Tree planting method and tree planting structure in coastal saline and alkaline area

A technology for saline-alkali land and trees, which is applied in the field of tree planting methods and tree planting structures in coastal saline-alkali land, which can solve the problems of long period and high cost, and achieve the effects of reducing saline-alkali content, improving bearing capacity, and facilitating survival and growth

Active Publication Date: 2014-07-30
SHANDONG DONGSHENG GARDEN ENG CO LTD
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Problems solved by technology

[0004] A technical problem to be solved by the present invention is to provide a method for planting trees in coastal saline-alkali land, to solv

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  • Tree planting method and tree planting structure in coastal saline and alkaline area

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Embodiment Construction

[0029] refer to figure 1 Shown, the coastal saline-alkali land tree planting method of the embodiment of the present invention, comprises the following steps:

[0030] a. Build cofferdams: On saline-alkali land, first select the area where trees are to be planted, and then build cofferdams around the area where trees are to be planted according to the conventional method of building cofferdams.

[0031] b. Set up the raising layer: use the mud pump to extract silt from the river bottom outside the cofferdam, and pump the extracted silt to the surface of the saline-alkali raw soil 1 inside the cofferdam, and then fully dry and flatten it to form a raised layer Upper floors 2. The setting of the raising layer 2 raises the topography in the cofferdam, so that the saline-alkali original soil 1 is relatively reduced. Because the raising layer 2 has been fully dried, most of the saline and alkali contained in the silt is discharged with the leachate, so the raising layer 2 The sal...

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Abstract

The invention discloses a tree planting method and a tree planting structure in a coastal saline and alkaline area. The tree planting method comprises the steps of building a cofferdam, arranging a lifting layer, carrying out salt pressing and alkali discharging on the lifting layer, digging planting holes, paving waterproof geotechnical cloth, paving a broken stone water filter layer, paving a straw curtain water filter layer, backfilling planting soil and planting trees. According to the tree planting method disclosed by the invention, after the steps and measures are comprehensively adopted, the salt returning period of saline and alkali soil can be slowed down, good conditions are created for the surviving and the growth of the trees due to the soil fertility of the planting soil, and a greenery landscape can be easily formed after the trees are planted; since the terrain is lifted, saline and alkaline original soil is relatively reduced, alkali discharging pipes are not needed to be paved in specific construction, the period of salt discharging and alkali controlling is reduced, and the cost is reduced. The tree planting method and the tree planting structure, disclosed by the invention, are suitable for being popularized and applied in a greening process of the coastal saline and alkaline area.

Description

technical field [0001] The invention relates to the technical field of coastal saline-alkali land treatment, in particular to a tree planting method and a tree planting structure for coastal saline-alkali land. Background technique [0002] The coastal saline-alkali land has relatively poor soil due to high saline-alkali content. In the original landform, only a few saline-alkali-tolerant grasses grow, and most of them grow naturally. There are few artificially planted trees. The reason is that a good green landscape cannot be formed, the landscape structure is relatively simple, and the ornamental value is low. Moreover, the rivers in the coastal areas are often seriously silted, overgrown with weeds, seriously polluted, and the soil quality is poor, so it is difficult for ordinary ornamental trees to grow normally. [0003] At present, the commonly used methods to improve this situation mainly include terrace field improvement, dark pipe alkali drainage, blind ditch alkal...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G23/00
Inventor 王霞王晓慧李刚李雪薛春营刘光生刘英君韩鹏龙张泉利姜新刚
Owner SHANDONG DONGSHENG GARDEN ENG CO LTD
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