Dredged sediment based plant adaptability matrix and ecological restoration method of bare slope

A technology for dredging sediment and matrix, which is applied in the field of environmental ecological restoration and waste resource utilization, can solve the problems of expensive solidification treatment and difficulty in popularization, reduce the dependence on clay resources and repair costs, and is not easy to be eroded by rainwater. outstanding effect

Inactive Publication Date: 2011-11-02
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Abstract
  • Description
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Problems solved by technology

However, curing treatment is expensive. In 2009, 1m 3 It takes 40 yuan to dredge the sediment, more than 1m dredged 3 cost, making this method difficult to promote in general areas

Method used

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Embodiment Construction

[0047] The present invention will be described in detail below in conjunction with specific embodiments. The described embodiments are helpful to the understanding and implementation of the present invention, and do not constitute a limitation to the present invention. The protection scope of the present invention is not limited by specific implementations, but is limited by the claims.

[0048] The plant-based substrate based on the dredged bottom mud of the present invention uses the dredged bottom mud as the aggregate of the substrate, and adds plant straw, plant ash, cement, slow-release fertilizer / organic fertilizer, water-retaining agent, etc., uniformly mixed at normal temperature, and can be applied Regreening and phytoremediation to prevent soil erosion on exposed and degraded slopes.

[0049] The slope ecological restoration construction project using the plant-based substrate of the present invention can be completed by various slope protection techniques, and the substr...

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Abstract

According to the invention, by using dredged sediment from water body such as eutrophicated rivers and lakes as the aggregate, plant straws, plant ash, ordinary portland cement, an organic fertilizer, a release fertilizer, a water-retaining agent and the like are added into the dredged sediment with uniformly stirring to form the bare slope plant adaptability matrix with certain adhesive performance. By employing the wet-type guniting technology for two-layer matrix guniting, the plant adaptability matrix is used for the plant restoration of bare mountain slope and can form a new plant cover layer in a short period. The dredged sediment is used as the matrix to control the loss of water and soil, thus minimizing the dependence on the clay resource and the restoration cost in slope restoration and solving the issue of dredged sediment treatment by the resource mode; and furthermore, the restoration method provided by the invention has high environmental, ecological and economic benefits.

Description

Technical field [0001] The invention belongs to the field of environmental ecological restoration and waste resource utilization, and specifically relates to a plant-based substrate based on dredging silt from eutrophic water bodies, and a method for constructing a plant substrate in the restoration of bare slopes. Background technique [0002] Due to a series of development and utilization activities such as mineral extraction, stone mining and road construction, some mountains and steep slopes have formed wounds, most of which exist or remain in the form of bare slopes. These remaining slopes not only affect the natural landscape, but more importantly, destroy the continuity of the surface ecosystem and destroy the habitat on which indigenous organisms depend. In addition, because bareness increases the chance of rock weathering and soil erosion, this will increase the load of pollutants and the risk of water and soil pollution in areas where the loss of non-point source pollut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C05F15/00E02D17/20A01G1/00
Inventor 范成新王兆德周麒麟
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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