Water-soil coupling test device for soft rock and sand combined farmland building

A kind of arsenic sandstone, water and soil technology, applied in the field of water-soil coupling test facilities, can solve the problems of reduced reliability of test results, incapable of real-time monitoring of operation and management, etc., to achieve authentic and reliable test results, low management costs, and low construction costs

Active Publication Date: 2015-07-29
国土资源部退化及未利用土地整治工程重点实验室 +1
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Problems solved by technology

However, this method requires a lot of manpower and material resources, and it is impossible to monitor the operation and management of local farmers in real time, which reduces the credibility of the test results.

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  • Water-soil coupling test device for soft rock and sand combined farmland building

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Embodiment Construction

[0021] A water-soil coupling test facility for compounding sandstone and sand for land reclamation, including 8 test areas arranged side by side from No. 1 test area to No. 8 test area and auxiliary equipment installed in the test area; the size of the test area is 15m×12m , built with brick walls whose top is flush with the ground, and the depth of the brick walls is greater than or equal to 60cm; a 1m-wide protective belt is set between each pair of No. 1 experimental area to No. 6 experimental area; No. 6 experimental area to No. 8 experimental area A 2m wide biological protective belt is set between the two and outside the No. 8 test area; the No. 1 test area is the local sandy soil; the No. 2 test area to the No. 8 test area are divided into three test plots of 5m×12m on average. Fill in 30cm thick local sand, and fill the surface with 30cm thick 1:1, 1:2 and 1:5 compound soil of Pisha sandstone and sand respectively; Pisha sandstone particle size is less than 4cm; Irriga...

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Abstract

The invention relates to a water-soil coupling test device for soft rock and sand combined farmland building. The device comprises first to eight test areas and an auxiliary device; the test areas are 15*12m in size and built through brick walls of which the top parts are aligned to the ground; an isolation zone being 1m in width or a biological protection zone being 2m in width is arranged between every two test areas; the first test area is the local original sandy soil; the second to eight test areas are divided into three test sub-areas, sandy soil fills in the bottom layer based on the thickness of 30cm, and soft rock and sand combined soil respectively fill in the surface layer according to the thickness of 30cm; the ratio of the soft rock to the sand in the soft rock and sand combined soil is 1: 1, 1: 2 and 1: 5; the first and second test areas are free of crops; potatoes are planted in the third, fifth and seven test areas; maize is planted in the fourth, sixth and eight test areas. According to the device, the complete test land prepared under a natural environment condition and corresponding auxiliary devices are adopted, so that the test result closest to the truth can be obtained.

Description

technical field [0001] The invention relates to a test facility for studying the coupling of water and soil under the conditions of different environmental parameter ratios in a newly formed soil field. Background technique [0002] Pisha sandstone, also known as "red clay", is widely distributed in the Mu Us sandy land. Once it is exposed, it will be weathered, it will be dusty when it meets the wind, it will loosen when it meets the water, and it will be lost in large quantities with the water, which is called "environmental cancer". The loose structure of sand, leakage of water and fertilizer, cannot form a soil aggregate structure, and it is also the "culprit" that leads to the ecological degradation of land resources. Based on the understanding of the characteristics of the two substances, the inventors proposed to use the complementarity of the physical composition of the "two evils" to combine the two into a new type of "soil", thus turning the two "harms" into one "...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/00A01G1/00
Inventor 刘彦随成生权王曙光
Owner 国土资源部退化及未利用土地整治工程重点实验室
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