城市化对南明河水系的洪水影响

发布时间：2018-05-15 03:30

本文选题：城市化 + 洪水　；参考：《水电能源科学》2017年03期

【摘要】：针对贵阳市城市化引起的城市防洪严峻的问题,基于1980~2015年贵阳市水文站的观测资料、南明河水系分布图和贵阳市溶洞、暗河实测资料,利用调洪演算法定量计算了贵阳市城市化前后的年最大流量与汇流历时,研究了城市化对南明河水系的洪水影响。结果表明,经城市化后汇流历时缩减10.07%~23.31%,相应的年最大流量增加15.86%~24.67%,典型洪水年年最大流量增幅与历时减幅明显高于非洪水年,暗河与溶洞在贵阳市城市化的进程中对南明河水系的洪水起到了削峰滞洪的作用,所以合理利用暗河与溶洞,削弱城市化对南明河水系的洪水影响迫在眉睫。
[Abstract]:In view of the serious problem of urban flood control caused by the urbanization of Guiyang City, based on the observation data of Guiyang hydrologic station from 1980 to 2015, the distribution map of Nanming River system and the measured data of karst cave and hidden river in Guiyang City, The annual maximum discharge and confluence duration of Guiyang before and after urbanization were calculated quantitatively by using flood diversion algorithm, and the effects of urbanization on the flood of Nanming River system were studied. The results show that after urbanization, the confluence duration is reduced by 10.07 and 23.31, and the corresponding annual maximum flow increases by 15.86 to 24.67. The annual maximum flow rate and duration decrease of typical floods are obviously higher than those of non-flood years. In the process of urbanization in Guiyang City, the dark river and the karst cave play a role in cutting the peak and holding the flood in the Nanming River system, so it is urgent to make rational use of the dark river and the karst cave and weaken the influence of urbanization on the flood of the Nanming River system.
【作者单位】：华北水利水电大学水利学院;贵州省水利科学研究院;
【基金】：水利部公益项目(201301039);水利部公益性行业科研专项经费项目(201401041) 贵州省水利科技支撑项目(KT201503) 华北水利水电大学高层次人才引进计划资助项目(2013038)
【分类号】：TV122;TV87

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