A method for grading and evaluating hydrogeomorphology of rivers in mountainous areas

Abstract

The present invention provides a method for grading and evaluating hydrological landforms of rivers in mountainous areas, comprising the steps of: first, monitoring or collecting relevant information of rivers in mountainous areas, and comprehensively utilizing remote sensing, GIS and GPS technologies to conduct preliminary analysis of river information, including the location of the river , landform characteristics and structure; second, according to the analytical results of step one, divide the monitoring units of mountainous rivers; third, monitor and record the hydrogeomorphic factors of each monitoring unit, wherein the hydrogeomorphic factors include riverbed, river bank , floodplain, and external stress factors, among which, the riverbed factor includes geometry, substrate, hydrology, vegetation, and river continuity under human influence; the river bank factor includes the reconstruction of the river bank, and the reconstruction of the river bank can be divided into natural and wide berms. The beam narrowness of the project and the beam narrowness of the narrow berm project; fourth, according to the monitoring results of step 3, carry out hydrogeomorphological classification for each monitoring unit.

Description

technical field [0001] The invention relates to the technical field of river environment, in particular to a method for grading and evaluating hydrological landforms of rivers in mountainous areas. Background technique [0002] The hydrogeomorphological characteristics of rivers are the hydrological and geomorphic characteristics formed under the joint action of hydrological and geomorphic factors, including the flow, frequency, duration, sediment, channel form, and habitat of floods and low waters. Hydrogeomorphic characteristics are the main cause of the formation of water ecosystem characteristics, and are important attributes of rivers. In recent years, with the rapid development of social economy, human beings have been using and transforming rivers more and more intensively, resulting in a series of attributes of rivers including hydrological and geomorphic characteristics, which have undergone significant changes, and to a certain extent, have caused the degradation o...

AI Technical Summary

Problems solved by technology

Existing research cannot give scientific evaluation and classification, especially for river sections that need to be protected or treated, what protection measures should be taken to protect and improve river ecological functions

In addition, the existing evaluation methods are single and technically insufficient, which cannot provide scientific basis and decision-making support for the decision-making management of ecological restoration of mountainous rivers.

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