Healthy river ecosystem construction method based on water ecological function partition

Abstract

The invention relates to a healthy river ecosystem construction method based on a water ecological function partition, and the method comprises the steps: determining all levels of rivers in a target drainage basin and drainage basins corresponding to all levels of rivers through an ArcGIS hydrological module based on the DEM data of the target drainage basin, and taking the (i + 1) th level of river drainage basin as a partition basic unit of the ith level of water ecological function partition; acquiring natural geographical driving factor data and partition representation index data of the (i + 1) th-level river basin; performing clustering analysis on the natural geographical driving factor data and the partition representation index data of each (i + 1) th-level river basin in the target basin to obtain partitions on the ith-level water ecological function partition; obtaining drainage basin ecological health index data of each subarea on the ith-level water ecological function subarea, and evaluating the health condition of each subarea on the ith-level water ecological function subarea; ecological restoration measures of different levels are formulated based on the health condition of each subarea and the water ecological function subarea level corresponding to the subarea, and a healthy river ecological system is constructed.

Description

technical field [0001] The invention relates to a method for constructing a healthy river ecosystem based on water ecological function zoning. It is suitable for the field of integrated watershed management and ecological restoration technology. Background technique [0002] At present, the restoration of damaged river ecosystems and the sustainable management of rivers have become the focus of international attention. River ecosystem restoration has been carried out in many regions in China, but due to the lack of accurate understanding of river ecological environment problems and the systematic, hierarchical and in-depth consideration of its influencing factors and river restoration goals at different scales, the existing river governance and management Activities often follow traditional planning and governance concepts and technical methods, and most of them still stay at the level of water pollution control and "engineered" river governance to meet the functional needs...

AI Technical Summary

Problems solved by technology

Many areas in China have carried out river ecosystem restoration, but due to the lack of accurate understanding of river ecological environment problems and the in-depth consideration of the systemic, hierarchical and different-scale river restoration goals of its influencing factors, the existing river governance and management Activities often follow the traditional concepts and technical methods of planning and governance, and most of them still stay at the level of water pollution control and "engineering" river governance to meet the functional requirements of river flood control and landscape, and lack the distinction and understanding of different scales. The effect of comprehensive improvement of water environment and ecological restoration is not significant

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