陕西省山洪灾害特征及防治对策
Features on torrential floods and its precaution in Shaanxi province
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摘要: 界定了山洪灾害的概念,分析了陕西省山洪灾害的形成条件和影响因素.在时域上,具有多期性和同期群发性,与泥石流、滑坡等灾害形成灾害链,每年7～9月是山洪灾害的高发季节,4～6月偶有发生;在地域上,受暴雨中心和流域地形控制,具有相对集中性和成片成带性.划分了山洪灾害易发区,分区提出了相应的防洪减灾措施.Abstract: The author presents the definition of the torrential floods,analyses on forming condition and influential factors of torrential floods hazards for Shaanxi province.From the temporal aspect of view,the torrential flood is of multiple terms and multiple occurring in the same term.It coincides with mud flows and land slides.Most torrential floods occur from July to September in every year and a few from April to June in every year.From the spatial aspect of view,it is characterized by concentration,controlling by rain storm centers and topography.Finally,the author presents the high-potential occurring zones of the to rrential floods and its precautions.
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Keywords:
- torrential floods hazard /
- development features /
- zoning features /
- precaution
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