Block-shaped alien earth planting layer and method for planting trees by using planting layer
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A blocky, foreign soil technology, applied in the field of saline-alkali landscaping, can solve problems such as control methods that have not yet been seen, and achieve the effect of avoiding salt intrusion, restoring and rebuilding ecological green space, and good plant growth
Active Publication Date: 2016-02-24
SDIC XINJIANG LUOBUPO POTASH CO LTD +1
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Problems solved by technology
In large-scale guest soil engineering, the control of salt intrusion and the rise of groundwater level are two extremely key technical priorities, but so far, no effective control methods have been seen
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Embodiment 1
[0035] Embodiment 1 A kind of block shape guest soil planting layer
[0036] A block-shaped guest soil planting layer, such as Figure 1-4 As shown, it specifically includes the wind-generated fine sand layer 1 in the upper layer, the large particle layer 3 in the lower layer, and the grid cloth 4 between the upper and lower layers;
[0037] Wherein, the bottom of the large particle layer is a V-shaped structure;
[0038] On the two slopes at the bottom of the large particle layer, several filter pipes 5 are laid in parallel along the slope, and the filter pipes on the two slopes meet at the bottom of the slope;
[0039] Geotextile 2 is also coated around the block-shaped guest soil planting layer and at the bottom of the large particle layer;
[0040] There is also a blind ditch 6 perpendicular to the section of the planting layer at the bottom of the slope of the large particle layer covered with geotextile.
[0041] Wherein, the thickness of the aeolian fine sand layer i...
Embodiment 2
[0049] Embodiment 2 A method of planting trees utilizing the above-mentioned block-like guest soil planting layer
[0050] A kind of method utilizing above-mentioned planting layer to plant trees, comprises the steps:
[0051] 1) Strip the salt crust of the saline-alkali land to a depth of at least 150cm to form a block-shaped guest soil planting area;
[0052] 2) Embedding the above-mentioned block-shaped foreign soil planting layer in the block-shaped guest soil planting area;
[0053] 3) Plant plants in the eolian fine sand layer, irrigate, and regularly observe the soil salinity;
[0054] 4) When it is observed that the salt content of the soil continues to rise, increase the amount of irrigation water and irrigation time, use the water in the soil to carry the salt through the filter tube and then discharge it into the blind ditch, so as to realize the flow cycle of soil water to groundwater.
[0055] Wherein, the plants are Elaeoptera, Populus euphratica, Haloxylon, Ta...
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Abstract
The present invention relates to a block-shaped alien earth planting layer and a method for planting trees by using the planting layer. The block-shaped alien earth planting layer comprises an upper wind-formed silty sand layer, a lower large particle layer and a middle mesh cloth positioned between the upper wind-formed silty sand layer and the lower large particle layer, wherein the bottom of the large particle layer is a V-shaped structure; a plurality of filter pipes are paved in parallel along surfaces of two slopes at the bottom of the large particle layer, and the filter pipes on the surfaces of the two slopes intersect at the lowest positions of the bottoms of the slopes; geotechnical cloth furtehr covers the circumference of the block-shaped alien earth planting layer and the bottom of the large particle layer; and a blind channel perpendicular to the cross section of the planting layer is further arranged at the lowest positions of the bottoms of the slopes of the large particle layer with the geotechnical cloth. After the block-shaped alien earth planting layer provided by the present invention is used on a saline and alkali land, while salinity in the earth is controlled effectively, the circumstances of surrounding salinity evasion and rising of an underground water level in the alien earth region can be avoided. The plants that are planted in the modified earth grow soundly, thereby facilitating local vegetation restoration and ecological greenland reconstruction.
Description
technical field [0001] The invention relates to a block-shaped alien soil planting layer and a tree planting method using the planting layer, and belongs to the technical field of saline-alkali land greening. Background technique [0002] There are large areas of saline-alkali wasteland not suitable for direct planting in my country. In recent years, due to the demand for resource development, ecological construction should be carried out in saline-alkali wasteland to restore local vegetation and rebuild ecological green space. In many severe saline-alkaline wastelands, due to the high groundwater level, strong evaporation causes the salt to accumulate on the surface, forming a very hard salt crust with a salt content of more than 60%. It is impossible to directly plant plants. A means of improving the soil for plant cultivation. In large-scale guest soil engineering, the control of salt intrusion and groundwater level rise are two extremely key technical priorities, but s...
Claims
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