Shallow water level double salt-affected soil raw soil planting and greening method

A soil and water level technology, applied in forestry and horticulture, can solve the problems of short duration of greening landscape, secondary damage of good soil resources, poor drainage and salt discharge effect, etc., to overcome erosion, improve soil structure, and ensure durability Effect

Inactive Publication Date: 2008-10-15
CANGZHOU ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since most of these areas are located at the intersection of terrestrial ecosystems and aquatic ecosystems, the long-term shortage of fresh water resources has caused serious salinization, and the groundwater level of saline water is high and the amount of water is large. It also seriously restricts the landscaping work in this type of area.
In known technology, existing greening technology mainly concentrates on the local isolation of planting area, the method of community salt discharge and greening area replacement soil, and these technical measures are better in the area of ​​shallow groundwater table (being below 1.5 meters of groundwater table) area effect , but in saline soil areas with hig

Method used

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  • Shallow water level double salt-affected soil raw soil planting and greening method

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Experimental program
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Embodiment approach

[0035] Take a low-lying land close to the Bohai Sea area with an altitude of 1.3 meters, a saline-alkali land with a groundwater level of 0-0.6m and a large amount of water in the rainy season, and a saline-alkali land with a soil salt content of 6.2‰, where the arbor green plant-white wax is cultivated as an example. If the green area is 2,000 square meters, compare with the existing technique of replacing guest soil with 1,000 square meters. Adopt technical implementation scheme of the present invention as follows:

[0036] 1. Excavate the original soil layer: excavate the original soil layer (1) in the planned greening area to a depth of 150cm;

[0037] 2. Laying water-proof layer: Lay 0.2mm polyvinyl chloride film around and at the bottom to form a water-proof layer (7);

[0038] 3. Laying of salt water drainage pipes: according to the location and direction of the green area, lay PVC palm seepage pipes with a spacing of 5m, a diameter of 20cm, and a length of 600cm as th...

Embodiment 2

[0047] A 4,000-square-meter greening test project in another area near the Bohai Sea. The area is a low-lying land with an altitude of 1.7 meters. The groundwater level in the rainy season is 0.3m-0.6m and the water volume is large. The saline-alkali land with a soil salt content of 6.5‰ cultivates green plants ——Ligustrum lucidum, holly, wherein the new technology of the present invention is applied to 3000 square meters, compared with the existing technology of replacing foreign soil to 1000 square meters.

[0048] Adopt technical scheme of the present invention to implement according to the following steps:

[0049] 1. Excavate the original soil layer: excavate the original soil layer in the planned greening area to 100cm;

[0050] 2. Laying water-proof layer: 0.3mm polyvinyl chloride film is used to lay water-proof layer around and at the bottom;

[0051] 3. Laying of salt water drainage pipes: According to the location and direction of the green area, lay PVC palm seepag...

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Abstract

The invention relates to a technology for afforestation and planting in areas with shallow water level and heavily-salted soil and solves the problems of high cost for foreign soil replacement and short duration. The technical proposal is that: the process realizes the original soil planting by building an integral isolation zone in the greening area and controlling a microcirculation system inside the isolation zone and desalting with fresh water. The process comprises the following steps: A. building an isolation zone; B. desalting with fresh water until the salt content in soil is below 0.2%; and C. planting seedlings for afforestation. The technology solves the technical problems of high cost for foreign soil replacement and short duration of afforestation and greening in coastal areas with shallow water level and heavily-salted soil; and has the advantages of overcome serious erosion of underground salt water to soil mass, good desalting effect, reduced afforestation cost, improved soil structure, low requirements for raw materials for afforestation, applicability for various seedlings, easy maintenance and management and low cost.

Description

technical field [0001] The invention relates to a planting and greening method in the technical fields of forestry and gardening. Background technique [0002] With the continuous development of coastal cities, especially port cities near the sea, the technical requirements for environmental greening, beautification and optimization are getting higher and higher. However, since most of these areas are located at the intersection of terrestrial ecosystems and aquatic ecosystems, the long-term shortage of fresh water resources has caused serious salinization, and the groundwater level of saline water is high and the amount of water is large. It also seriously restricts the landscaping work in this type of area. In known technology, existing greening technology mainly concentrates on the local isolation of planting area, the method of community salt discharge and greening area replacement soil, and these technical measures are better in the area of ​​shallow groundwater table ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01B77/00B09C1/02A01C21/00E02B11/00
CPCY02A40/22Y02P60/40
Inventor 阎旭东赵松山孙文元徐玉鹏王秀玲赵忠祥孔德平林长青岳明强武婷
Owner CANGZHOU ACAD OF AGRI & FORESTRY SCI
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