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Method and device for evaluating longitudinal connectivity of water system in watershed scale

An evaluation method and connectivity technology, applied in the field of river system connectivity, can solve problems such as the lack of longitudinal connectivity evaluation of river and lake systems, and achieve the scientific and reasonable effect of the overall longitudinal connectivity index of the river system.

Pending Publication Date: 2022-03-25
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0004] However, the existing evaluation methods often only evaluate the vertical connectivity of a single river, and do not take into account the interaction process between the main and tributaries, the upstream and downstream of the river and lake water system, the overall water system and the external rivers from the mechanism level. The evaluation of the overall vertical connectivity of river and lake water systems from the perspective is still lacking

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  • Method and device for evaluating longitudinal connectivity of water system in watershed scale
  • Method and device for evaluating longitudinal connectivity of water system in watershed scale
  • Method and device for evaluating longitudinal connectivity of water system in watershed scale

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Embodiment Construction

[0059] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0060] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodime...

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Abstract

The invention provides a drainage basin scale water system longitudinal connectivity evaluation method and device. According to the method provided by the embodiment of the invention, the drainage basin characteristic parameters of the target water system are obtained, and then the overall longitudinal connectivity index of the target water system is determined according to the drainage basin characteristic parameters of the target water system and the preset overall longitudinal connectivity index algorithm; and determining an evaluation grade of the target water system according to the overall longitudinal connectivity index and an evaluation threshold standard of a preset water system longitudinal connectivity grade, thereby comprehensively considering drainage basin characteristic parameters of the water system, and reflecting the connectivity degree between main and branch flows in the water system, upstream and downstream as well as between the whole water system and an external river from a mechanical property level. Therefore, the integral longitudinal connectivity index of the water system calculated by the method is more scientific and reasonable.

Description

technical field [0001] The present application relates to the technical field of river system connectivity, in particular to a method and device for assessing the longitudinal connectivity of water systems at the basin scale. Background technique [0002] The connectivity of river systems has the functions of hydrological regulation and storage, ensuring the smooth migration of organisms, and improving the water and soil environment. Its connectivity mechanism is mainly manifested in the continuity of vertical, horizontal, vertical and time dimensions. For the research on river connectivity evaluation methods, in the past 20 years, many scholars at home and abroad have proposed a variety of quantitative calculation and evaluation methods in their respective disciplines. [0003] Generally speaking, several typical evaluation methods include: graph theory method, hydrology-hydraulic method, landscape method, comprehensive index method and hydrological model method. Among the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/06393G06Q50/26
Inventor 曾庆慧侯佳明胡鹏王建华阿膺兰杨钦杨泽凡刘欢张璞
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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