Lakeside zone ecological improvement technology capable of eliminating waves and promoting sediment deposition

Abstract

The invention provides a lakeside zone ecological improvement technology capable of eliminating waves and promoting sediment deposition. Based on the synthesis of existing related technologies for lakeside zone ecological restoration, in terms of the characteristics of a lakeside zone, a bottom material is improved, the flow rate of a water flow is reduced, and the basic environment conditions of growing and breeding large-scale aquatic higher plants are enlarged; main components used for ecological improvement comprise an underwater sand blocking bank arranged on the lakeside zone and a bamboo raft floating bed arranged at the head region of the lakeside zone; the underwater sand blocking bank is mainly used for blocking a bed load sediment flowing in a lakebed to reduce the flow rate of the bed load sediment and realize quicker settling of the sediment; the bamboo raft floating bed is mainly used for playing roles in eliminating waves, promoting siltation and protecting the sand blocking bank. By designing the combination of the underwater sand blocking bank and the bamboo raft floating bed of the underwater sank blocking bank, the flow rate of the water flow can be reduced, the sediment deposition is promoted, the aquatic higher plants can favorably root for survival, a physical environment which is beneficial for sediment deposition and algae capture and enables nutrient elements such as nitrogen and phosphorus to be accumulated and purified is established, and thus a lakeside zone ecological system is better stabilized to realize the purpose of water quality improvement.

Description

technical field [0001] The invention relates to a lakeside ecological restoration technology, in particular to a lakeshore ecological improvement technology for eliminating waves and promoting sediment deposition. Background technique [0002] The main purpose of the lakeside wetland is to intercept various scattered pollutions from the land, but human disturbance has caused relatively few sediments and higher aquatic plants in the lakeside zone. The lakeside zone often lacks a soft substrate where plants can take root, and wind and waves cause lakeshore erosion, making it difficult for soft sediment to stay and accumulate, and it is difficult for higher plants to take root; planktonic algae and sediment resuspension caused by wind and waves make underwater light energy insufficient, and plants cannot Carry out photosynthesis, unable to grow and reproduce normally. Therefore, measures must be taken to promote sediment deposition and create a good environment for the recover...

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Problems solved by technology

[0005] However, so far, no technical solution with practical operability and remarkable repair effect has been proposed.

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