Process for constructing river channel ecological system of hard revetment by aid of cofferdams and floating beds
A technology of river ecosystems and cofferdams, applied in river regulation, monitoring of invasive species, sustainable biological treatment, etc., can solve problems such as difficult realization of water ecosystems, inability to survive and destroy emergent and submerged plants, etc. Achieve the effect of being conducive to large-scale promotion, rapid and effective water ecosystem, and low cost
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[0021] (1) Carry out hydrological investigation, measure the water flow velocity v=5m / s, the average water depth is 1.2m, and the tidal drop h=10cm, and according to the measured data, build 3 parallel rivers along the vertical direction of the water flow on the shore of the hard revetment. The cofferdams are fixed with wooden piles, an ecological restoration area is formed between the cofferdams, a light-transmitting floating bed is set on the water surface between the cofferdams, the floating bed is fixed on the cofferdam by ropes, and a bacterial film hanging curtain is set on the offshore side of the floating bed; The cofferdam spacing is 8m, and the cofferdam height is 1.1m;
[0022] (2) Pioneer species of submerged plants such as hornwort and chrysoprase are planted in the ecological restoration area for preliminary restoration; hornwort and chrysoplasty are species with strong pollution resistance, which are conducive to the formation of beneficial bacterial films for th...
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