专家解析频繁阴雨对中国秋收影响|蜜臀AV一区二区

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  中新社北京10月10日电 9月以来,中国北方多地降雨频繁,西北地区东部、华北南部和黄淮出现多轮降水天气过程,多地出现破纪录降雨。频繁阴雨天气给中国秋收秋种带来哪些影响?国家气象中心生态和农业气象室主任、正研级高工侯英雨受访时予以解析。

  侯英雨表示,今年华西秋雨呈现出开始早、持续久、雨量大等特点。9月以来,西北地区东部、华北南部和黄淮出现多轮降水天气过程,大部地区降水量100毫米以上,较常年同期偏多1至4倍,其中,陕西南部、山西南部、河南大部、山东大部、安徽淮北等地降水量达250至400毫米、部分地区达400至600毫米,降水日数达20至30天,较常年同期偏多5至18天,日照偏少五至九成。

  秋收连阴雨是指在秋季农作物(如玉米、水稻、大豆、棉花等)成熟收割关键期(通常为9月至10月)出现的持续性阴雨天气,主要特点是降水持续时间长(3天及以上)、空气湿度高、日照严重不足,且恰逢秋收作物“成熟-收割-晾晒-储存”关键环节,对农业生产的影响远大于其他季节的连阴雨,是秋收季的主要农业气象灾害之一。

  “受连阴雨影响,部分田块玉米、花生可能出现霉变,影响品质。另外,由于农田过湿,机收作业困难,会影响秋收进度,从而导致麦播茬口紧,影响冬小麦适时播种。”侯英雨说。

  10月9日,农业农村部和中国气象局联合发布连阴雨和农田渍涝灾害风险预警,预计10日至12日,西北地区东部、华北中南部、黄淮北部仍多降水天气,陕西中北部、甘肃陇东、山西中南部、河北南部、河南北部、山东北部连阴雨和农田渍涝风险较高(黄色预警),部分地区风险高(橙色预警),将导致秋收作物收获受阻,进度偏慢。

  农业农村部最新农情调度显示,中国秋粮收获近四成。

  中央气象台预计,未来10天,西北地区东部、华北、黄淮、四川盆地等地降水日数多、累计雨量大,陕西南部和四川东北部的部分地区有暴雨或大暴雨。

  侯英雨建议,上述地区要密切关注天气变化,抓住降雨间歇期,积极避雨抢收抢晒成熟秋粮,并注意通风储存或烘干入库,防范籽粒发芽霉变,已收地区及时整地散墒,力争在适播期内完成冬小麦播种工作,确保冬小麦冬前形成壮苗。(完)

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