论文部分内容阅读
2000年7月,涡河、贾鲁河流域相继发生了自1957年以来的最大的洪水,洪水给沿河两岸群众造成了重大的经济损失。据统计:这次洪水仅扶沟县(贾鲁河流域)直接经济损失达6000余万元,通许县、柘城县(涡河流域)分别损失5000余万元和9000余万元。洪涝灾害所造成的水利工程损失(仅计开封、商丘、周口三市):涡河898.17万元,贾鲁河707.9万元。1 洪涝灾害形成的原因1.1 降雨量大2000年刚进入汛期,豫东地区连续出现强降雨过程,致使涡河、贾鲁河以
In July 2000, the largest floods in the river valleys and the Jialu River basin occurred successively since 1957, causing heavy economic losses to the people on both sides of the river. According to the statistics, the direct economic loss of Fugou County (Jilu River Basin) reached more than 60 million yuan. Tongxu County and Yuncheng County (Zhehe River Basin) respectively lost more than 50 million yuan and 90 million yuan. Water conservancy project losses caused by floods (only Kaifeng, Shangqiu, Zhoukou three cities): Eddy 898.17 million, Jialu 7.097 million. 1 Causes of flood disasters 1.1 Large rainfall In 2000 just entering the flood season, the continuous occurrence of heavy rainfall in eastern Henan, resulting in Eddy, Jialu to