Soil salinization alleviating system

A salinization and soil technology, applied in the direction of soil lifting machinery, soil preparation methods, agricultural machinery and tools, etc., can solve the problem of not being able to well inhibit the rise of soil salinity, not being able to well eliminate the accumulation of salt, and unfavorable for long-term promotion and use, etc. problems, to achieve the effect of improving soil aggregate structure and water properties, reducing the speed of surface salt accumulation, and improving soil salinization

Inactive Publication Date: 2019-12-03
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention uses the deep plowing and fertilization device to deep plow the soil and inject the required water or aggregate structure. The groundwater level monitoring device can prevent soil salinization in advance, but it has the following disadvantages: the soil is only fertilized by deep plowing. Improvement cannot well suppress the moisture in the soil and the rise of salt in groundwater, nor can it eliminate the accumulation of salt in the soil, and it needs to apply a large amount of organic fertilizer for soil improvement, which is costly. At the same time, the system An additional groundwater level monitoring device is required, which is inconvenient to operate and consumes a lot of power, which is not conducive to long-term promotion and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A soil salinization improvement system, comprising the steps of:

[0028] Step 1. Digging ditches: Dig deep in the soil area to be improved, and excavate and build ditches. The inclined slope flows into the ditches, avoiding the soil salinization caused by the rise of the groundwater level, and the distance between two adjacent ditches is 30m, and the length of each ditch is 15m, the width is 5m, and the depth is 4m;

[0029] Step 2: Establish terrace fields: Excavate the foundation pit in the soil area on both sides of the ditch excavated in step 1. The excavation depth of the foundation pit is half of the depth of the ditch, and lay a layer of sand on the bottom of the foundation pit. The laid sand layer The thickness is 3cm, and it is used as a reverse osmosis layer to inhibit the surface accumulation of salt in the underlying soil and groundwater as the soil capillary water rises, effectively improving soil salinization. After the sand is laid, the plastic film wit...

Embodiment 2

[0034] A soil salinization improvement system, comprising the steps of:

[0035] Step 1. Digging ditches: Dig deep in the soil area to be improved, and excavate and build ditches. The inclined slope flows into the ditch to avoid soil salinization caused by the rise of the groundwater level. The distance between the ditch and two adjacent ditches is 35m. The length of each ditch is 18m, the width is 6m, and the depth is 4.2m;

[0036] Step 2: Establish terrace fields: Excavate the foundation pit in the soil area on both sides of the ditch excavated in step 1. The excavation depth of the foundation pit is half of the depth of the ditch, and lay a layer of sand on the bottom of the foundation pit. The laid sand layer With a thickness of 4cm, it is used as a reverse osmosis layer to inhibit the surface accumulation of salt in the underlying soil and groundwater as the soil capillary water rises, effectively improving soil salinization. After the sand is laid, the plastic film wit...

Embodiment 3

[0041] A soil salinization improvement system, comprising the steps of:

[0042] Step 1. Digging ditches: Dig deep in the soil area to be improved, and excavate and build ditches. The inclined slope flows into the ditches, avoiding the soil salinization caused by the rise of the groundwater level, and the distance between two adjacent ditches is 40m, and the length of each ditch is 20m, the width is 8m, and the depth is 5m;

[0043] Step 2: Establish terrace fields: Excavate the foundation pit in the soil area on both sides of the ditch excavated in step 1. The excavation depth of the foundation pit is half of the depth of the ditch, and lay a layer of sand on the bottom of the foundation pit. The laid sand layer The thickness is 5cm, and it is used as a reverse osmosis layer to inhibit the surface accumulation of salt in the underlying soil and groundwater as the soil capillary water rises, effectively improving soil salinization. After the sand is laid, the plastic film wit...

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PUM

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Abstract

The invention discloses a soil salinization alleviating system, and belongs to the field of soil improvement. A method comprises the following steps of 1, digging trenches; 2, establishing a platformfield; 3, building underground drainage pipes; 4, establishing circular farming; 5, conducting periodic maintenance. According to the system, the method of digging the trenches, establishing the platform field, building the underground drainage pipes, establishing circular farming and conducting periodic maintenance is adopted, and through a series of management and utilization procedures of wateraccumulation, fish and shrimp breeding, watering for crops, drainage of the drainage pipes and the like, the salt leaching effect can be effectively promoted, and water is discharged into the trenches through the underground drainage pipes; salt in the soil is constantly discharged to reduce accumulation of the salt in the soil, the underground water level of the soil can also be controlled and lowered to prevent salt agglomeration on the surface soil or salt return and accumulation, and finally, soil salinization is alleviated.

Description

technical field [0001] The invention relates to the field of soil improvement, in particular to a soil salinization improvement system. Background technique [0002] Soil salinization refers to the process in which the salt in the bottom soil or groundwater rises to the surface with the capillary water. After the water evaporates, the salt accumulates in the surface soil. Alkalizing. Due to its high salinity, high pH value and poor nutrients, saline soil leads to poor soil fertility and low productivity, which greatly affects plant growth and ecological environment. And my country is also a country with a wide distribution of saline soil. The saline soil or saline-alkali soil in my country has a wide distribution range, a large area, and many types, with a total area of ​​about 100 million hectares. Therefore, soil salinization is of great significance to increasing land resources, alleviating land tension, and improving the ecological environment. [0003] In the patent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B77/00A01B79/02
CPCA01B77/00A01B79/02
Inventor 肖蒙陈金林
Owner NANJING FORESTRY UNIV
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