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

Abstract

The invention provides a cutting planting technology for tamarix chinensis in the dredger fill original soil area. The cutting 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 cutting planting technology adopts the method that localized amendment is conducted on the dredger fill artificially, that is, the local soil salinity is enabled to be reduced to below 2% through the permeable salt-leaching by the sand fertilizer column so that a local microenvironment suitable for root taking can be created for the cutting, and the ventilation, temperature increasing, water saving and the balance of water, air, fertilizer and the temperature can be benefited. After the growing requirement of the salt-tolerant plant like the tamarix chinensis is met, cutting is conducted. The tamarix chinensis are utilized to improve the soil after survival, reduce the soil salinity, attract the insects, birds and other animals and enable the ecological environment to be changed greatly. The cutting planting technology for the tramarix 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, and Nangang Industrial Zone have already reclamated about 200km2 of land, and it is ...

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