Method of landscaping planting of coastal dredger fill saline and alkaline land

Abstract

The invention discloses a method of landscaping planting of a coastal dredger fill saline and alkaline land. The method comprises the following steps of 1, carrying out fine soil preparation on the coastal dredger fill saline and alkaline land, ditching, ridging, discharging salt and discharging alkali; 2, utilizing a cave-shaped lining membrane basement tree planting technology on a ridge; 3, managing, wherein the cave-shaped lining membrane basement tree planting technology comprises the steps of (1) digging a forest planting hole according to the size of seedlings; (2) laying plastic films which can be provided with round cracks on the bottom and the lateral surfaces in the hole; (3) arranging an isolating course of 30 cm in the forest planting hole; (4) planting seedlings by adopting a planting method of burying for three times, stamping twice and lifting once; (5) adopting matrix soil suitable for seedling growth as planting soil, and applying 4 kg of biological efficient organic fertilizer to every square meter of matrix soil; (6) covering the earth surface with a layer of film with holes so as to storage water and preserve soil moisture, and ridging and compacting on the film; (7) ridging at the periphery of the forest planting hole to form a round sill. By adopting the method, the survival rate of landscaping planting of the coastal dredger fill saline and alkaline land is effectively improved, and is up to more than 90%. The method has the advantages of simplicity in operation, low cost and easiness in popularization.

Description

technical field [0001] The invention relates to a soil improvement project for coastal dredging and filling saline-alkali land, in particular to a method for greening and planting coastal dredging and filling saline-alkali land. Background technique [0002] Land salinization is a worldwide problem faced by human beings. Vegetation restoration and development and utilization of saline-alkali land is a hotspot of great concern to relevant countries and institutions in the world. It is estimated that the saline soil in the world is reduced by 1 million to 1.5 million hm per year. 2 speed growth. Saline soil is widely distributed in more than 100 countries in the world, with an area of ​​about 955 million hm2, accounting for 10% of the global land area. It is mainly distributed in the arid regions of all continents, concentrated in Eurasia, Africa and western America. Saline soil is widely distributed in my country, from tropical to cold temperate zone, coastal to inland...

AI Technical Summary

Problems solved by technology

Aiming at overcoming the disadvantages of difficult survival or low survival rate of planting species in saline-alkali landscaping of coastal dredging and filling soil, the combination of furrow and ridge planting mode and hole-like film-lined matrix seedling planting technology can effectively improve coastal dredging land for a long time. Filling saline-alkali land and its landscaping

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