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Coastal saline-alkali soil improvement method, improved coastal saline-alkali soil structure and application

A technology for improving structure and saline-alkali land, applied in the direction of soil preparation methods, applications, botanical equipment and methods, etc., can solve the problems of difficult management and maintenance, and achieve the effects of preventing salt return, accelerating desalination rate, and accelerating the leaching process

Inactive Publication Date: 2018-12-14
MEILIGUOTU BEIJING ECOLOGICAL ENVIRONMENT ENG TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the constraints of the shortage of fresh water resources in the coastal area, there are problems of difficult management and maintenance in the later stage

Method used

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  • Coastal saline-alkali soil improvement method, improved coastal saline-alkali soil structure and application
  • Coastal saline-alkali soil improvement method, improved coastal saline-alkali soil structure and application

Examples

Experimental program
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Effect test

Embodiment 1

[0101] This embodiment provides a method for improving coastal saline-alkali land, comprising the following steps:

[0102] (a) Ditch and bury underground pipes in the saline-alkali soil layer to be desalinated. The buried depth of the hidden pipes is 0.8m, the distance between the hidden pipes is 20m, and they are inclined towards the water outlet. One end (end) of the water collection pipe is connected to the water collection pipe, and the slope of the water collection pipe is 1.0‰, forming a drainage layer of the hidden pipe;

[0103] The end of the water collecting pipe is connected with the water collecting well, and the water collecting well is connected with the reservoir through the pipeline, and the water pump is installed on the pipeline;

[0104] (b) Excavate saline-alkali soil with a soil layer depth of 45cm, pile up the excavated soil in the open space next to it, level the soil surface, and spread straw evenly. The thickness of the straw is 20cm, and the length o...

Embodiment 2

[0114] This embodiment provides a method for improving coastal saline-alkali land, comprising the following steps:

[0115] (a) Ditch and bury underground pipes in the saline-alkali soil layer to be desalinated. The buried depth of the hidden pipes is 1.0m, the distance between the hidden pipes is 30m, and they are inclined towards the water outlet. One end (end) of the water collection pipe is connected to the water collection pipe, and the slope of the water collection pipe is 1.2‰, forming a drainage layer of the hidden pipe;

[0116] The end of the water collecting pipe is connected with the water collecting well, and the water collecting well is connected with the reservoir through the pipeline, and the water pump is installed on the pipeline;

[0117] (b) Excavate saline-alkali soil with a soil layer depth of 50 cm, pile up the excavated soil in the open space next to it, level the soil surface, and spread straw evenly. The thickness of the straw laying is 30 cm, and the...

Embodiment 3

[0127] This embodiment provides a method for improving coastal saline-alkali land, comprising the following steps:

[0128] (a) Ditch and bury underground pipes in the saline-alkali soil layer to be desalinated. The depth of the buried pipes is 1.5m, the distance between the pipes is 40m, and they are inclined towards the water outlet. The slope of the pipes is 0.5‰. One end (end) of the water collection pipe is connected to the water collection pipe, and the slope of the water collection pipe is 0.8‰, forming a drainage layer of the hidden pipe;

[0129] The end of the water collecting pipe is connected with the water collecting well, and the water collecting well is connected with the reservoir through the pipeline, and the water pump is installed on the pipeline;

[0130] (b) Excavate saline-alkali soil with a soil layer depth of 40cm, pile up the excavated soil in the open space next to it, and spread the straw evenly after leveling the soil surface. The thickness of the s...

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Abstract

The invention provides a coastal saline-alkali soil improvement method, an improved coastal saline-alkali soil structure and an application, and relates to the technical field of saline-alkali soil improvement and restoration. According to the coastal saline-alkali soil improvement method, a concealed pipe drainage layer, an isolation layer and a cultivation layer are arranged in a coastal saline-alkali soil layer, so that rapid desalination of coastal saline-alkali soil can be realized, salt return can be prevented at the same time, the structure and fertility of the soil structure of a tillage layer also can be improved, and effective utilization of water resources is realized. Practice shows that the soil condition of the saline-alkali soil can be gradually improved through the adoptionof the coastal saline-alkali soil improvement method, and the saline-alkali soil can be used for planting common crops after 3-5 years of improvement. The invention further provides the improved coastal saline-alkali soil structure, and the improved coastal saline-alkali soil structure comprises the concealed pipe drainage layer, the isolation layer and the cultivation layer. The invention further provides an application of the coastal saline-alkali soil improvement method or the improved coastal saline-alkali soil structure in the field of saline-alkali soil treatment and restoration.

Description

technical field [0001] The invention relates to the technical field of improvement and restoration of saline-alkali land, in particular to a method for improving coastal saline-alkali land, a structure for improving coastal saline-alkali land and its application. Background technique [0002] my country's mainland coastline starts from the mouth of the Yalu River in the north and ends at the mouth of the Beilun River in Guangxi in the south, with a length of about 1.8×10 4 km, distributed about 14.0×10 4 km 2 The coastal saline-alkali land is an important reserve land resource in my country. The soil in coastal areas has high salinity, and the groundwater is affected by seawater and has a shallow buried depth and high salinity. The salt in the groundwater accumulates in the soil layer with the rising capillary water under the action of strong evaporation on the surface. Bad sex. In order to improve the development and utilization of saline-alkali land, a lot of explorati...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G22/00
CPCA01B79/02A01G22/00
Inventor 周兆媛韩德梁赵立敏田超王鹤立赵欣胜李云飞
Owner MEILIGUOTU BEIJING ECOLOGICAL ENVIRONMENT ENG TECH RES INST CO LTD
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