基于生态保护及后续生态修复的新型环保疏浚关键问题研究

目的]研究基于生态保护及后续生态修复的新型环保疏浚关键问题。方法]针对目前环保疏浚重点集中在底泥污染物去除,对疏浚后水生态修复重建工作关注不够的问题,分析筛选影响水生生态系统生存、生长控制因子,并提出生态疏浚方式。结果]在分析疏浚目的、效果及影响等基础上,从生态保护及利于后续生态修复的角度出发,筛选出水深和基质两类因子为底泥环保疏浚的优控因子,提出可结合底泥清淤重塑水下地形的新型疏浚方式。结论]该研究为后续生态修复构建所需合适的水深及基底等条件提供解决方案。

Study on Key Problems of a New Environmental Dredging Based on Ecological Protection and Subsequent Ecological Restoration

Objective] The research aimed to study key problems of a new environmental dredging based on ecological protection and subsequent ecological restoration.Method] People paid more attention to the effect of environmental sediments dredging removal,without considering the coming rehabilitation.Factor affecting aquatic ecosystem existence and growth was screened,and ecological dredging manner was put forward.Result] Based on dredging objective,effect and influence,started from ecological protection and subsequent ecological restoration,we screened that water depth and substrate were excellent control factors of the environmental sediment dredging.New dredging manner of combining sediment dredging to reshape underwater terrain was put forward.Conclusion] The research provided solution for water depth and sediment demands of the subsequent ecological restoration.