Ecological Restoration Technology and Practical Exploration of Typical Small River Bays in Urban Inland Rivers
This paper took a typical small river bay in a certain urban area of Shanghai as the research object.Based on a thorough investigation and analysis of the water level drop,shoreline and substrate conditions,water quality,and other conditions of typical river bays,the ecological restoration technology practice of river bays is carried out.The results showed that after the restoration of the river bend,the water quality in the river bend stabilized and approached the water quality at the center line of the river.The coupling technology system of"active filtration zone+biological drift zone"carried out in this experiment has a good removal effect on conventional pollutants in the water body at the river bend,with CODCr removal rates ranging from 32.01％to 55.58％,TP removal rates ranging from 29.25％to 56.00％,and TN removal rates ranging from 28.22％to 49.62％,which can effectively reduce and stabilize pollutants in the water body of the river bays.This study provides a new approach and method for exploring the practice of ecological management and restoration techniques for river channels in confined spaces.It can provide technical support for the restoration and improvement of urban river environment,and also provide useful reference for the river environment management of other plain river network cities.
urban inland riversriver baysecological restorationengineering testactive filtration zonebiological streamerriver bay sedimentriver bay water quality
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