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Arid region heavily-salted original soil afforesting method

A kind of original soil greening and arid area technology, which is applied in the field of heavy saline original soil greening in arid areas, can solve the problems of high drainage facilities, high cost, and large consumption of fresh water resources, so as to increase soil permeability and solve unsustainable , increase the effect of the ripening process

Active Publication Date: 2014-10-08
新疆中农宏远农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In agricultural production, people often use "flood irrigation and salt pressure" to wash off excess soil salt, but this method requires high drainage facilities, costs a lot and consumes a lot of fresh water resources
The more commonly used method for saline soil greening is foreign soil replacement, that is, non-saline soil substrate is used to replace the saline soil at a certain depth, and greening is carried out on the foreign soil after isolation measures, which usually have high cost and low follow-up survival rate problems, and it is difficult to achieve a stable and sustainable greening system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] From 2009 to 2010, experiments and demonstrations were carried out on abandoned and heavily saline-alkali land in the Karamay Agricultural Comprehensive Development Zone:

[0022] Adding sand to improve soil structure

[0023] a. Select heavy saline soil as heavy saline-alkali soil with heavy compaction. In view of the characteristics of soil viscosity and poor permeability, adopt sand-mixed improvement method to improve soil water permeability. For the 40cm topsoil layer in the greening area, the volume ratio is 20%. Sand mixed treatment, plow depth 0.4m;

[0024] first year greening

[0025] b. Sowing: Lay drip irrigation belts in parallel at a distance of 0.6m, sow Suaeda salsa seeds on both sides of the drip irrigation belts to form a 0.3m sowing belt;

[0026] c. Irrigation: Irrigate immediately after sowing, and irrigate once every 2 days during the emergence period. The volume is controlled at 120m 3 / hm 2 ;

[0027] d. Harvesting: Harvest the aerial parts ...

Embodiment 2

[0033] From 2011 to 2012, experiments were carried out on the Xinken saline-alkali land in Xiaoguai Township, Karamay:

[0034] Adding sand to improve soil structure

[0035] a. Select heavy saline soil as heavy saline-alkali soil with heavy compaction. In view of the characteristics of soil viscosity and poor permeability, adopt sand-mixed improvement method to improve soil water permeability. For the 40cm topsoil layer in the greening area, the volume ratio is 20%. Sand mixed treatment, plow depth 0.4m;

[0036] first year greening

[0037] b. Sowing: Arrange drip irrigation belts in parallel at a distance of 0.8m, and spread Suaeda salsa seeds on both sides of the drip irrigation belts to form a 0.4m sowing belt;

[0038] c. Irrigation: Irrigate immediately after sowing, and irrigate once every 2 days during the emergence period. The volume is controlled at 150m 3 / hm 2 ;

[0039] d. Harvesting: Harvest the aerial parts of Suaeda salsa from late October to early Novem...

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Abstract

The invention discloses an arid region heavily-salted original soil afforesting method. The arid region heavily-salted original soil afforesting method includes the steps that sand doping is firstly carried out to improve the physical structure of soil in a planting area, annual growth halophyte is planted in the first year to achieve afforesting and soil partial desalting, ridging is carried out in the second year to construct furrow terrains, tamarix chinensis, amorpha fruticosa and sweet clover which are resistant to salt are planted on ridges in a trickle irrigation mode to achieve biological salt moving and soil fertilizing, and suaeda salsa is planted in furrows in a trickle irrigation mode to increase the earth surface cover degree, improve physical-chemical properties of soil and desalt the soil. By means of the arid region heavily-salted original soil afforesting method, the physical improvement and the biological improvement of the salted soil are integrated, the technical measures of furrow cultivation and water saving trickle irrigation are combined, the arid region heavily-salted original soil afforesting method is easy and convenient to operate and low in cost, and the stability and the sustainability of the heavily-salted original soil afforesting are achieved.

Description

technical field [0001] The invention discloses a method for afforesting heavily saline original soil in arid areas, in particular to a method for improving saline soil mixed with sand, planting annual halophytes, and cultivating halophytes and green manure plants in sequence for afforestation and soil improvement method. Background technique [0002] The saline-alkali soil is widely distributed in the arid region of western my country, and many cities are distributed in saline-alkali areas in the state of "oasis". Salinized soil is often an obstacle that people often encounter when transforming their living environment and implementing greening projects. The large area of ​​saline soil restricts the improvement of urban greening and overall environmental quality. Saline soil generally has the characteristics of high soil bulk density, viscosity, poor air permeability, low permeability coefficient, and strong capillary action. Excessive salinity in the soil can reduce the ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01B79/02
CPCY02A40/22Y02P60/40
Inventor 张科涂锦娜李艳红赵振勇田长彦
Owner 新疆中农宏远农业科技有限公司
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