Method for controlling lake eutrophication and paludification by using aquatic plant configuration

Abstract

The invention discloses a method for controlling lake eutrophication and paludification by using aquatic plant configuration. The method comprises the following steps of: investigating the contamination degree and the species and coverage of aquatic plants of a water body; selecting the proportion and planting positions of the aquatic plants by combining water quality index changes and plant species differences over the years; and harvesting the aquatic plants to reduce biogenic sediment so as to slow down the paludification process. By the method, the economic cost for lake control can be effectively reduced, and local materials are used, so that the method is easy, simple and feasible and has strong operability and wide applicability; and the implementation of the technology does not influence the original ecological functions of a lake ecological system, thus the method has great significance for maintaining the ecological health of lakes for a long time.

Description

technical field [0001] The invention belongs to the field of environmental ecology, and specifically relates to a method for adjusting and controlling eutrophication water bodies by using several kinds of aquatic plants configuration, which can economically and efficiently slow down the process of eutrophication and swamping of lakes. technical background [0002] With the rapid development of the economy, the degree of eutrophication of lakes in my country is becoming increasingly serious. In recent years, due to the eutrophication of lakes, drinking water has been limited and the normal life of human beings has been affected. Examples abound. Lake eutrophication has become a serious threat It is one of the most important social and environmental issues in my country's ecological environment. According to the literature, 75% of the more than 200 lakes investigated in my country are eutrophic, and blue-green algae outbreaks frequently occur in Taihu Lake, Chaohu Lake, and Dia...

AI Technical Summary

Problems solved by technology

The patent with the publication number CN101805062A combines sampling steel slag and macroalgae to treat eutrophication and turn scrap steel slag into treasure. It is a low-energy, low-cost method, but steel slag may cause secondary pollution to water bodies. potentially harmful

The invention patent with the publication number CN102126792A involves a variety of vegetables. It is equipped with a floating planting bed, and uses the characteristics of the plant's own metabolism to remove nitrogen and phosphorus in the water body. The invention uses biological purification methods to effectively improve eutrophic water bodies. Compared with the treatment of eutrophic water bodies, the effect is more obvious, the investment cost is low, and it is convenient for promotion and large-scale planting, but it can only reduce the nutrient content and cannot slow down the swamp.

The invention with the publication number CN101962227A discloses a method for treating eutrophication of water bodies. The steps include: investigating the community structure of aquatic organisms in the water body, and based on the investigation results, finding out the missing or broken links in the food chain; For carnivorous fish, use drugs or artificial fishing methods to remove small miscellaneous fish and herbivorous fish in the water body, adjust the fish community structure in the water body; plant submerged plants, floating leaf plants and Emergent plants; filter-feeding fish, filter-feeding shellfish, detritus-feeding benthic animals and herbivorous fish are stocked in water bodies, but the adjustment method is relatively complicated, and it is greatly affected by wind and waves, and its scale effect is not significant. See proof that it is difficult to do the above in large bodies of water

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