Before the outbreak of mountain torrents, mud-rock flow what are omens? _ News

Before the outbreak of mountain torrents, mud-rock flows, there are various signs, such as:

(1) in the vicinity of the mountain slope instability factors susceptible to landslides and debris flows.

(2) in the rain when the maximum is reached, precipitation in the upper reaches of the fierce, sediment disasters significant xigou abnormal flooding.

(3) the mountain landslides occurred or when the channel bank erosion, trees rustling in the mountains disrupted and abnormal sound of the mountain.

(4) the upper block, dramatic decrease in water level in the xigou.

(5) due to the collapse in the upper reaches, xigou water is very turbid.

(6) when the water suddenly increased, in xigou is obviously different than locomotives, the sound of wind and rain, lightning, explosion, probably debris flows carried boulders of impact.

(7) landslides in the upper reaches, abnormal smell occurs.

(8) with trees cracking sound.

(9) in humans has yet to feel abnormal phenomenon, animal had abnormal actions, such as cat's loud screaming.

Above the mountain torrents, mud-rock flow occurred in the precursor phenomena are closely related to the intensity of precipitation. Therefore, short-time rainfall prediction in advance is extremely important.

Responsible editor: Sun Ailin SN146

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山洪、泥石流暴发前有哪些预兆？ _新闻资讯

　　山洪、泥石流爆发前，有各种预兆，如：

　　（1）在山体附近坡面有不稳定因素的情况下易发生山崩和泥石流。

　　（2）在降雨达到最大时，上游的降水激烈，泥沙灾害显著，溪沟出现异常洪水。

　　（3）山地发生山崩或沟岸侵蚀时，山上树木发出沙沙的扰乱声，山体出现异常的山鸣。

　　（4）上游河道发生堵塞，溪沟内水位急剧减少。

　　（5）由于上游发生崩塌，溪沟的流水非常浑浊。

　　（6）在流水突然增大时，溪沟内发出明显不同于机车、风雨、雷电、爆破的声音，可能是泥石流携带的巨石撞击产生。

　　（7）上游发生山崩，有异常臭味出现。

　　（8）有树木的断裂声。

　　（9）在人还没有感觉出有异常现象时，动物已有异常的行动，例如，猫的大声嘶叫等。

　　以上这些山洪、泥石流发生的前兆现象，大多是与降水强度有密切的关系。因此，提前做好短时间内的降雨预报工作是极为重要的。

责任编辑：孙爱林 SN146

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