黄河花园口河段水沙及环境现状分析

Analysis on the actuality of environment and sand & water at the Huayuankou reachs of the Yellow River

黄河是我国西北和华北地区的重要水源,花园口河段除作为郑州市和新乡市主要的供水水源外,还担负着水沙调控作用,直接影响下游及河口的水环境质量.我们收集了花园口水文站2006年8月份的实测水位、流量及含沙与输沙资料,同时,采集水样进行室内化验,通过资料的对比分析,发现该河段来水量和输沙率有很好的一致性,均有减少趋势,水质良好.此外,本文还详细分析了造成来水量和输沙率减小及河段水质状况变化的原因,提出黄河水资源保护的建设性意见.

The Yellow River is important water resource in northwest and north China, the Huayuankou reachs takes on the sand and water regulation and control, and also being the important water supply source of the Xinxiang and Zhengzhou. It affects the water environmental quality in the lower reachs and estuary. The datas of measured water level, flow and sediment concentration ＆ transportation during August of 2006 in the Huayuankou hydrologic station are collected. Moreover, water samples are gathered to test in the laboratory. Through the comparison and analysis the datas, the results show that the runoff quantity and sediment transport rate have the perfect consistency, appear the reducing tendency, and the water quality at the Huayuankou reachs is better. Moreover, the paper detailedly analyses the causes which lead to the above -metioned phenomena, and puts forward the constructive suggestions to protect the resource of the Yellow River.