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Seeding planting technology for tamarix chinensis in dredger fill original soil area

A technology of dredging filling and original soil area, which is applied in the field of landscaping and greening construction, and can solve the problems of unsustainability, serious damage to the ecological environment, and high construction costs

Inactive Publication Date: 2015-06-24
天津港海湾园林绿化有限公司
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AI Technical Summary

Problems solved by technology

This method has high construction costs, cannot meet the needs of greening construction in the new area, and seriously damages the ecological environment. "Green one side, destroy one side" is not sustainable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The test site is located in the dredging and filling area south of Weier Road, Lingang Economic Zone, Tianjin. The transplanting test of tamarisk willow is carried out. This area is a dredging and filling land area, and the filling time is short (about 2 years), the foundation is soft, and large machinery If you can't go up, it is difficult to implement mechanized land preparation and soil improvement construction. At present, the surface 30cm is hard crust, 35cm-50cm is putty paste, and below 50cm is thin mud. The water content gradually increases from top to bottom, and it is difficult to discharge.

[0010] In July 2013, Tamarix sowing experiment was carried out in the above-mentioned area during the seed maturity stage of Tamarix, and the seeds were collected two weeks before sowing. At the same time, we will carry out the land preparation and furrowing in the dredging and filling area, and the work of spreading river sand and irrigation. The seeds collected from t...

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Abstract

The invention provides a seeding planting technology for tamarix chinensis in the dredger fill original soil area. The seeding planting technology aims to solve the greening difficult problem in the sea mud dredger fill heavy saline and alkaline area, changes the original high-invest and low-benefit greening mode, takes the ecological engineering science and the natural vegetation evolutionary changes as the guidance, and utilizes the principle of 'suitable land planted with suitable trees (plants), and suitable land with suitable method' and the salt-tolerance performance of the tamarix chinensis. The seeding planting technology adopts the method that localized amendment is conducted on the dredger fill artificially, refers to the soil environmental conditions that the tamarix chinensis grow naturally under a wild state in a vacuum preloading area (according to the vacuum preloading technology, the surface fill sand shall be more than 30cm-50cm), that is, river sand is filled on the surface of the dredger fill so that a good microclimate condition is created for the seed germination of the tamarix chinensis, the tamarix chinensis can adapt to the large environment of the area when growing to be able to stand on the land, and the surrounding ecological environment can be improved. The seeding planting technology for the tamarix chinensis in the dredger fill original soil area is low in cost, fast in effect, sustainable and capable of providing strong technical support for the development and construction and the environmental improvement of the coastal areas.

Description

technical field [0001] The invention belongs to the field of landscaping greening construction, in particular to a method for greening the original soil of dredging land reclamation in coastal dredging land reclamation areas. Background technique [0002] The land area of ​​Tianjin Binhai New Area is 2270 square kilometers, among which the coastal saline soil with a salt content greater than 6g / kg accounts for 43.9% of the total land area. And according to incomplete statistics, the current area of ​​dredged landfill in the new area is more than 300 square kilometers. Land reclamation is an effective way to expand ports, industrial development space and urban construction land. In recent years, coastal areas have been rapidly expanded to shallow seas and tidal flats, and land reclamation is unstoppable. At present, Tianjin Port and Beitang Tourism and Leisure Resort , Lingang Economic Zone, Nangang Industrial Zone, etc. have been reclaimed for 200km 2 Around, planning to r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
CPCA01B79/02A01G22/00
Inventor 张莉莉张建唐李媛徐悦
Owner 天津港海湾园林绿化有限公司
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