Device for accelerating soil gas exchange and updating in shallow groundwater buried areas

A soil gas and groundwater technology, applied in soil protection, soil lifting machinery, agricultural machinery and implements, etc., can solve the problems of poor soil ventilation, slow soil gas renewal, and cold soil properties, and achieve low cost and improved Effects of Soil Thermal Conditions, Automatic Exchange and Renewal Improvements

Inactive Publication Date: 2019-10-01
XIAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a device for promoting soil gas exchange and renewal in shallow groundwater buried areas, which solves the problems of poor soil ventilation, slow soil gas renewal, and cool soil in shallow groundwater buried areas

Method used

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  • Device for accelerating soil gas exchange and updating in shallow groundwater buried areas
  • Device for accelerating soil gas exchange and updating in shallow groundwater buried areas

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0029] The specific implementation method is as follows:

[0030] Step 1, excavate the soil layer 7 in the farmland of the shallow groundwater buried area, and bury the hidden pipe 1. The buried depth of the hidden pipe 1 is determined to be 60-200cm according to the soil texture and the change of the groundwater level, and the thickness of the filter material layer 6 is not less than 10cm. The longitudinal gradient of the dark pipe 1 is 0.5%, and a water-stop sealing valve 5 is provided at the outlet of the dark pipe 1 , and the drainage of the dark pipe 1 flows to the drain 8 . After the underground pipe 1 is buried, the soil layer 7 is backfilled.

[0031] Step 2, use a puncher to drill down the ventilation hole 2 on the upper surface of the hidden pipe 1, the lower part of the ventilation hole 2 is connected to the filter material layer 6 but does not touch the dark pipe 1, and the interval between adjacent ventilation holes 2 is 10-20m .

[0032] Step 3, use a puncher t...

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Abstract

The invention discloses a device for accelerating soil gas exchange and updating in shallow groundwater buried areas. The device comprises a hidden pipe, multiple ventilation holes and a ventilation pipe; the ventilation holes are formed in the axial direction of the hidden pipe in sequence; one end of the hidden pipe communicates with the ventilation pipe; the ventilation pipe is provided with apowerless fan; a waterproof sealing valve is arranged at the other end of the hidden pipe; and the longitudinal slope drop of the hidden pipe is 0.4-0.6%. The device uses the hidden pipe for quickly controlling the groundwater level, and meanwhile, achieves the effects of automatically accelerating automatic exchange and updating of deep soil gas and automatically increasing the ground temperature. The device is simple in process, convenient to maintain and low in production cost, effectively improves the use efficiency of a hidden pipe system, improves the soil permeability and the soil heatconditions, improves the plant growth environments in the shallow groundwater buried areas, and is free of environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and relates to a device for promoting soil gas exchange and renewal in shallow groundwater buried areas. Background technique [0002] In the process of plant growth, in addition to the need for suitable water and fertilizer supply, the soil is also required to have good air permeability and suitable temperature to ensure the respiration of the root system and the activities of soil microorganisms. Insufficient soil oxygen supply and low soil temperature will cause the respiration process of plant roots to be inhibited, the speed of plant roots to absorb water and nutrients from the soil will also decrease, and the transformation and formation of carbohydrates in plant tissues will be hindered. If the root system is in an environment with low oxygen content and low soil temperature for a long time, the vitality and respiration capacity of the root system will be reduced, and it will not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D3/10A01B77/00
CPCA01B77/00E02D3/00E02D3/10
Inventor 宁松瑞王全九周蓓蓓
Owner XIAN UNIV OF TECH
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