Method for building ecological littoral zone in buffer area

Abstract

The invention discloses a method for building an ecological littoral zone in a buffer area. The method comprises building of gabions, a low pond, multiple ponds and a retention canal. The method comprises the following specific steps: (1) a gabion area is built, wherein the gabions are built between a normal water level of a river and a level of a flood occurring every two years, and emergent aquatic plants are planted in gaps between the gabions; (2) the low pond is built, wherein a low area which is 20cm lower than the gabion area and 20cm lower than foundations of the multiple ponds is built between the level of the flood occurring every two years and the level of a flood occurring every twenty years; (3) a multi-pond system is built, wherein two rows of pond systems are built in the low pond area, substrate improvement is conducted, submerged plants are closely planted in the ponds, and the emergent aquatic plants are planted on the foundations and the circumferences of the ponds; (4) the retention canal is built, wherein the retention canal is built along the outside of the level of the flood occurring every twenty years. The method effectively solves the ecological problems that a surface source of a gentle slope area of the river is severely polluted, landscapes are poor, the biodiversity is reduced and water and soil loss occurs, and offers a feasible and efficient ecological restoration measure for recovery and reconstruction of a hydro-fluctuation belt.

Description

technical field

[0001] The invention belongs to the technical field of ecological restoration engineering, and in particular relates to an optimal construction mode of an ecological shore zone in a buffer area, which is particularly suitable for restoration and reconstruction of a degraded coastal zone ecosystem. This patent comprehensively utilizes physical and biological methods to reduce the velocity of surface runoff flowing through the shore zone, reduce pollutants and restore biodiversity to a certain extent, providing technical support for the ecological restoration of the degraded shore zone. Background technique

[0002] The riparian ecosystem is the link between the two types of terrestrial and aquatic ecosystems. It continuously inputs organic matter synthesized by higher and lower terrestrial plants, weathered rocks, soil products, and materials transformed in terrestrial ecosystems into rivers, becoming rivers. An important source of nutrients for ecosystems. F...

Examples

Embodiment Construction

[0030]Overview of Funiuxi:

[0031] Funiu Creek is located in Dadukou District, Chongqing City, with a total length of 7.2km, a drainage area of ​​16.0km2, a slope of 16.78‰, and an average flow rate of 0.245m for many years. 3 / s. The basin is composed of non-uniform planar water bodies (Honglingjin Reservoir, Baobaogou Reservoir, Huangjuebao Reservoir, Sun Bay Reservoir) and linear water bodies (streams, rivers) with different widths. Due to the impact of domestic sewage and industrial wastewater discharge along the coast, the impact on water quality is relatively serious. In 2013, the functional category of Funiuxi waters was canceled in Dadukou District.

[0032] Condition before recovery:

[0033] This area is located in Community 1 of Funiuxi Citizen Village. It is a trapezoid with rounded corners. The short side is 15m long, the long side is 45m long, and the hypotenuse is 30m long. The area is about 1000m2 2 . The average slope of the river bank is 15°, and the si...

technical field

[0001] The invention belongs to the technical field of ecological restoration engineering, and in particular relates to an optimal construction mode of an ecological shore zone in a buffer area, which is particularly suitable for restoration and reconstruction of a degraded coastal zone ecosystem. This patent comprehensively utilizes physical and biological methods to reduce the velocity of surface runoff flowing through the shore zone, reduce pollutants and restore biodiversity to a certain extent, providing technical support for the ecological restoration of the degraded shore zone. Background technique

[0002] The riparian ecosystem is the link between the two types of terrestrial and aquatic ecosystems. It continuously inputs organic matter synthesized by higher and lower terrestrial plants, weathered rocks, soil products, and materials transformed in terrestrial ecosystems into rivers, becoming rivers. An important source of nutrients for ecosystems. F...

Examples

Embodiment Construction

[0030]Overview of Funiuxi:

[0031] Funiu Creek is located in Dadukou District, Chongqing City, with a total length of 7.2km, a drainage area of ​​16.0km2, a slope of 16.78‰, and an average flow rate of 0.245m for many years. 3 / s. The basin is composed of non-uniform planar water bodies (Honglingjin Reservoir, Baobaogou Reservoir, Huangjuebao Reservoir, Sun Bay Reservoir) and linear water bodies (streams, rivers) with different widths. Due to the impact of domestic sewage and industrial wastewater discharge along the coast, the impact on water quality is relatively serious. In 2013, the functional category of Funiuxi waters was canceled in Dadukou District.

[0032] Condition before recovery:

[0033] This area is located in Community 1 of Funiuxi Citizen Village. It is a trapezoid with rounded corners. The short side is 15m long, the long side is 45m long, and the hypotenuse is 30m long. The area is about 1000m2 2 . The average slope of the river bank is 15°, and the si...