Large-scale forestation method for shrub species for especially-poor saline and alkaline land

A kind of extremely poor and shrub technology, which is applied in the field of large-scale afforestation of shrub species in saline-alkali extremely poor land, can solve the problems of high management and maintenance costs, inability to scale afforestation production, and ecological impact, so as to reduce the cost of afforestation and greening and increase the survival rate of afforestation Effect

Inactive Publication Date: 2015-12-23
JIANGSU ACAD OF FORESTRY
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Problems solved by technology

[0027] The cost of afforestation per square meter in the existing technology is between 120 yuan and 200 yuan, which cannot be used for large-scale afforestation production
[0028] 2. Ecological impact
[0031] Due to the existing engineering technology, after t

Method used

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not as a limitation to the present invention.

[0050] A method for large-scale afforestation of shrub species in saline-alkali-poor land, comprising the following steps:

[0051] 1) Drainage system construction: in the coastal areas of Jiangsu, where the salt content of the 40cm soil layer is less than 0.5% and the pH value is less than 8.9, the drainage system inside and outside the forest is connected, and the groundwater level is controlled below 0.6 meters;

[0052] 2) Afforestation species: select one of shrub willow, amorpha, medlar, and tetraploid black locust, and the shrub willow is one of Suliu 52-2, Suliu 1050 and Suliu 2345;

[0053] 3) Soil improvement: Start soil improvement one and a half years in advance, apply cow dung with a fresh weight of mor...

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Abstract

The invention discloses a large-scale forestation method for shrub species for especially-poor saline and alkaline land. The method comprises the steps of constructing a drainage system, carrying out forestation species selecting, carrying out soil amendment, carrying out land preparation bedding, carrying out mulching film covering, carrying out forestation and carrying out management. Compared with the prior art, the method has the advantages that no sandstone salt separating layer exists, a forest tree layer and soil interact, the depth of growth of roots can gradually increase, megaphanerophyte can gradually grow on forest land, and the survival rate of forestation is greatly increased; the cost of forestation greening of strongly-saline soil is remarkably reduced, and the forestation cost is not higher than 20 RMB per square meter; and the conventional agricultural measures are adopted, forest tree root growth layers can gradually promote the amendment and salt reduction of subsoil, forest trees and environment can form a healthy ecological system after the subsoil is subjected to natural salt reduction, irrigation is not required, and the management is hardly needed at the later stage.

Description

technical field [0001] The invention relates to the technical field of afforestation, in particular to a method for large-scale afforestation of shrub species in saline-alkali-poor lands. Background technique [0002] (1) Site characteristics and afforestation difficulties in the saline-alkaline extreme poverty along the coast of Jiangsu [0003] The coastal areas of Jiangsu are typical Yulong tidal flats, and the sites available for forestry applications are generally areas where new land reclamation and inadequate irrigation and water conservancy facilities are available. The cultivated layer of these sites is shallow, and generally there is no cultivated layer, or the cultivated layer is within 5cm. The soil structure is poor, the soil is fine and silty, the particles are small, and there is no aggregate structure; the soil is compacted and the air permeability is poor; the soil capillary is well developed, the soil water evaporates quickly, and the surface seepage of sa...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G1/00A01G23/00A01B79/02
CPCA01B79/02A01G17/005A01G23/00Y02A40/22Y02P60/40
Inventor 王红玲施士争韩杰峰隋德宗
Owner JIANGSU ACAD OF FORESTRY
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