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Method for original soil greening of saline-alkali land through root salinity control technology using weak-acidity ion exchange resin

A kind of ion exchange resin, original soil greening technology

Inactive Publication Date: 2017-01-25
SHANDONG SUNWAY LANDSCAPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The effect of improving the physical and chemical properties of soil in saline-alkali land is poor;
[0007] 2. The salt content in the soil cannot be well controlled within the range suitable for plant growth;
[0008] 3. Poor adjustment effect on the concentration of soil ions in saline-alkali land

Method used

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  • Method for original soil greening of saline-alkali land through root salinity control technology using weak-acidity ion exchange resin
  • Method for original soil greening of saline-alkali land through root salinity control technology using weak-acidity ion exchange resin
  • Method for original soil greening of saline-alkali land through root salinity control technology using weak-acidity ion exchange resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 A Root Salt Control Technology Using Weakly Acidic Ion Exchange Resin

[0036] Step 1 Selection of saline-alkali land

[0037] In the selected saline-alkali land, the total porosity of the soil in the soil layer of 0-50cm is 37.6-43.8%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.57-0.69%, and the bulk density of the soil is 1.48-1.54g / cm3, the non-capillary porosity in the soil is 1.24-1.33%, the content of Cl- is 2.65-3.19g / kg, and the content of Na+ is 1.34-1.83g / kg.

[0038] Step 2 Excavate the saline-alkali land for planting

[0039] Dig the planting soil to a depth of 139cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0040] Step 3 Laying the salt drainage layer

[0041] Concealed pipes are buried at the bottom of the excavated planting ground. The hidden pipes are made of 110 diameter PVC perforated corrugated pipes, the thickness of the outer sand filte...

Embodiment 2

[0052] Embodiment 2 A kind of method that adopts the root salt control technique of weakly acidic ion exchange resin to carry out original soil greening on saline-alkali land

[0053] Step 1 Selection of saline-alkali land

[0054] In the selected saline-alkali land, the total porosity of the soil in the soil layer of 0-50cm is 37.6-43.8%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.57-0.69%, and the bulk density of the soil is 1.48-1.54g / cm3, the non-capillary porosity in the soil is 1.24-1.33%, the content of Cl- is 2.65-3.19g / kg, and the content of Na+ is 1.34-1.83g / kg.

[0055] Step 2 Excavate the saline-alkali land for planting

[0056] Dig the planting soil to a depth of 145cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0057] Step 3 Laying the salt drainage layer

[0058] Concealed pipes are buried at the bottom of the excavated planting ground. The hidden pipes are mad...

Embodiment 3

[0069] Embodiment 3 A kind of method that adopts the root salt control technique of weakly acidic ion exchange resin to carry out original soil greening on saline-alkali land

[0070] Step 1 Selection of saline-alkali land

[0071] In the selected saline-alkali land, the total porosity of the soil in the soil layer of 0-50cm is 37.6-43.8%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.57-0.69%, and the bulk density of the soil is 1.48-1.54g / cm3, the non-capillary porosity in the soil is 1.24-1.33%, the content of Cl- is 2.65-3.19g / kg, and the content of Na+ is 1.34-1.83g / kg.

[0072] Step 2 Excavate the saline-alkali land for planting

[0073] Dig the planting soil to a depth of 153cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0074] Step 3 Laying the salt drainage layer

[0075] Concealed pipes are buried at the bottom of the excavated planting ground. The hidden pipes are mad...

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Abstract

The invention provides a method for original soil greening of saline-alkali land through the root salinity control technology using weak-acidity ion exchange resin. The method includes the step of laying an infiltration layer which comprises weak-acidity ion exchange resin, peach shell activated carbon, white birch sawdust, rock wool, Chinese parasol bark and weathered coal. The method has the advantages that physical and chemical properties of soil in saline-alkali land are well improved, after three months, the soil non-capillary porosity of the middle of the main root of Chinese junipers is 3.14-4.21%, the soil non-capillary porosity of the lower portion of the main root of Chinese junipers is 3.17-4.15%, the soil salt content of the middle of the main root of Chinese junipers is 0.16-0.21%, and the soil salt content of the lower portion of the main root of Chinese junipers is 0.17-0.23%.

Description

technical field [0001] The invention relates to a method for afforesting original soil on saline-alkali land by using the root salt control technology of weakly acidic ion exchange resin, which belongs to the technical field of agricultural utilization. Background technique [0002] At present, my country's water and soil resources can only guarantee 500 million tons of grain production capacity, which is far from meeting the huge demand of the growing population. At the same time, my country's energy shortage contradiction is becoming increasingly acute, and the development of biomass energy must ensure the premise of "food security". my country currently owns coastal tidal flats with a total area of ​​nearly 40 million mu, which are important reserve land resources in my country. The development and utilization of saline-alkali soil in coastal tidal flats can not only provide food sources, but also become the production carrier of important salt-tolerant plants such as ene...

Claims

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Application Information

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IPC IPC(8): A01B79/02C09K17/40C09K101/00
CPCA01B79/02C09K17/40C09K2101/00Y02A40/10
Inventor 王胜
Owner SHANDONG SUNWAY LANDSCAPE TECH
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