城市调水工程对河流生态的影响研究
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摘要
为研究工程对河流生态水质指标的影响,研究基于夏季、冬季2次水质实测资料,基于矩阵范数思想,建立了水质进步度模型,结果表明:不同水质指标随时间均呈先降低后平稳变化的趋势,夏季调水前后各指标的浓度降低,11月与次年1月间的冬季调水对水质的影响并不明显,而夏季调水后水质明显改善,基本在Ⅱ～Ⅲ类水之间;通过计算矩阵范数可知,调水前后形成的状态转移矩阵范数为0.39,表明调水前后水质有所改善,但改善不明显,未发生水质等级变化,为调水工程的实施提供理论依据。
Ⅰn order to obtain the influence of water transfer project on the ecological water quality index of river, water quality index data in summer and winter was used and analyzed to study the different water quality indicators. Based on the idea of matrix norm, a water quality progress model was established to evaluate the change of water quality before and after water diversion. The result showed that: different water quality index showed a downward trend followed by a steady trend. The concentrations of various indicators decreased before and after water transferation in summer, and the effects on winter water diversion between November and January in January on water quality were not obvious. The matrix norm was 0.39 which was before and after water transferation. Ⅰt showed that water quality had been improved before and after water transferation, but the improvement was not obvious. Water quality level had not changed. This conclusion can provide a theoretical basis for the implementation of water transfer project.
Ⅰn order to obtain the influence of water transfer project on the ecological water quality index of river, water quality index data in summer and winter was used and analyzed to study the different water quality indicators. Based on the idea of matrix norm, a water quality progress model was established to evaluate the change of water quality before and after water diversion. The result showed that: different water quality index showed a downward trend followed by a steady trend. The concentrations of various indicators decreased before and after water transferation in summer, and the effects on winter water diversion between November and January in January on water quality were not obvious. The matrix norm was 0.39 which was before and after water transferation. Ⅰt showed that water quality had been improved before and after water transferation, but the improvement was not obvious. Water quality level had not changed. This conclusion can provide a theoretical basis for the implementation of water transfer project.
引文
[1]袁小平.基于水生态文明建设背景下的城市中小河流治理思考研究[J].建材与装饰,2019(7):281-282.
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[5]赵忠科.肥城市引汶调水工程建设及运行效果[J].山东水利,2018(2):30-31.
[6]李艳艳.最终严格对角占优矩阵的逆矩阵无穷范数的上界估计[J].贵州大学学报(自然科学版),2019,36(2):13-15;21.
[7]王亚强.Nekrasov矩阵逆的无穷范数估计式的改进[J].纺织高校基础科学学报,2019,32(1):73-76.
[2]张强.基于水生态文明建设的城市河流生态治理措施[J].水利规划与设计,2018(11):74-75;133.
[3]王助贫,周琳,闫丽娟,等.基于流域尺度的城市河流治理技术体系-以凉水河为例[J].中国水利,2018(7):8-11.
[4]李娟,成晔波,徐兴.无锡市城市调水改善水环境研究与思考[J].治淮,2017(7):11-12.
[5]赵忠科.肥城市引汶调水工程建设及运行效果[J].山东水利,2018(2):30-31.
[6]李艳艳.最终严格对角占优矩阵的逆矩阵无穷范数的上界估计[J].贵州大学学报(自然科学版),2019,36(2):13-15;21.
[7]王亚强.Nekrasov矩阵逆的无穷范数估计式的改进[J].纺织高校基础科学学报,2019,32(1):73-76.