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A platform for research: civil engineering, architecture and urbanism
Ecological restoration method for municipal eutrophicated river
The invention discloses an ecological restoration method for a municipal eutrophicated river. The method comprises the following steps: arranging a barring and controlling water level system at a barring and controlling water gate of the river; in the main stem of the river, piling cubic meters of earth obtained after desilting to form an along-river gentle slope and a river-center island, wherein a bank slope ratio is 1: 2.5 to 1: 5, and a shoal water zone and a deep and broad water zone are successively formed from a dam of the river to the center of the river; carrying out rock mound type and jack-like concrete block type bottom shape reconstruction on the slope surface of the along-river gentle slope; constructing embankment-zone aquatic plant zones at the river-center island and the along-river gentle slope having undergone bottom shape reconstruction and constructing a plant floating bed bio-zone in an along-river zone; and releasing filter-feeding and omnivore fish, shellfish and shrimps. With the restoration method provided by the invention, the water quality of the river is improved from class IV and V to class III or a higher class; biodiversity of a water area is increase by more than 2 times; the river has better capability in smooth regulation of water storage and flood discharge; and a water system has the further improved functions of underground water supplement, carbon immobilization, oxygen release, climate adjustment, water conservation, etc.
Ecological restoration method for municipal eutrophicated river
The invention discloses an ecological restoration method for a municipal eutrophicated river. The method comprises the following steps: arranging a barring and controlling water level system at a barring and controlling water gate of the river; in the main stem of the river, piling cubic meters of earth obtained after desilting to form an along-river gentle slope and a river-center island, wherein a bank slope ratio is 1: 2.5 to 1: 5, and a shoal water zone and a deep and broad water zone are successively formed from a dam of the river to the center of the river; carrying out rock mound type and jack-like concrete block type bottom shape reconstruction on the slope surface of the along-river gentle slope; constructing embankment-zone aquatic plant zones at the river-center island and the along-river gentle slope having undergone bottom shape reconstruction and constructing a plant floating bed bio-zone in an along-river zone; and releasing filter-feeding and omnivore fish, shellfish and shrimps. With the restoration method provided by the invention, the water quality of the river is improved from class IV and V to class III or a higher class; biodiversity of a water area is increase by more than 2 times; the river has better capability in smooth regulation of water storage and flood discharge; and a water system has the further improved functions of underground water supplement, carbon immobilization, oxygen release, climate adjustment, water conservation, etc.
Ecological restoration method for municipal eutrophicated river
ZHU HAO (author) / LIU XINGGUO (author) / CHENG GUOFENG (author) / GU ZHAOJUN (author)
2016-02-24
Patent
Electronic Resource
English
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