Regression Analysis of Artificial Hail Suppression Effect in Akesu Prefecture of Southern Xinjiang

【 Objective 】 To further evaluate the differences of annual hailstorm areas before and after the scientifically carrying out artificial hail suppression period in Aksu in the hope of analyzing the effect.【 Method 】In this paper, the method of the regression test of areas was applied, the differences of annual hailstorm areas before and after 18 a of the scientifically carrying out artificial hail suppression period in Akesu were analyzed with annual hailstorm areas data from 1978 - 2013 in Aksu and Kashi with 1996 as the year of artificial hail suppression.【 Result 】The results showed that the average annual hail area was reduced 23,802 hm², and the relative loss rate was 54.5% after the operation of scientifically artificial hail suppression in Aksu. Combined with the agricultural economic data, the average annual reduction of hail disaster loss was 444,170,000 RMB, annual input and output ratio nearly was 1∶10. The statistical significant level highly reached α=0.01.【 Conclusion 】Therefore, through scientifically carrying out artificial hail suppression operations, it is obvious that hail disaster losses reduced and the social and economic benefits are great in Aksu.