River bank ecological restoration device and method suitable for mountain river characteristics

Abstract

The invention provides a river bank ecological restoration device and method suitable for mountain river characteristics. The device comprises ladder stone cages and a backfilling soil layer or ecological bags, wherein the ladder stone cages are arranged on the river bank slope, and the backfilling soil layer or the ecological bags are arranged in a gap between the ladder stone cages and a river bank. Grass seeds are spray-sown to form a grass seed layer after slurry is poured into the ladder stone cages; a rubble base layer is arranged at the bottoms of the ladder stone cages; riprap bankets are laid at the outer sides of the bottoms of the ladder stone cages; herbaceous plants are sown on the ecological bags; and herbaceous plants, shrubs and arbors are planted on the river bank at the upper portions of the ladder stone cages. According to the river bank ecological restoration device and method suitable for the mountain river characteristics, the cost is low, the operation is easy and convenient, and actions of stabilizing the river bank and providing a porous habitat for microorganisms and aquatic organisms are achieved; and the riparian zone environment suitable for the plants to grow is built to restore phytocenosis so as to intercept and absorb nonpoint source pollution loads coming from peripheral housing estates and farms, and therefore an action of protecting river water quality is achieved.

Description

technical field [0001] The invention relates to the field of ecological engineering, in particular to a river bank ecological restoration device and method suitable for the characteristics of rivers in mountainous areas. Background technique [0002] The riparian zone refers to the river bed between the high and low water levels of the river and the area above the high water level until the influence of the river water completely disappears, including the non-permanently submerged river bed and the floodplain area above it. The riparian zone is an interlaced zone of land and water, which has obvious edge effects, plays a significant role in ecosystems and landscapes, and is characterized by ecological fragility, biodiversity, periodic changes, and frequent human activities. The riparian zone of mountainous rivers is an ecological transition zone between rivers and highland vegetation. Due to the temporal and spatial unevenness of rainfall in the basin, the range and impact o...

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Problems solved by technology

[0005] The above-mentioned technical methods have their own characteristics and are all targeted. However, in view of the characteristics of concentrated rainfall in mountainous areas, high scouring intensity of rivers, serious soil erosion, difficult restoration of ri

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