A soil salinity control stick

Abstract

The invention relates to a soil salinity regulating rod. The regulating rod comprises a first PVC tube with a cylindrical upper portion, and a second PVC tube with a pointy lower portion; aqueous salt absorption units and adsorption slow-release units are sequentially or alternately laid outside-in along the tube walls inside both the first PVC tube and the second PVC tube; the aqueous salt absorption units are layered structures consisting of vermiculite and sepiolite fabric based on a volume ratio of 1:1 to 4; and the adsorption slow-release units are layered or cylindrical structures consisting of saturated zeolite and mushroom residue based on a volume ratio of 5 to 8:2 to 5. The regulating rod is able to absorb and fix the aqueous salt in soil removed from some other place; and improve the vent ability of clayed soil. Compared with the method of the prior art, the rise of salinity in soil removed from some other place is controlled, and the vent ability of clayed soil is maintained, thus the salt-leaching effect is more reasonable.

Description

technical field

[0001] The invention relates to the field of ecological environment, in particular to a soil salinity regulating rod, which is especially suitable for controlling the salt content in replacement soil after improvement of saline-alkali land in coastal areas. Background technique

[0002] The characteristics of saline-alkali land in coastal areas can be roughly summarized as: one large, three high, one low and one poor. Large evaporation, high groundwater table and high groundwater salinity are the root causes of coastal saline-alkali land, which eventually lead to high soil salinity, low nutrient content and poor soil structure. The saline-alkali soil in the coastal area is mostly clayey soil with poor air permeability, which makes the plant roots unable to breathe. At present, for the improvement of saline-alkali land, planting in coastal areas of my country mainly uses the method of salt drainage through hidden pipes and micro-area soil improvement to impro...

Examples

Embodiment Construction

[0017] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0018] The present invention provides a soil salinity regulating stick, specifically, see figure 1 , figure 2 , the control rod includes a cylindrical first PVC pipe 1 at the top and a second PVC pipe 2 with a pointed bottom. The inner diameter of the first PVC pipe 1 is 5-15 cm, and its cross section is circular, elliptical or polygonal. The overall shape of the second PVC pipe 2 is wedge-shaped or conical, which is convenient for insertion into the soil. The length of the regulating rod is 10-100 cm, which can be used for selection of root distribution layers of different plants such as herbs, shrubs, and trees. Preferably, the first PVC pipe 1 and the second PVC pipe 2 are provided with holes, so that salt can enter the interior of the first PVC pipe 1 and the second PVC pipe 2 for fixing.

[0019] Furthermore, ...

technical field

[0001] The invention relates to the field of ecological environment, in particular to a soil salinity regulating rod, which is especially suitable for controlling the salt content in replacement soil after improvement of saline-alkali land in coastal areas. Background technique

[0002] The characteristics of saline-alkali land in coastal areas can be roughly summarized as: one large, three high, one low and one poor. Large evaporation, high groundwater table and high groundwater salinity are the root causes of coastal saline-alkali land, which eventually lead to high soil salinity, low nutrient content and poor soil structure. The saline-alkali soil in the coastal area is mostly clayey soil with poor air permeability, which makes the plant roots unable to breathe. At present, for the improvement of saline-alkali land, planting in coastal areas of my country mainly uses the method of salt drainage through hidden pipes and micro-area soil improvement to impro...

Examples

Embodiment Construction

[0017] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0018] The present invention provides a soil salinity regulating stick, specifically, see figure 1 , figure 2 , the control rod includes a cylindrical first PVC pipe 1 at the top and a second PVC pipe 2 with a pointed bottom. The inner diameter of the first PVC pipe 1 is 5-15 cm, and its cross section is circular, elliptical or polygonal. The overall shape of the second PVC pipe 2 is wedge-shaped or conical, which is convenient for insertion into the soil. The length of the regulating rod is 10-100 cm, which can be used for selection of root distribution layers of different plants such as herbs, shrubs, and trees. Preferably, the first PVC pipe 1 and the second PVC pipe 2 are provided with holes, so that salt can enter the interior of the first PVC pipe 1 and the second PVC pipe 2 for fixing.

[0019] Furthermore, ...

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