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Method for preventing and controlling wind-eroded desertified soil

A technology of desertified soil and sandy soil, which is applied in the field of desertification control, can solve the problems of difficult sand fixation and chemical residue, and achieve the effect of improving soil, improving soil structure and environment, and reducing soil and water desertification

Inactive Publication Date: 2019-01-25
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can fundamentally solve the problem of chemical residue and difficult sand fixation in traditional sand control methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation method of the soil curing agent is as follows: put the attapulgite, lignin, water and Moringa leaves into the mixer according to the above weight parts, fully stir and dissolve, and disperse evenly;

[0023] (3) Vegetation restoration: Select saline-resistant sandy dates, and carry out hole-sowing in a ventilated sand barrier at a distance of 10-20 cm. The depth of the holes is 30-50 cm. Plant 2-4 seedlings of sandy dates in each hole, water and cover with soil after sowing , and then according to the soil moisture situation, every 15 to 18 days to irrigate the Elaeoptera seedlings, and the existing water and fertilizer dropper method can be used in the watering process of the Elaeoptera seedlings.

[0024] The ventilation structure sand barrier in the described step (1) is to make the sand barrier materials such as reeds, Achnatherum splendens, and slats into a height of 40-70cm, draw lines on the sand dunes, and ditch 20-30cm deep along the line, and th...

Embodiment 1

[0031] (1) Pretreatment of desertified soil: build a ventilated sand barrier on the sand to be treated, and the slope of the ventilated sand barrier is 11°.

[0032] (2) Preparation and use of soil curing agent: Cut the cross-linking agent into blocks with a size of 1*1m, spread it into the sand barrier of the ventilation structure, and then spray the soil curing agent on the surface of the cross-linking agent with spray equipment Form a uniform slurry layer;

[0033] The proportioning of the soil curing agent and the crosslinking agent in parts by weight is: 10 parts of attapulgite, 10 parts of lignin, 1 part of Moringa leaf, 2 parts of crosslinking agent, and 100 parts of water;

[0034] The preparation method of the soil curing agent is as follows: put the attapulgite, lignin, water and Moringa leaves into the mixer according to the above weight parts, fully stir and dissolve, and disperse evenly;

[0035] (3) Vegetation Restoration: Select saline-resistant sandy jujube, a...

Embodiment 2

[0043] (1) Pretreatment of desertified soil: build a sand barrier with a ventilation structure on the sand to be treated, and the slope of the sand barrier with a ventilation structure is 12°.

[0044] (2) Preparation and use of soil curing agent: Cut the crosslinking agent into blocks with a size of 0.7*0.7m, lay them flat in the sand barrier of the ventilated structure, and then spray the soil curing agent on the crosslinking agent with spray equipment A uniform slurry layer is formed on the surface;

[0045] The proportioning of the soil curing agent and the crosslinking agent in parts by weight is: 11 parts of attapulgite, 11 parts of lignin, 2 parts of Moringa leaves, 3 parts of crosslinking agent, and 125 parts of water;

[0046] The preparation method of the soil curing agent is as follows: put the attapulgite, lignin, water and Moringa leaves into the mixer according to the above weight parts, fully stir and dissolve, and disperse evenly;

[0047] (3) Vegetation Resto...

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Abstract

The invention discloses a method for preventing and controlling wind-eroded desertified soil. The method for preventing and controlling wind-eroded desertified soil comprises the following steps: pretreatment of desertified soil, preparation and use of a soil curing agent and vegetation recovery. By the method, while it effectively ensures that land is not desertified by a green way, the physicochemical property of soil can be improved, soil is improved, and the structure and environment of the soil are improved. The soil curing agent is mixed with organic matters such as horseradish tree leaves, in combination with a biological crosslinking agent, the method has functions of improving fertility, retaining water, improving inorganic salt tolerance and increasing the yield of land vegetation, humic acid in the implemented organic fertilizer provides nutrients for the biological crosslinking agent in the treated soil, and the water-retaining property of aggregates is further improved.

Description

technical field [0001] The invention belongs to the field of desertification control technology, in particular to a method for preventing and controlling wind erosion of desertified soil. Background technique [0002] The pedosphere is the most active sphere on the surface of the earth, the link of the five spheres and the foundation of the terrestrial ecosystem. However, due to man-made (number of livestock, arable land area, population size) and natural (precipitation, evaporation, temperature, sand transport, frequency of sandstorms), the natural environment of the soil has been seriously damaged and soil desertification has been exacerbated. [0003] According to the "United Nations Convention to Combat Desertification" on September 6, 2014, by the end of 2009, the area of ​​desertified land in China was 2.62×10 6 km 2 Accounting for 27.3% of the country's land area, it is mainly distributed in the northern and northwestern regions of China. At present, the control te...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G17/00C09K17/40C09K105/00
CPCA01B79/02A01G17/005C09K17/40C09K2105/00Y02P60/20Y02A40/22
Inventor 丁辉薛花赵丹梁奔强郝利静
Owner TIANJIN UNIV
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