Method for constructing water-circulation plant salinity gradient field testing ground

A technology for constructing methods and degree gradients, which is applied in botany equipment and methods, soil preparation methods, plant cultivation, etc., and can solve problems affecting test development, large fluctuations in test conditions, large changes in groundwater level and salinity, etc.

Active Publication Date: 2019-07-05
THIRD INST OF OCEANOGRAPHY MINIST OF NATURAL RESOURCES
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Problems solved by technology

[0002] The traditional salinity gradient field test, one is to use the natural saline-alkali land with salinity gradient changes in the offshore area to carry out field tests in different plots, but the test conditions fluctuate greatly due to the relatively large changes in the water level and salinity of the groundwater; One is to build a cement pool, backfill the planting soil, and inject water with different salinity. However, due to the high cost of the cement pool, and the bottom is easy to crack, salt water will leak into the groundwater, resulting in pollution of natural water sources.
In addition, the general field test sites are not equipped with groundwater circulation devices, which brings a lot of inconvenience to the tests of plant growth, soil moisture content, groundwater quality, etc. carry out

Method used

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  • Method for constructing water-circulation plant salinity gradient field testing ground
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  • Method for constructing water-circulation plant salinity gradient field testing ground

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Embodiment Construction

[0024] In order to achieve the above-mentioned purpose and effect, and to further understand the technical solution of the present invention, the preferred embodiments are enumerated below, and in conjunction with the accompanying drawings, the detailed description is as follows:

[0025] In the best embodiment of the present invention, the main construction process includes: mechanically digging the pond - laying the anti-seepage membrane - installing the seepage pipe - backfilling the planting soil - installing the water circulation system.

[0026] The specific implementation steps are as follows:

[0027] 1. Mechanical pond digging: Four rectangular ponds with a length of 10 m, a width of 7.5 m, and a depth of 1.5 m were dug in the selected experimental area with a wheeled excavator, and the excavated soil was piled up next to it for subsequent backfilling. The four pools are arranged in the shape of a "field", the width of the partition walls of the pools is about 50 cm, ...

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Abstract

The invention discloses a method for constructing water-circulation plant salinity gradient field testing ground. The method comprises the construction processes of pool digging, laying of anti-seepage membranes, installation of seepage pipes, backfilling of planting soil, blending of groundwater and installation of a water circulation system. The anti-seepage membranes are laid at the bottoms andwalls of pools to prevent the situation that salty groundwater in the salt pools is lost and pollutes the groundwater, the perforated seepage pipes are installed at the bottoms of the pools, the groundwater flows back into the pipes through holes in the pipe walls, water taking pumps are adopted for ground surface irrigation or aerial spraying, the circulation of the groundwater is kept, and a salt stress test is conducted on plant leaves and roots.

Description

technical field [0001] The invention relates to the field of salt pond construction, in particular to a method for constructing a plant salinity gradient field test site for internal circulation of groundwater. Background technique [0002] The traditional salinity gradient field test, one is to use the natural saline-alkali land with salinity gradient changes in the offshore area to carry out field tests in different plots, but the test conditions fluctuate greatly due to the relatively large changes in the water level and salinity of the groundwater; One is to build a cement pool, backfill the planting soil, and inject water with different salinity. However, due to the high cost of the cement pool, and the bottom is easy to crack, salt water will leak into the groundwater, resulting in pollution of natural water sources. In addition, the general field test sites are not equipped with groundwater circulation devices, which brings a lot of inconvenience to the tests of plant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00A01G25/02A01B79/02
CPCA01B79/02A01G25/02A01G22/00Y02A40/22
Inventor 汤坤贤
Owner THIRD INST OF OCEANOGRAPHY MINIST OF NATURAL RESOURCES
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