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Method for improving saline-alkaline soil

A soil and saline-alkali technology, which is applied in the field of soil preparation methods, botany equipment and methods, gardening, etc., can solve the problems that various functions cannot be fully exerted, and landscaping plants cannot grow well, so as to inhibit secondary salinization, Improve the survival rate of planting and reduce the effect of evaporation

Inactive Publication Date: 2019-08-30
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics and changes of this kind of soil limit its function to varying degrees, resulting in the failure of landscaping plants to grow well, and various functions such as landscaping ecology and landscape cannot be fully exerted. Therefore, urban landscaping soil improvement is a must for landscaping work. important things to implement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for improving saline-alkaline soil, comprising the following steps:

[0023] (1) Dig a planting hole in the saline-alkali land to be improved. The depth of the planting hole is 20cm higher than the height of the seedling soil ball. After the planting hole is expanded, 10cm thick pebbles are laid on the bottom of the hole, and then guest soil is applied to the hole. The above-mentioned expansion The size of the final tree hole is the size of the soil ball and the bottom is expanded by 50cm;

[0024] (2) Lay stones with a diameter of 2cm, 4cm, and 6cm at the bottom of the planting hole to form a stone layer, among which the large stones are laid on the bottom, and the small stones are laid on the top. The thickness of the stone layer is 20cm, and then lay 5cm thick Sand layer, lay permeable geotextile on the coarse sand layer, lay planting soil layer on the permeable geotextile, the thickness of the planting soil layer is 20cm, plant seedlings on the planting soi...

Embodiment 2

[0028] A method for improving saline-alkaline soil, comprising the following steps:

[0029] (1) Dig a planting hole in the saline-alkali land to be improved. The depth of the planting hole is 22cm higher than the height of the seedling soil ball. After expanding the planting hole, lay 15cm thick pebbles at the bottom of the hole, and then apply guest soil in the hole. The above-mentioned expansion The size of the final tree hole is the size of the soil ball and the bottom is expanded by 50cm;

[0030] (2) Lay stones with a diameter of 2cm, 4cm, and 6cm at the bottom of the planting hole to form a stone layer, wherein the large stones are laid on the bottom, and the small stones are laid on the top. The thickness of the stone layer is 23cm, and then lay 5- 108cm coarse sand layer, lay permeable geotextile on the coarse sand layer, lay planting soil layer on the permeable geotextile, the thickness of planting soil layer is 24cm, plant seedlings on the planting soil layer, above...

Embodiment 3

[0034] A method for improving saline-alkaline soil, comprising the following steps:

[0035] (1) Dig a planting hole in the saline-alkali land to be improved. The depth of the planting hole is 25cm higher than the height of the seedling soil ball. After the planting hole is expanded, 20cm thick pebbles are laid at the bottom of the hole, and then guest soil is applied to the hole. The above-mentioned expansion The size of the final tree hole is the size of the soil ball and the bottom is expanded by 50cm;

[0036] (2) Lay stones with diameters of 2cm, 4cm, and 6cm at the bottom of the planting hole to form a stone layer, among which the large stones are laid on the bottom, and the small stones are laid on the top. The thickness of the stone layer is 25cm, and then lay 10cm thick Sand layer, laying permeable geotextile on the coarse sand layer, laying planting soil layer on the permeable geotextile, the thickness of the planting soil layer is 25cm, planting seedlings on the pla...

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Abstract

The invention discloses a method for improving saline-alkaline soil. The method comprises the following steps: (1) digging planting holes in the saline-alkali soil to be improved, expanding the planting holes, laying an isolation layer at the bottom of each hole, and then applying soil dressing to the holes; (2) separately laying a stone layer and a coarse sand layer at the bottom of each plantinghole, laying a water-permeable geotextile on each coarse sand layer, laying a planting soil layer on each water-permeable geotextile, and planting nursery stocks on the planting soil layers; (3) arranging drainage pipes at the bottoms of the stone layers downwards to drainage ditches. By adopting the method for improving the saline-alkaline soil, on one hand, high-salt-content moisture around andunder tree holes is desalted; on the other hand, accumulated water generated around the roots of the planted nursery stocks is naturally dredged to the outside so that secondary salinization of the soil dressing can be effectively inhibited; furthermore, by cooperating with the nursery stocks, a new ecological system is formed, so that soil salinization is effectively improved.

Description

technical field [0001] The invention relates to a method for improving soil, in particular to a method for improving saline-alkaline soil. Background technique [0002] At present, urban landscaping is an important part of urban development planning and the only living infrastructure in the city. It has irreplaceable significance in beautifying the urban landscape and protecting the urban ecological environment. The soil is an important part of the urban ecological system and an effective lever to adjust the quality of the urban ecological environment. The quality of the soil directly affects the growth of plants and the effect of ecological landscape. my country's soil pH can be divided into five levels, that is, strongly acidic is PH<5.0, acidic is PH5.0-6.5, neutral is PH6.5-7.5, alkaline is PH7.5-8.5, and strongly alkaline is PH>8.5. The saline-alkali environment on the earth's surface is a geographical factor with macroscopic significance. The so-called saline-a...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G17/00A01G22/00
CPCA01B79/02A01G17/005A01G22/00
Inventor 张晓敏闫天亮陈静静张小亮苌仕彪
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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