A saline-alkali land governance structure
A technology of saline-alkali land and layered structure, which is applied in the direction of soil preparation methods, applications, agricultural machinery and tools, etc., can solve problems affecting economic development, surrounding saline-alkali migration, high saline-alkali content, etc., to improve the pH of the original soil, simple construction, The effect of reducing the salinity content
Active Publication Date: 2017-02-01
BEIJING ORIENT LANDSCAPE
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Problems solved by technology
my country has a large area of saline-alkali soil with high saline-alkali content, most of which are located in coastal areas or inland arid areas in Northwest China, seriously affecting local economic development
[0003] At present, salt discharge and salt isolation are one of the main measures for saline-alkali control. However, in the existing saline-alkali land treatment schemes, a simple planar salt discharge method is often used; this simple planar salt discharge method is easy to cause Peripheral salinity migrates to the improved soil and thus leads to secondary salinization
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[0019] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0020] A kind of saline-alkali land control structure of the present invention, see figure 1 , its structure includes a vertical layered structure and a horizontal salt-expelling structure, the vertical layered structure includes the first zeolite crushed stone mixed layer 2 in the lower layer, the geotextile layer 3 in the middle layer and the original soil improvement layer 4 in the upper layer, wherein the The height of the first zeolite gravel mixed layer 2 is 20-35cm, and the original soil improvement layer 4 is furfural residue, peat soil and original soil with a volume ratio of 0.5-2:1-3:10-20; the first zeolite The bottom of the crushed stone mixed layer 2 is provided with a salt discharge concealed pipe 1, which is 1 to 2 m above the ground and 60 to 110 mm in diameter; The salt-expelling and salt-separating ...
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The invention relates to a saline-alkali soil management structure. The saline-alkali soil management structure includes a vertical layer structure and a horizontal salt discharge structure, wherein the vertical layer structure includes a lower first zeolite and rubble mixing layer, an intermediate geotechnical cloth layer, and an upper original soil improvement layer; the horizontal salt discharge structure includes a salt discharge and isolation layer arranged between unimproved soil and the original soil improvement layer. The saline-alkali soil management structure is a structure for horizontal and vertical sufficient salt isolation and discharge, integrates multiple functions of salt discharge, salt isolation, secondary salinization prevention, promotion of plant growth and the like, and is simple to construct. Meanwhile, the saline-alkali soil management structure increases the pH value of the original soil, improves the saline-alkali soil structure, and has the function of reducing the saline-alkali content of surrounding unimproved soil areas.
Description
technical field [0001] The invention relates to a soil governance structure, in particular to a saline-alkali soil governance structure. Background technique [0002] Saline-alkali soil refers to the soil that contains soluble salts and has a high salt concentration. This kind of soil environment will directly inhibit or harm the growth of plants. my country's existing saline-alkali soil has a large area and high saline-alkali content, most of which are located in coastal areas or inland arid areas in northwest China, seriously affecting local economic development. [0003] At present, salt discharge and salt separation are one of the main measures for saline-alkali control. However, in the existing saline-alkali land treatment schemes, a simple planar salt discharge method is often used; this simple planar salt discharge method is easy to cause Surrounding salinity migrates to the improved soil and thus leads to secondary salinization. Contents of the invention [0004]...
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IPC IPC(8): A01B79/00
Inventor 高彦波马亚云杨丽晶王婉清翟鹏辉樊蓓莉谭德远郭宏凯
Owner BEIJING ORIENT LANDSCAPE