Ecological comprehensive treatment system of northern mountain river channel and construction method thereof

Abstract

The invention discloses an ecological comprehensive treatment system of a northern mountain river channel. The system comprises three sub ecological systems of an ecological permeable dike built on the upstream of a main stream and a branch stream of a mountain river, a reservoir pond arranged at the middle and downstream area of the mountain river and a wet land communicated with the reservoir pond, and adopts an ecological treatment mode of closure-storage-preservation. The construction method comprises the steps of: a) building of the ecological permeable dike; b) setting of a triangular pyramidal wood pile stone cage; c) building of the reservoir pond; d) planting of plants of the reservoir pond; e) building of a wet land system; and f) recovery of a river bank band. The system and the construction method can effectively intercept the mountain debris flow and the river non-point source pollution, adjust the river runoff, improve the hydrologic conditions of the mountain river in non-flood season, decrease the dry season of the mountain river, and facilitate to recover the ecological system of the mountain river. Meanwhile, traditional depressions and empty ponds in the mountain river can be used in construction, so that the engineering building cost is reduced, and the self-cleaning capacity of river water is improved.

Description

technical field [0001] The present invention relates to a comprehensive ecological management system for rivers in northern mountainous areas and its construction method, more specifically, it relates to a system where ecological permeable dams are set up at tributaries and intersections in the upper reaches of rivers in northern mountainous areas, and reservoir ponds and wetlands are set up in the middle and lower reaches. Mountainous river channel ecological comprehensive management system and its construction method. Background technique [0002] The hillsides on both sides of the river in the northern mountainous area have rocky soil structures. Due to man-made damage and heavy rain or continuous rainfall, the water and soil loss in the mountainous area is serious. A large amount of sediment and stones are washed down the mountain and flow into the river, causing serious harm to the ecosystem of the mountainous river; Moreover, due to the steep slope of the rivers in the...

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Problems solved by technology

Generally speaking, single river ponds and wetland technologies have poor anti-interference ability, unstable effluent quality, low sustainability, and are greatly affected by factors such as seasons.

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