摘要
渭河水患已严重影响到渭河下游两岸人民生命财产安全。通过对历史洪峰流量与洪水水位的对比分析、文献资料分析和实际调查等方法,得出渭河水患的主要成因是:渭河上游黄土高原地区毁林开荒,造成水土流失,加大了泥沙量;下游两岸防洪堤坝的修建,限制了河水流动范围,影响行洪泻洪,造成泥沙沉积。黄河三门峡工程的修建,加剧了泥沙沉积,抬高了河床高度,使渭河成为地上悬河,遇到洪水极易毁堤,形成水灾。治理渭河首先要理清思路,在方法和措施上要有突破和创新,在治渭方略上要以疏为主,疏堵结合,关键是要降低河床高度。要综合治理,工程措施与生物措施并举,科学调水调沙,退田还河。惟有这样,方可确保渭河安澜。
Flood disaster has seriously influenced people's safety of lives and property in the lower reaches of Weihe River.The purpose of this article is to analyze the causes of the disaster and its prevention.The main causes are found through contrasting and analyzing flood amount and level in history,such as deforestation for farming in the upper reaches and building of embankments in the lower reaches which affects the stability of river conditions and impede the smooth passage of floodwater.Due to Sanmenxia Res...
出处
《水土保持通报》
CSCD
北大核心
2009年第5期197-200,共4页
Bulletin of Soil and Water Conservation
关键词
渭河
水患
成因
治理对策
Weihe River
flood disaster
influence factor
countermeasure of flood prevention
