长潭水库水体富营养化状况分析及防治对策

Prevention Countermeasures for Reservoir Eutrophication

根据近年水质监测结果,着重研究长潭水库的富营养化状况,引入氮磷比的概念,对其富营养化程度及变化趋势进行分析预测,认为水库库区表层水水质指标浓度中氮磷比呈现逐渐增大的趋势;并结合长潭水库富营养化的发生机理,提出应建立一套完整有效的库区水质保护体系,以防止水质污染和水体富营养化的发生.预测有针对性的防治对策.

in the precondition of ensuring the existing train vehicle traffic safety,taking into account the A river area of main channel can not long time occupied channel construction,through field survey with favorable geographical conditions of A River and B River upstream and downstream are interlinked,the water box A channel existing culvert two temporary plugging immediately after the launch through water box culvert lengthening construction. Focusing on the construction process of foundation pit excavation,such as,formwork,pouring,backfill construction steps were introduced,and the difficulties in the construction,risk analysis,put forward to deal with and the countermeasures.