荆南三口流域水系连通性变化对水资源开发利用的影响
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TV213.4

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国家自然科学基金(41571100);六盘师范学院科技创新团队项目(LPSSYKJTD201701)


Influence of water system connectivity variation on water resources development and utilization in the Three Outlets Basin of Southern Jingjiang River
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    摘要:

    为了探讨水系连通性对荆南三口流域水资源开发利用的影响,采用Mann-Kendall趋势检验法分析1965—2017年长江荆南三口河系水位演变情势和径流量变化特征,重点剖析了水系连通性对三口地区水资源量、水文干旱、不同河系水资源开发利用的影响。结果表明:荆南三口流域特征水位变化趋势显著,年平均水位降低,不利于水资源开发;荆南三口流域多年平均径流量变化幅度大,水资源开发利用难度增大;荆南三口流域水文干旱次数呈增长趋势,干旱历时增长,水资源短缺问题严峻;荆南三口流域年径流量地区分配不均衡,年际相差大,对流域内水资源开发利用极为不利。

    Abstract:

    In order to explore the influence of the water system connectivity on the development and utilization of water resources in the Three Outlets Basin of Southern Jingjiang River, the evolution of water level and the variation characteristics of runoff in the years of 1965—2017 were analyzed by the method of Mann-Kendall trend test. This paper focuses on the analysis of the influence of the water system connectivity on the water resources quantity, hydrological drought and the development and utilization of different river systems in the Three Outlets Basin of Southern Jingjiang River. The results show that: The characteristic water levels of the Three Outlets Basin of Southern Jingjiang River changed significantly. and the average annual water level has decreased, which is not conducive to the development of water resources. The variation range of average annual runoff of the Three Outlets Basin of Southern Jingjiang River is large, and the development and utilization of water resources are more difficult. The number of hydrological droughts in the Three Outlets Basin of Southern Jingjiang River system showed an increasing trend, and the drought duration is increasing. The problem of water shortage is severe. The regional distribution of annual runoff in the Three Outlets Basin of Southern Jingjiang River is not balanced and the annual variation is large, which is very disadvantageous to the development and utilization of water resources in the basin.

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代稳,王金凤,陕振沛,等.荆南三口流域水系连通性变化对水资源开发利用的影响[J].水资源保护,2021,37(6):114-120.(DAI Wen, WANG Jinfeng, SHAN Zhenpei, et al. Influence of water system connectivity variation on water resources development and utilization in the Three Outlets Basin of Southern Jingjiang River[J]. Water Resources Protection,2021,37(6):114-120.(in Chinese))

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  • 收稿日期:2020-04-09
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  • 在线发布日期: 2021-11-24
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