论文部分内容阅读
1981年8月,陕西省汉中、宝鸡两地市发生了历史上少见的特大洪水,造成了严重灾害。为了总结经验教训,分析洪水灾害成因,陕西省水电局组织洪水调查组,对重点灾区进行了现场勘察和调查。调查结果表明,洪水灾害的重要特征是:洪水、雨涝、滑坡和泥石流三灾齐发。造成灾害的根本原因是太平洋上空暖湿空气强,台风次数增加,太阳黑子活动加剧,气候异常,形成了汉中、宝鸡地区强度大、范围广、持续时间长的降雨,以致江河暴发,泛滥成灾。造成洪灾的因素是多方面的,有暴雨洪水的直接原因,有自然地理和历史因素,也有工作中的问题——城镇规划欠周,工农商交通等布局欠妥,堤防工程建设和管理不善,森林植被遭破坏等。调查报告根据具体情况作出了具体分析。现摘登报告的第三部分供读者参考。
August 1981, Hanzhong, Baoji, two cities in the history of the rare floods have occurred, causing serious disaster. In order to summarize the experiences and lessons and analyze the causes of flood disasters, Shaanxi Provincial Bureau of Hydropower Bureau flood investigation team conducted site survey and investigation on the key disaster-stricken areas. The findings show that floods are characterized by floods, floods, landslides and mudslides. The root cause of the disaster was the strong warm air and humid air over the Pacific Ocean, the increase of the typhoon frequency, the intensified sunspot activities and the abnormal climate. This led to the formation of heavy rainfalls and long-lasting rainfalls in the areas of Hanzhong and Baoji, causing outbreaks and floods . There are many factors that cause floods. There are direct causes of storm floods, natural geography and historical factors as well as problems in work - inadequate urban planning, poor distribution of workers and peasants’ commercial transport, poor embankment construction and management, Forest vegetation destroyed. The investigation report made a concrete analysis according to the specific circumstances. The third part of the report is now available for readers’ reference.