长江口影响水资源承载力关键指标与临界条件

徐志; 马静; 王浩; 赵建世; 胡雅杰; 杨贵羽

doi:10.16511/j.cnki.qhdxxb.2018.25.056

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清华大学学报（自然科学版） ›› 2019, Vol. 59 ›› Issue (5) : 364-372. DOI: 10.16511/j.cnki.qhdxxb.2018.25.056

水利水电工程

长江口影响水资源承载力关键指标与临界条件

徐志^1,2, 马静², 王浩^1,2, 赵建世¹, 胡雅杰², 杨贵羽²

作者信息 +

Key indicator and critical condition for the water resource carrying capacity in the Yangtze River Estuary

XU Zhi^1,2, MA Jing², WANG Hao^1,2, ZHAO Jianshi¹, HU Yajie², YANG Guiyu²

Author information +

文章历史 +

摘要

中国幅员辽阔，区域气象水文条件差异极大，社会经济发展不均衡，水资源问题极其复杂。因此，需根据不同水文分区，明确区域的水资源问题，识别区域水资源承载力的制约要素，提出物理机制明确且能反映水文机理的影响承载力关键指标及其对应的临界条件。该文以长江口为例，从问题产生的机理出发，识别出入海径流为河口水资源承载力的关键指标和水文要素，提出定值方法，结合动力学模型模拟长江口盐度场，确定长江口抵御咸潮入侵的入海径流的临界条件，以此作为水资源承载力的刚性约束，为不同水文分区展开类似工作提供借鉴。

Abstract

Water resource issues are complicated in China due to the vast territory, great differences in regional meteorological and hydrological conditions, and the uneven socio-economic development. Therefore, water resource carrying capacity issues and constraints need to be identified for the various hydrological zones. Such studies will need an indicator with a clear physical meaning and its corresponding critical condition that reflects the hydrological mechanism to ensure reliable and acceptable water resource carrying capacities around the country. This paper uses the Yangtze River Estuary as an example for a mechanistic analysis of regional water issues to identify the constraints on the water resource carrying capacity. The runoff to the sea is used as a controllable hydrological indicator with the hydrodynamic model using a salinity limit to determine the critical point where the runoff to the sea can resist sea water intrusion for the Estuary. This method can also be applied to other hydrological regions.

导出引用

徐志, 马静, 王浩, 赵建世, 胡雅杰, 杨贵羽. 长江口影响水资源承载力关键指标与临界条件[J]. 清华大学学报（自然科学版）. 2019, 59(5): 364-372 https://doi.org/10.16511/j.cnki.qhdxxb.2018.25.056

XU Zhi, MA Jing, WANG Hao, ZHAO Jianshi, HU Yajie, YANG Guiyu. Key indicator and critical condition for the water resource carrying capacity in the Yangtze River Estuary[J]. Journal of Tsinghua University(Science and Technology). 2019, 59(5): 364-372 https://doi.org/10.16511/j.cnki.qhdxxb.2018.25.056

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基金

国家重大研发计划资助项目（2016YFC0503502）；国家自然科学基金资助项目（41861124006）；院士科技咨询项目（215-ZD-16-02-03）

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收稿日期	出版日期
2018-03-23	2019-05-15
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