Ecological restoration method of lake water in plain river network area

Abstract

The present application provides an ecological restoration method for lake water in a plain river network area, including: dividing the water space into a shoal area, a transition area and a deep pool area according to a preset underwater elevation; The key factors affecting water quality in the area were identified; and according to the results of the discrimination, the methods of directly planting dwarf weeds or first turbidity treatment and then planting dwarf weeds were used to treat each partition separately; Type bitter grass for long-term care. This method not only treats the lakes in different regions, but also adopts the above-mentioned method of planting dwarf weeds for each partition, as well as the long-term management and protection of the dwarf weeds in the later stage, so that the water ecological restoration of the lakes can be targeted. The restoration work is mainly based on the natural restoration of aquatic plants, and the maintenance cost is low in the later period, which is worthy of promotion.

Description

technical field [0001] The present application relates to the field of water environment treatment, in particular to a method for ecological restoration of lake water in a plain river network area. Background technique [0002] The rivers and ports in the plain water network area are criss-crossed, and the lakes are contiguous, with unique ecological service functions such as pollutant interception, water purification, and eco-tourism. [0003] In recent years, due to the influence of regional urbanization, high-density aquaculture in water bodies, and increased pollution discharge, the area of ​​lakes and wetlands has decreased sharply, the ecological degradation of water bodies has been serious, biodiversity has been reduced, water environment capacity has been reduced, and self-purification capacity has been reduced, restoring healthy lakes. Wetland ecosystems are a daunting task. In China, many simple ecological restorations of river networks and lakes have been done, m...

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a method for ecological restoration of lake sloshing water in plain river network areas, so that it can solve the current overall governance of lake sloshing water, which leads to blindness in the process of governance, many artificial measures, and less natural recovery. Technical problems with high maintenance costs in the later period

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