家屯区以苹果梨为主的果业发展有将近４０年的历史，现有苹果梨园３３３３hm２，近１００万株，栽培规模、技术、产量在省内具有一定的领先地位，居全市之首。由于２０００／２００１年冬的严重冻害和深度干旱，致使全区苹果梨受害严重。为摸清苹果梨冻害情况，于２０
Nearly 40 years of fruit industry development in Shenyang’s Sujiatun District mainly focus on apple pears. The existing 33,300 hm 2 apple orchards and nearly 1 million trees have a leading position in the province for their cultivation scale, technology and output. First of all. As a result of the severe freeze-thaw and deep drought in the winter of 2000/2001, the pears in the region suffered serious injuries. In order to find out the damage of apple pears, at 20