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Artificial soil for treating saline-alkali soil and use method of artificial soil

A technology of artificial soil and saline-alkali land, applied in the direction of soil preparation, application, agriculture, etc., can solve the problems of high cost and inability to fundamentally realize governance, so as to increase agricultural income, realize high value-added utilization, and have long-term effective governance effects Effect

Pending Publication Date: 2022-03-18
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the stock of saline-alkali land is still so huge, it means that the existing technical measures are far from enough, and many improvement measures are either costly or cannot fundamentally achieve governance. Therefore, it is necessary to rely on technological innovation to continuously open up new areas. technical measures

Method used

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  • Artificial soil for treating saline-alkali soil and use method of artificial soil

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Experimental program
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Effect test

Embodiment 1

[0043] A method for using artificial land to control saline-alkali land, specifically comprising the following steps:

[0044] Step 1. Evaluation and analysis of site characteristics and environmental characteristics;

[0045] Evaluate and analyze specific saline-alkali land sites, including: area of ​​saline-alkali land, type of saline-alkali and degree of salinization, analysis of physical and mechanical properties of undisturbed soil or undisturbed sand (including composition analysis, pH measurement, density, specific gravity, porosity, etc. Mechanical property index), saline-alkali cause analysis;

[0046] Analyze the environmental characteristics of specific sites, including: surface water runoff and groundwater occurrence, air quality, climatic conditions, and ecosystem types; at the same time, specify the expected treatment area;

[0047] Step 2. artificial soil;

[0048] Sub-step a. Customized formula of artificial soil;

[0049] The artificial soil raw material is...

Embodiment 2

[0074] Step 1. Evaluation and analysis of site characteristics and environmental characteristics;

[0075] The saline-alkali site is evaluated and analyzed. The saline-alkali treatment area is 10,000 square meters, and the saline-alkali level is intermediate. Take part of the undisturbed soil for mineral identification, elemental analysis, mechanical property test, pH, density, specific gravity, porosity and other physical indicators. and other tests to obtain the physical and chemical properties of the original saline-alkali soil, and analyze the cause of saline-alkali: mainly due to the tension difference caused by capillary action, the salt migrates from the bottom to the top with the water, and then the water evaporates, and the salt accumulates on the soil surface. Due to the terrain, the effect of salt spraying is not good.

[0076] The environmental characteristics of the saline-alkali site are analyzed. This area belongs to the warm temperate semi-humid climate zone, w...

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Abstract

The invention belongs to the technical field of ecological environmental protection, desert sand and bulk solid waste resource utilization and saline-alkali soil treatment and utilization, and particularly relates to artificial soil for treating saline-alkali soil and a use method of the artificial soil. A guiding idea of changing'improvement 'into'treatment' is provided, various bulk coal-based solid wastes, desert sand, waste sandy soil and other various suitable materials are used for producing artificial soil with good quality through an artificial means, saline-alkali soil which is not suitable for plant growth is replaced or mixed with the saline-alkali soil, and a soil structure with planting capacity, water and fertilizer retention capacity and sufficient nutrient substances is formed. According to the technical route, planting profit of the upper artificial land is not delayed, meanwhile, the original saline-alkali soil on the lower portion is provided with the rest time, many difficulties and defects in the existing saline-alkali soil improvement process can be avoided, for example, the scale is small, and repeated salinization is prone to occurring. The saline-alkali soil treatment method can give consideration to solid waste treatment, ecological restoration and economic value-added benefits, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical fields of ecological environmental protection, resource utilization of desert sand and bulk solid waste, saline-alkali land treatment and utilization, and specifically relates to an artificial soil for saline-alkali land treatment and a method for using the same. Background technique [0002] Land salinization is an important phenomenon of desertification. It is a combination of salinization and alkalization, and it is also a land degradation phenomenon. The scale of saline-alkali land in the world is extremely large. China is a big country with saline-alkali land. It is reported that the area of ​​saline-alkali soil in my country exceeds 130 million mu. It is because the overcoming of saline-alkali land faces great challenges, and it is one of the hotspots and priorities of current research. For a large country like ours with scarce arable land, on the one hand, such a large scale of degraded land is a precious r...

Claims

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Application Information

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IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 白冰次惠岭雷宏武崔银祥
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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