Planting land based on improvement of tidal-flat saline-alkali soil and improvement method of tidal-flat saline-alkali soil

A technology for saline-alkali land and tidal flat, applied in the field of soil remediation, can solve the problems of returning salt, affecting the improvement effect of tidal flat saline-alkali land, etc., and achieves the effect of good adaptability and practicability

Inactive Publication Date: 2019-08-16
上海科苑景观工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, tidal flat saline-alkali land is located next to rivers, lakes or sea water, and soluble tidal flat saline-alkali substances can continuously erode the soil layer under the action of scouring and infiltration of rivers and the scouring and impregnation of lakes and sea water, resulting in the use of the above-mentioned existing technical means. Salt return phenomenon occurs in tidal flat saline-alkali land or tidal flat saline-alkali land under improvement, which seriously affects the improvement effect of tidal flat saline-alkali land. There are improvements in the existing technology

Method used

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  • Planting land based on improvement of tidal-flat saline-alkali soil and improvement method of tidal-flat saline-alkali soil
  • Planting land based on improvement of tidal-flat saline-alkali soil and improvement method of tidal-flat saline-alkali soil
  • Planting land based on improvement of tidal-flat saline-alkali soil and improvement method of tidal-flat saline-alkali soil

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Effect test

Embodiment 1

[0039] Such as figure 1 As shown, a planting site based on improved tidal flat saline-alkali land includes plant planting area 1 and salt intrusion area 2, plant planting area 1 is improved from tidal flat saline-alkali land, and salt intrusion area 2 is located between plant planting area 1 and the external environment , and the salt intrusion area 2 exchanges water containing soluble salts between the plant planting area 1 and the external environment (which can be water bodies such as rivers, lakes, and sea water). Between the plant planting area 1 and the salt intrusion area 2, a salt barrier layer 4 and a salt filter layer 5 are interposed, and the two cooperate to block the salt in the external environment from entering the plant planting area 1, and at the same time, the salt and alkali in the plant planting area 1 Parts can be discharged outwards, so as to realize the purpose of improving saline-alkali land in tidal flats as planting land and improving the improvement ...

Embodiment 2

[0047] combine figure 1 and image 3 As shown, a method for improving tidal flat saline-alkali land includes the following steps. First, excavate and construct a salt barrier layer 4 at the deep soil on one side of the plant planting area 1, and simultaneously complete the laying of the salt filter layer 5, and then The salt intrusion area 2 is poured outside the salt intrusion area 2, and the erosion-resistant protective layer 3 is set outside the salt intrusion area 2, that is, a masonry protective layer (permeable brick) or a poured concrete protective layer (green concrete) is laid on the outer side of the salt intrusion area 2 ), and at the same time form a crack directly in contact with the external environment on the outer surface, and then pour a mixed filling of distiller's grains and peat with a ratio of 1:1 into the salt barrier layer 4 by pouring, so as to complete the basic structure of tidal flat saline-alkali land improvement And the construction work of the sa...

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Abstract

The invention discloses a planting land based on improvement of tidal-flat saline-alkali soil and an improvement method of the tidal-flat saline-alkali soil, and relates to the technical field of soilrestoration. A salt separation layer and a salt filtering layer are arranged between a plant growing area and a salt intrusion area, salt in the external environment is separated out, internal salt and alkali are discharged through the salt filtering layer, salt washing and discharging work is completed by irrigation and washing, then soil property of the plant growing area is further balanced through combination of soil property regulation and saline-alkali-resistant plant planting, and finally, the soil property of the improved planting land is kept by soil turning and preparation work, sothat the improvement and restoration effect of the tidal-flat saline-alkali soil is improved and the improvement and restoration time is shortened.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a planting site based on tidal flat saline-alkali land improvement and an improvement method thereof. Background technique [0002] Tidal flat saline-alkali land (also known as tidal flat, saline-alkali soil, saline-alkali soil) is formed under certain natural conditions. Redistribute and make various soluble salts and alkalis concentrate in the soft soil layer in specific areas. [0003] Tidal flat saline-alkali soil is a general term for saline soil and alkaline soil. Saline soil mainly refers to salinized soil containing high chloride or sulfate, the soil is alkaline, but the pH value is not necessarily high; alkaline soil refers to the soil containing carbonate or heavy phosphate, the soil is alkaline , and the pH value is higher. Saline-alkali soil in tidal flats has low organic matter content, low soil fertility, poor physical and chemical properties, and many a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00A01G9/02
CPCA01B79/00A01G9/02
Inventor 郑东风
Owner 上海科苑景观工程设计有限公司
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