碧流河水库水质综合调查设计与实践

Design and Practice of Comprehensive Survey of Water Quality in Biliuhe Reservoir

随着水库运行时间的延长,水质管理遇到了诸如入库污染物的累积效应,水质要素的多维多相性,水源连通影响等新问题,直接影响供水安全。为此,碧流河水库实施了水库水质综合调查研究,在水质样本采集空间上,补充强化了水库入流河口段和库区特殊断面的样本采集;在采样时间上,除了常规的非冰冻期样本采集,增加了12月至次年3月的冰冻期样本采集与分析;在水质分析样本类型上,除了采集水体样本外,增加了悬浮物和沉积物样本的采样和分析。此外,在大洪水汇入、特低水位、外流域输水初期的特殊时机,也及时收集了不可多得的数据。为水库水质管理提供了重要技术支撑,增强了水库水质管理的科学性和自信心。

As the running time of reservoirs extends as time goes on, some new problems as cumulative effects of pollutants inflow, multi- dimensional heterogeneity of water quality elements and connectivity of water sources have emerged in water quality management, which directly affects the safety of water supply. Therefore, a comprehensive survey of water quality is conducted in the Biliuhe Reservoir. Samples in the reservoir inflow estuary areas and in the special sections are emphatically collected to complete the collection in space. Samples during the frozen period of December to March are also collected and analyzed. In addition, on some special occasions, especially when flood drains into the reservoir, the water level is low, and at the early time of water diversion from outside basins, the rare data are also collected in time. On the whole, the comprehensive survey of water quality designed in this paper provides important technical support for water quality management, which also enhances the scientificity and confidence in water quality management of reservoirs.