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Method for planting Suaeda salsa in saturated heavily-salinized soil of arid area

A technology for Suaeda salsa and heavy saline soil, which is applied in field preparation methods, botanical equipment and methods, plant cultivation, etc., can solve the problems of poor soil permeability, accumulation of reducing substances, insufficient content of available nutrients, etc. The effect of artificial and improving the ecological environment

Active Publication Date: 2016-03-02
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, several greening practices have proved that the general method of this research group (CN102388730A, a method for planting Suaeda saline by drip irrigation in heavy saline-alkali land in arid areas) failed to be successfully planted in saturated saline soil, because the middle and upper layers of the soil Frequent or intermittent water stagnation, poor soil permeability, more water and less gas, accumulation of reducing substances, and insufficient available nutrients; soil surface condenses and light yellow salt crusts, making the germination of halophyte seeds face extreme environments exceeding seawater concentrations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 (Hongshan Lakeside, Karamay University Town)

[0021] a. During the water cutoff period in autumn, according to the terrain, use mechanical land preparation, select the lowest depression as the drainage area, and level the rest of the land. The leveled green plot is 0.5m higher than the drainage area of ​​the depression, and the slope of the green plot points to the depression. The height difference in the green plot is 5cm;

[0022] Plastic hidden pipe and anti-filter layer laying:

[0023] b. Manually or by ditching machine, ditch along the slope direction in the green land after leveling, the ditch depth is 0.5m, the ditch width is 0.3m, and the spacing is 5m. , lay a PVC pipe with a diameter of 125mm on the surface of the gravel with the holes facing upward, then cover the PVC pipe with gravel with a depth of 10cm and cover it with soil to level. Before laying the PVC pipe, punch holes on the upper surface of the PVC pipe 60 pcs / m, hole diameter 5mm, and...

Embodiment 2

[0030] Example 2 (Kelamayi Forest Park Wetland)

[0031] a. During the water cutoff period in autumn, according to the terrain, use mechanical land preparation, select the lowest depression as the drainage area, and level the rest of the land. The green plot after leveling is 0.6m higher than the drainage area of ​​the depression, and the slope of the green plot points to the depression. The height difference in the green plot is 4cm;

[0032] Plastic hidden pipe and anti-filter layer laying:

[0033] b. Manually or by ditching machine, ditch along the slope direction in the green land after leveling, the ditch depth is 0.5m, the ditch width is 0.3m, and the spacing is 5m. , lay a PVC pipe with a diameter of 125mm on the surface of the gravel with the holes facing upward, then cover the PVC pipe with gravel with a depth of 10cm and cover it with soil to level. Before laying the PVC pipe, punch holes on the upper surface of the PVC pipe 60 pcs / m, hole diameter 5mm, and then w...

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PUM

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Abstract

The invention relates to a method for planting Suaeda salsa in saturated heavily-salinized soil of an arid area, wherein a greening area and a drainage area are established according to terrains at first; plastic concealed conduits and an inverted filtering layer are laid and embedded in the greening area in order to reduce soil moisture and soil salinity; a drip irrigation zone is disposed; a shallow trench is excavated; grass charcoal soil is covered to provide a suitable matrix and a micro terrain environment for seed germination of the Suaeda salsa; and an intermittent low-salt environment is provided form germination of the Suaeda salsa and growth in a seedling period through drip irrigation. During a vegetative growth period, a ''Venturi'' drip fertigation device is used to apply water-soluble acid fertilizers, so that partial soil alkalinity is neutralized; available nutrients are provided; a breeding cycle can be completed in one year; and then the saturated salinized soil can be greened in a wild state in each later year. According to the method, a bald and heavily-salinized landscape with soil water saturation and ground surface salt encrustation can be changed; the ecologic environment is improved; and basically no reinvestment or maintenance is required at a later stage after one time of greening planting in order to realize natural greening. The method provides a technical model for the sustainable greening and beautification in an extreme environment of the arid area.

Description

technical field [0001] The invention provides a method for planting Suaeda salsa on saturated heavy saline soil in arid areas, relates to a method for greening saturated saline soil in arid areas by combining halophytes, drainage engineering, humus and drip irrigation, and belongs to the field of ecological planting. Background technique [0002] In an oasis in arid areas, water and salt are concentrated in low-lying places. These low-lying places are often located beside roads, parks, reservoirs, and edges of lakes. For landscaping, the selection and cultivation management of saline-alkali land greening materials are very important. Research on suitable plants and planting techniques is urgently needed. [0003] It is the wet halophytes that can be competent for the greening of saline soil. Suaeda salsa is resistant to salinity and barrenness, and can grow normally in a variety of environments when fresh or salt water is provided (salt content is less than 3.5% of seawater...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01B79/02
CPCA01B79/02A01G22/00
Inventor 涂锦娜李艳红张科杨朋朋吴国华买文选张福海李中邵田长彦
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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