太湖生态修复问题剖析及相应修复技术探究

Research on Ecological Restoration Problems and Corresponding Repair Technology in Taihu Lake

在分析太湖生态修复面临的主要问题基础上,提出以恢复草境水生植被为主的太湖生态修复措施,以生态修复与饮用水源水质深度净化与清淤防洪疏浚工程结合、恢复芦苇湿地与消浪工程建设相结合等生态修复的思路及设想;利用太湖水浅、底质为硬质黄土等条件,采用股埂、垅沟相间疏浚开挖方式,开挖出的淤泥、部分黄土就地堆成股埂成为种植芦苇等水生植物的湿地基座,其在具体施工上简单易行、投入上相对较低、环境影响较小,从根本上解决淤泥堆放占地、处置难等问题。

Based on the analysis of the main problems about restoration of the ecosystem in Taihu Lake,several measures should be imposed as to restore the ecosystem,such as restoring aquatic vegetation in the grass,combining the ecological restoration with the deep purification of drinking water source with the dredging and dredging project,and combining the restoration of reed wetland with the construction of wave elimination project.Taking advantage of the shallow and hard loess of Taihu Lake,the dredging and excavation method of bunds are adopted.The excavated silt and part of the loess are piled up into bunds on the spot to become the wetland base for planting reed and other deep-water plants.These measures are simple and easy to operate,less investment and less environment impact.The problems of land occupation and disposal of sludge stacking will be solved fundamentally.