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石河子垦区的下野地、莫索湾灌区,位于准噶尔盆地古尔班通古特大沙漠的南缘,冬季处于大陆性冷高压控制下,气候严寒,降雪少,积雪不稳定,冬麦常受冻死亡。统计这两灌区1960年以来22年中冬麦越冬冻害情况,如以冻害面积占27—71％为中度冻害,71％以上为重度冻害,27％以下为无或轻度冻害,则中度冻害和重度冻害年份各占18％,即10年中约有4年发生中度以上的冻害,毁灭性冻害5年中发生一次;3年中有2年不发生中度以上的冻害概率为0.44。这说明,莫索湾、下野地灌区冬小麦越冬期间
Shihezi reclamation area of the lower reaches, Moso Bay irrigation area, located in Junggar Basin, Gurbantunggut desert on the southern margin of the winter in the continental cold high pressure control, the climate is cold, less snow, snow is not stable, winter wheat often cold death. The winter freezing damage of winter wheat over the past 22 years since 1960 was statistically calculated. For example, freezing damage accounted for 27-71% of moderate freezing damage, over 71% severe freezing injury and less than 27% as no or mild freezing damage, Frost damage and severe frost damage accounted for 18% of each year, that is, about 10 years, about 4 years of moderate frost damage occurs, devastating frost damage occurred once in 5 years; 2 years in 3 years without moderate frost damage probability of 0.44 . This shows that Moso Bay, under the field irrigation winter wheat during the winter