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Method for renovating desolated rocky beach through alien earth

A technology of barren rocky beach and foreign soil, which is applied in the field of remediation of barren rocky beach by using foreign soil, so as to reduce the amount of water leakage and fertilizer leakage and reduce the amount of engineering

Active Publication Date: 2014-04-02
陕西地建土地工程技术研究院有限责任公司
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Problems solved by technology

Therefore, the development and remediation technology of difficult-to-use land has become a problem that we urgently need to solve

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  • Method for renovating desolated rocky beach through alien earth

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Embodiment Construction

[0029] The invention provides a method for using foreign soil to remediate barren rock beaches, comprising the following steps:

[0030] 1] Use the method of shoveling high and padding low to level the barren beach 1; you can choose the barren beach along the flow direction of the old river. For the convenience of construction and mechanized operation, you can choose the barren beach with a width of 30-60m. In order to facilitate flood discharge, avoid In the event of floods, flood drainage channels with a width of 3-5m can be set up on the barren rocky beach;

[0031] 2] Select sand or silt and gravel with a particle size of 1-10cm. In order to reduce the large pores between the gravels and reduce the amount of water and fertilizer leakage after the soil is spread, the sand or silt and gravels are mixed according to the volume ratio of 1:1-1. : 2 mixed evenly as the mixed layer 2, the mixed layer is covered on the barren beach, and then the mixed layer is compacted, the thick...

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Abstract

The invention discloses a method for renovating a desolated rocky beach through alien earth. The method comprises the following steps of, firstly, leveling the desolated rocky beach through a method of ridge shoveling and sinkage filling; secondly, selecting and uniformly mixing sandy soil or sludge and gravel with the diameter of 1-10 cm at a volume ratio of 1:2 to obtain a mixed layer and covering the mixed layer on the desolated rocky beach layer, compacting the mixed layer to a thickness of 10-20 cm; thirdly, covering the mixed layer with three earth layers, which are applied as below: covering and compacting a first immature earth layer, covering but not compacting a second immature earth layer on the first immature earth layer and covering a mellow earth layer or a semi-mellow earth layer rich in certain nutrients at the top of the other layers, wherein the thickness of the earth layers is 30-100 cm. By compacting the upper portion of the gravel layer and the bottom portion of the alien earth layer, the method for renovating the desolated rocky beach through the alien earth reduces fertilizer and water losses after the earth is laid, protects the ecological environment of the desolated rocky beach and increases the cultivated land resources.

Description

technical field [0001] The invention relates to the field of land improvement, in particular to a method for using foreign soil to improve rocky beaches. Background technique [0002] my country has a large population, and the relative scarcity of cultivated land resources directly affects my country's food security. In order to ensure my country's food security, on the one hand, it is required to protect the quantity and quality of the existing cultivated land, and on the other hand, it is necessary to discover reserve resources of cultivated land as a guarantee for future development. Therefore, the development and remediation technology of difficult-to-use land has become a problem that we urgently need to solve. Old river waste rock beaches, as a difficult-to-use land resource, are similar to bare rock and gravel land. Most of them are scour-type gravel beaches. There is no water all year round, and a large area of ​​scattered and messy pebbles has accumulated. The co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00
Inventor 韩霁昌
Owner 陕西地建土地工程技术研究院有限责任公司
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