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Halogenic soil planting technique

A saline soil and salinization technology, applied in the field of greening, can solve problems such as physical and chemical properties of harsh soils

Inactive Publication Date: 2007-06-20
上海市金山区园林管理署 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the harsh soil physical and chemical properties of coastal saline soil, mainly composed of high content of water-soluble salts, is an insurmountable obstacle for tree planting and greening

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] Test of Greening of Newly Reclaimed Saline Soil in Shanghai Petrochemical Area

[0104] The Shanghai Petrochemical Plant covers an area of ​​approximately 11 square kilometers along the Hangzhou Bay. Before the reclamation, it was an estuary coastal sedimentary beach, with a simple landform: high in the north and low in the south, with a gentle slope, slightly inclined to Hangzhou Bay. On the beach, the ports, bangs, and canals that are connected to the sea cross vertically and horizontally, and there is also an intermittent shell embankment (known locally as "sand hills") that is roughly parallel to the coastline. The top of the embankment is slightly higher than the beach surface. There are many salt drying fields and brine wells on the beaches north of Shagang. The beach is 3 to 5 meters high (the zero point of Wusongkou). The groundwater level is 0.5 to 0.7 meters below the natural ground, the highest is 0.3 meters, and the lowest is 1.5 meters. Groundwater is connected...

Embodiment 2

[0158] Engineering Demonstration of Land Improvement and Greening in Nanhui Forest Park

[0159] Nanhui Forest Park is located on the coast of Nanhui, Shanghai. Most of the land is coastal saline soil that was reclaimed in 1994. The salt content of the soil surface is as high as 12.1g / Kg. After digging fish ponds and breeding plants from the stubby grass community to the reed community, the soil rapidly transforms from coastal saline soil to coastal saline soil: the average water-soluble salt content of the 60-70cm soil layer is 2.2g / Kg, and the soil pH is ≥8.4. The soil organic matter content is about 1.13%.

[0160] The inventors used the research results of the Shanghai petrochemical area for reference, and conducted a seaside saline soil greening experiment in Nanhui Forest Park.

[0161] 1. Dig the lake and pile the "mountain", separate irrigation and drainage

[0162] In order to drain the salt and to optimize the landscape, the method of digging a lake and piled "mountain" ...

Embodiment 3

[0177] Screening Test of Greening Plants in Coastal Saline Soil

[0178] In order to find and determine the salt-tolerant plants suitable for the greening of saline soil in the subtropical region, the present invention has carried out the screening test of the coastal saline soil greening plants on many plants.

[0179] (1) Test materials and methods

[0180] 1. Material: 139 kinds of green plants (see Table 9)

[0181] Table 9

[0182] Serial number

Variety

Latin

Serial number

Variety

Latin

1

Salted Tamarix

Tamarix Kazelinii Bunge.b

36

Palm

Trachycarpus fortunei (Hook.f.) H. Wendl.

2

Setaria tamarisk

Tamarix hispida.

37

Albizia

Albizzia julibrissin Durazz.(A.mollis

Boir., Acacia iulibrissin Wilid.)

3

Long spike Tamarix

Tamarix elongata.

38

Haitong

Pittosporum tobira(Thunb.) Alt.

4

Tamarix

Tamarix xamosissima Ledeb.

39

Paper...

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Abstract

A method for covering salinized soil with greenery includes such steps as correctly measuring the content of salt in the soil and its pH value, choosing the proper plants from 139 plants, and planting them is said salinized soil.

Description

Technical field [0001] The present invention relates to greening technology, specifically to coastal saline soil greening technology, and more specifically to a method for determining salt-tolerant plants suitable for planting in saline soil. Background technique [0002] Our country has a very long coastline, along with a lot of coastal saline soil. For example, Shanghai has a coastline of approximately 470 kilometers from Wusongkou to the mainland coast of Hangzhou Bay and the three islands of Chongming, Changxing and Hengsha. Along the coastline, it is in wide and narrow strips, with a total area of ​​about 630 square kilometers of coastal saline soil, which accounts for more than 15% of the city’s soil resources. Moreover, along with the siltation and reclamation of beaches, this Some soil resources are still expanding. Shanghai is a land with a "inch of land", and the land available for greening is extremely limited. It is imperative to make full use of coastal saline soil t...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G7/00
CPCY02A40/10
Inventor 魏凤巢夏瑞妹沈哲东黄晓萍戚五妹周立钱军朱小毛
Owner 上海市金山区园林管理署
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