阿勒泰地区干热风发生规律及防御研究

Study on Occurrence Regularity and Defense of Dry Hot Wind in Altay Area

利用阿勒泰地区1961—2018年夏季逐日气温、相对湿度、风资料,基于新疆干热风发生指标,探讨阿勒泰地区小麦主产区1961年以来干热风的发生规律,对阿勒泰小麦产区干热风进行风险评估。结果表明,20世纪60年代为干热风高发期,之后发生率呈明显下降趋势。其中21世纪以来为低发期;布尔津县60年代干热风发生日数占总次数的32%,西南部为干热风影响高风险区,而中东部为干热风影响低风险区,并依此提出防御对策。

Based on the occurrence index of dry hot wind,the daily temperature,relative humidity and wind data from 1961 to 2018 in Altay region,the occurrence regularity of dry hot wind in main wheat producing areas in Altay since 1961 was discussed.The results showed that the dry hot wind occurred frequently in the 1960s,and then the occurrence rate decreased obviously.In addition,the risk assessment of dry hot wind in main wheat producing areas in Altay is that the risk in southwest is higher than that in middle and east.