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Method for improving coastal saline soil by using solidago canadensis

A saline soil and yellow flower technology is applied in the restoration of polluted soil, botanical equipment and methods, applications, etc., to achieve the effects of low cost and easy operation.

Inactive Publication Date: 2012-05-30
SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING
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  • Description
  • Claims
  • Application Information

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  • Method for improving coastal saline soil by using solidago canadensis
  • Method for improving coastal saline soil by using solidago canadensis

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Embodiment 1

[0012] 1. The location of the test site: Shanghai Bailonggang Sewage Treatment Plant is close to the sea wall of the East China Sea;

[0013] 2. Collection of goldenrod: From January to February, on the flat wasteland of Donghai Beach, use a sickle to stick to the surface to harvest the dead stems of goldenrod, with a height of 1.5-2.0m. Bundled with straw rope into a cylindrical shape with a thickness of about 40cm, transported to the test site for later use;

[0014] 3. Preparation of the test site: the area is 20m×20m, that is, 400m 2 , equally divided into two parts of 10m×20m, the dividing line is east-west direction. 100m to the north 2 It is the control area, that is, no isolation layer treatment, 100m to the south 2 It is the isolation layer test area;

[0015] 4. Treatment of the isolation layer of the test site: Use an excavator to dig at 400m 2 Excavate the earth within the scope, and the excavation depth is 2.0m (above the groundwater level). The soil is stac...

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Abstract

The invention relates to a method for improving coastal saline soil by using solidago canadensis, in particular to a saline soil improvement project for improving the saline soil by using invasive plants, belonging to the technical field of soil improvement. The method comprises the following steps of: marking out a land parcel to be improved; removing a surface soil layer above the ground water level in parallel to form a flat pit; uniformly covering the flat pit with an isolating material to form an isolating layer, and filling soil on the isolating layer for flattening, wherein the isolating material is solidago canadensis, and the isolating layer is made from 1.5-2 m of collected solidago canadensis or dry solidago canadensis branches with nearly equal length; binding the solidago canadensis or dry solidago canadensis branches into bundles with about 40 cm in thickness, spreading the bundles in the pit and compacting the pit; and backfilling the surface soil. The method has the advantage of changing the waste solidago canadensis litters into the valuable for improving coastal saline soil, not only can a great amount of solidago canadensis litters be consumed, but also saline soil can be improved. Through the massive application of the method provided by the invention, the wide spreading of solidago canadensis can be relieved and weakened. The method is simple and convenient to operate, has low cost and is applicable to large-scale popularization and application.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, specifically relates to a saline soil improvement project, and relates to a method for improving coastal saline soil by using dead branches of invasive plants as underground isolation materials. Background technique [0002] Solidago canadensis is native to European and American countries, and was introduced into my country as a flower plant in the 1970s. Because of its strong reproductive ability and destructive ability to native plants, it has been flooded in the Yangtze River Delta for decades. There is currently no proven method of extermination. A large number of goldenrod dead stems are produced in autumn and winter every year. Coastal saline soil is the main soil type of tidal flats in the east of my country, and the east coast is one of the most economically developed areas in China. It is distributed in large and medium-sized cities such as Shanghai, Tianjin, Yancheng, and Nin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00A01G1/00
Inventor 有祥亮夏檑沈烈英王洪
Owner SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING
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