【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。更多还原

【Abstract】 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.更多还原