下周阴晴不定 气温起伏较大
<section data-role="title" data-tools="135编辑器" data-id="138664" draggable="true"><section style="display: flex;justify-content: center;align-items: center;margin: 10px auto;"><section style="display: flex;justify-content: center;align-items: center;"><section style="width: 41px;margin-right: 6px;" data-width="41px"></section><section style="font-size: 16px;color: rgb(255, 255, 255);letter-spacing: 4px;line-height: 1.75em;padding: 6px 16px;background-color: rgb(36, 175, 240);border-style: none;border-width: 0px 1px 0px 0px;border-color: rgb(221, 221, 221);border-top-right-radius: 20px;border-bottom-right-radius: 20px;"><strong data-brushtype="text">天气实况</strong></section></section></section></section><p></p><section data-tools="135编辑器" data-id="138654" draggable="true"><section style="margin: 10px auto;"><section style="margin-top: 20px;padding: 10px;background-color: rgb(242, 251, 255);border-style: none;border-width: 4px;border-color: rgb(207, 240, 255);border-radius: 0px;"><section style="border-width: 1px;border-style: none;border-color: rgb(255, 255, 255);border-radius: 0px;"><section style="margin: 10px 10px 15px;letter-spacing: 1.5px;line-height: 1.75em;color: rgb(35, 24, 21);"><section data-autoskip="1" style=""><p style="font-size: 14px;text-align: center;"><span style="font-size: 14px;">过去一周我市以晴间多云天气为主</span></p><p style="font-size: 14px;text-align: center;">气温缓慢回升 <span style="caret-color: transparent;"></span></p><p style="font-size: 14px;text-align: center;"><span style="font-size: 14px;">过去一周 丹江口市气象台未发布预警信号</span></p></section></section></section></section></section></section><section data-role="title" data-tools="135编辑器" data-id="138664" draggable="true" style="letter-spacing: 0.578px;white-space: normal;"><section style="margin: 10px auto;display: flex;justify-content: center;align-items: center;"><section style="display: flex;justify-content: center;align-items: center;"><section data-width="41px" style="margin-right: 6px;width: 41px;"></section><section style="padding: 6px 16px;font-size: 16px;color: rgb(255, 255, 255);letter-spacing: 4px;line-height: 1.75em;background-color: rgb(36, 175, 240);border-style: none;border-width: 0px 1px 0px 0px;border-color: rgb(221, 221, 221);border-top-right-radius: 20px;border-bottom-right-radius: 20px;"><strong data-brushtype="text">天气预报</strong></section></section></section></section><section data-tools="135编辑器" data-id="138654" draggable="true" style="letter-spacing: 0.578px;white-space: normal;"><section style="margin: 10px auto;"><section style="margin-top: 20px;padding: 10px;background-color: rgb(242, 251, 255);border-style: none;border-width: 4px;border-color: rgb(207, 240, 255);border-radius: 0px;"><section style="border-width: 1px;border-style: none;border-color: rgb(255, 255, 255);border-radius: 0px;"><section style="margin: 10px 10px 15px;letter-spacing: 1.5px;line-height: 1.75em;color: rgb(35, 24, 21);"><section data-autoskip="1" style=""><p style="font-size: 14px;text-align: center;"><span style="font-size: 14px;caret-color: transparent;">预计下周(3月11日至3月17日)</span></p><p style="font-size: 14px;text-align: center;"><span style="font-size: 14px;caret-color: transparent;">我市</span><span style="caret-color: transparent;">以多云或阴天气为主 气温波动较大</span></p><p style="font-size: 14px;text-align: center;"><span style="font-size: 14px;">周最高气温<span style="font-size: 14px;color: rgb(35, 24, 21);letter-spacing: 1.5px;text-align: center;text-wrap: wrap;background-color: rgb(242, 251, 255);">24~26℃ 最低气温<span style="font-size: 14px;color: rgb(35, 24, 21);letter-spacing: 1.5px;text-align: center;text-wrap: wrap;background-color: rgb(242, 251, 255);">6~8℃</span></span></span></p><p style="text-align: center;"></p></section></section></section></section></section></section><section data-role="title" data-tools="135编辑器" data-id="138664" draggable="true" style="letter-spacing: 0.578px;white-space: normal;"><section style="margin: 10px auto;display: flex;justify-content: center;align-items: center;"><section style="display: flex;justify-content: center;align-items: center;"><section data-width="41px" style="margin-right: 6px;width: 41px;"></section><section style="padding: 6px 16px;font-size: 16px;color: rgb(255, 255, 255);letter-spacing: 4px;line-height: 1.75em;background-color: rgb(36, 175, 240);border-style: none;border-width: 0px 1px 0px 0px;border-color: rgb(221, 221, 221);border-top-right-radius: 20px;border-bottom-right-radius: 20px;"><strong data-brushtype="text">关注与建议</strong></section></section></section></section><section data-tools="135编辑器" data-id="138654" draggable="true" style="letter-spacing: 0.578px;white-space: normal;"><section style="margin: 10px auto;"><section style="margin-top: 20px;padding: 10px;background-color: rgb(242, 251, 255);border-style: none;border-width: 4px;border-color: rgb(207, 240, 255);border-radius: 0px;"><section style="border-width: 1px;border-style: none;border-color: rgb(255, 255, 255);border-radius: 0px;"><section style="margin: 10px 10px 15px;letter-spacing: 1.5px;font-size: 14px;line-height: 1.75em;color: rgb(35, 24, 21);"><section data-autoskip="1"><p style="text-align: center;">森林火险气象等级较高 </p><p style="text-align: center;">外出游玩注意野外用火安全</p></section></section></section></section></section></section><section data-role="title" data-tools="135编辑器" data-id="138664" draggable="true" style="letter-spacing: 0.578px;white-space: normal;"><section style="margin: 10px auto;display: flex;justify-content: center;align-items: center;"><section style="display: flex;justify-content: center;align-items: center;"><section data-width="41px" style="margin-right: 6px;width: 41px;"></section><section style="padding: 6px 16px;font-size: 16px;color: rgb(255, 255, 255);letter-spacing: 4px;line-height: 1.75em;background-color: rgb(36, 175, 240);border-style: none;border-width: 0px 1px 0px 0px;border-color: rgb(221, 221, 221);border-top-right-radius: 20px;border-bottom-right-radius: 20px;"><strong data-brushtype="text">气象小科普</strong></section></section></section></section><section data-tools="135编辑器" data-id="138654" draggable="true" style="letter-spacing: 0.578px;white-space: normal;"><section style="margin: 10px auto;"><section style="margin-top: 20px;padding: 10px;background-color: rgb(242, 251, 255);border-style: none;border-width: 4px;border-color: rgb(207, 240, 255);border-radius: 0px;"><section style="border-width: 1px;border-style: none;border-color: rgb(255, 255, 255);border-radius: 0px;"><section style="margin: 10px 10px 15px;letter-spacing: 1.5px;font-size: 14px;line-height: 1.75em;color: rgb(35, 24, 21);"><h1 style="font-variant-numeric: inherit;font-variant-east-asian: inherit;font-variant-alternates: inherit;font-variant-position: inherit;font-weight: 600;font-stretch: inherit;font-size: 24px;line-height: 1.22;font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Microsoft YaHei, Source Han Sans SC, Noto Sans CJK SC, WenQuanYi Micro Hei, sans-serif;font-optical-sizing: inherit;font-kerning: inherit;font-feature-settings: inherit;font-variation-settings: inherit;margin-top: 24px;margin-bottom: 24px;font-synthesis: style;color: rgb(25, 27, 31);letter-spacing: normal;text-align: center;text-wrap: wrap;background-color: rgb(255, 255, 255);"> <span style="font-size: 20px;">影响森林火险预警的气象因素</span></h1><section data-autoskip="1" style="text-align: center;"><p style="margin-right: 0cm;margin-left: 0cm;background: white;text-align: left;"><span style="mso-ascii-font-family:宋体;mso-ascii-theme-font:minor-fareast;mso-fareast-font-family:宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:宋体;mso-hansi-theme-font:minor-fareast;color:#191B1F;"> </span><span style="color: rgb(25, 27, 31);font-size: 15px;">森林火灾发生离不开森林可燃物、气象条件和火源。而“在气象要素中,降水量、气温、相对湿度、风等因素对于林火的发生有明显影响。</span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;text-align: left;"><span style="color: rgb(25, 27, 31);font-size: 15px;"> 降水量大小直接影响林区可燃物的含水量。如果一个地区的年降水量超过1500毫米,或月降水量超过100毫米,一般不发生或少发生森林火灾。</span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;text-align: left;"><span style="color: rgb(25, 27, 31);font-size: 15px;"> 日最高气温往往是该地着火与否的主要指标。林火发生最多的时间,多半是白天气温最高的时段。不过,高温也并非完全助长林火的“气焰”。一般气温在-10℃至25℃之间常有林火发生;如果气温在25℃以上,则以树木为代表的林区可燃物生长状况良好,体内含水量增加,发生林火机会反而随之减少。<o:p></o:p></span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;word-spacing: 0px;text-align: left;" data-pid="ZRpNTulH"><span style="font-size: 15px;color: rgb(25, 27, 31);"> 风对森林火灾的发生、发展有两个作用。一是使未燃烧的可燃物蒸发变干,易燃;二是可燃物燃烧后,通过风带来新鲜氧气,使火燃烧得更旺。风又是林火蔓延的重要因子,风速越大,火烧面积也越大。林区规定,在五级风以上的天气里,禁止一切野外用火。可见“风”是火险的一个明显标志。<o:p></o:p></span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;word-spacing: 0px;text-align: left;" data-pid="ZRpNTulH"><span style="font-size: 15px;color: rgb(25, 27, 31);"><br/></span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;"><strong><span style="color: rgb(25, 27, 31);font-size: 16px;">火险等级指数分为五级</span></strong></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;text-align: left;" data-pid="j5TvxoOC"><span style="color: rgb(25, 27, 31);font-size: 15px;"> 一级 气温偏低,相对湿度大,林区潮湿而不易燃烧。无火险,不易发生火灾。<o:p></o:p></span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;text-align: left;" data-pid="VtaX96k0"><span style="color: rgb(25, 27, 31);font-size: 15px;"> 二级 气温不高,相对湿度较大,林区较潮湿而难燃烧。属低级火险,由火种引起的火灾燃烧后蔓延也很慢。但仍需加强巡逻,以防万一。<o:p></o:p></span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;text-align: left;" data-pid="Om09bwnv"><span style="color: rgb(25, 27, 31);font-size: 15px;"> 三级 气温较高,湿度不大,林区较干燥,有利起火,可蔓延。属中级火险,易引起火灾且蔓延较快。需加强巡逻及了望,严禁在林区吸烟打猎等易引起火灾的行为。<o:p></o:p></span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;text-align: left;" data-pid="X7lMsCAW"><span style="color: rgb(25, 27, 31);font-size: 15px;"> 四级 气温高,湿度小,风力大,林区干燥,有利起火,容易蔓延。属高级火险,易引起火灾且蔓延较快。必须加强巡逻了望,作好灭火准备,严格控制一切火源。</span></p><p style="margin-right: 0cm;margin-left: 0cm;background: white;text-align: left;" data-pid="X7lMsCAW"><span style="color: rgb(25, 27, 31);font-size: 15px;"> 五级 气温高,湿度很小,风力小,林区干燥,极易起火,蔓延迅速。属特级火险,极易引起火灾且蔓延特快。必须采取非常防火措施,昼夜密切监视,严格控制一切火源。</span></p></section><p style="line-height: 1.8em;text-align: left;margin: 0px;text-indent: 2em;"><span style="color: rgb(35, 24, 21);font-size: 14px;letter-spacing: 1.5px;text-decoration: none;"></span></p><section data-autoskip="1"></section></section></section></section></section></section><p></p><p style="display: none;"><mp-style-type 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