Method for constructing artificial ecological island in river

Abstract

The invention discloses a method for constructing an artificial ecological island in a river. The method comprises the following steps: piling in a river, forming a fence by using a grid-shaped net along the piles, and filling gravels in the fence to form a gravel area; accumulating canal mud on the side face on the outer side of the fence to form a mud area; setting a pipeline system which runs through the island in the ecological island, wherein the pipeline system comprises a water inlet pipe, a water distribution pipe and a water outlet pipe; a water inlet of the water inlet pipe is formed below a normal water level of one side face of the ecological island along the river direction, the water inlet pipe is inserted into the gravel area and is connected with the water distribution pipe, a water outlet pipe is arranged on the water distribution pipe, a water outlet of the water outlet pipe is lower than the water inlet, and holes are formed in the water distribution pipe and the water outlet pipe positioned in the gravel area at intervals. The constructed ecological island provides growth and rest occasions for various animals and plants, effective water body exchange is performed between the gravel area in the ecological island and the outside, and the ecological island has the water purification function and is an artificial ecological island which is low in investment, zero in energy consumption, long-acting, easy and convenient in management, good in ecological effect and high in purification capacity.

Description

technical field [0001] The invention relates to a construction method of an artificial ecological island in a river course. Background technique [0002] With the hardening construction of rivers in our country and the deterioration of river water quality and ecological degradation caused by excessive pollution loads, the close integration of water conservancy projects and ecology has become the development trend of river management in the future. Aquatic animals and plants provide conditions suitable for their growth, increase the biodiversity of the river channel, and strengthen the self-purification capacity. At present, the ecological island for plant growth and animal habitat is mainly established by soil accumulation. Compared with facilities that provide growth conditions for plants such as plant floating beds, the construction of ecological islands does not require a large number of plastic frames that may become solid waste. After completion, it can provide growth a...

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Problems solved by technology

[0003] However, the existing ecological islands have the following deficiencies: the ecological island occupies the river channel space with limited water capacity, but only the surface layer of the ecological island has the function of purifying water and providing habitats for animals and plants, while the interior of the ecological island is firmly protected. It is firmly closed, although it occupies the space of the river, it lacks functions

[0005] At present, in the construction of the ecological island, no consideration is given to enhancing the exchange of water bodies inside and outside the island. Therefore, the water purification function inside the ecological island has not been effectively brought into play.

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