Coastal saline-alkali soil greening system based on landscaping waste utilization
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A landscaping and saline-alkali landscaping technology, which is applied in horticulture, application, culture medium, etc., can solve the problems of landscaping waste disposal, lack of soil resources, poor soil permeability, etc., to reduce maintenance water, reduce water evaporation, increase The effect of permeability
Pending Publication Date: 2021-05-25
天津生态城市政景观有限公司
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a coastal saline-alkali land greening system based on landscaping waste utilization; aiming at problems such as high groundwater level in coastal saline soil areas, poor soil permeability, large evaporation, and difficulty in plant survival, as well as foreign soil Lack of resources, high cost of gravel, etc., and at the same time face the practical difficulties of difficult disposal and utilization of landscaping waste
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Embodiment 1
[0076] A coastal saline-alkali land greening system based on the utilization of landscaping waste, including a covering layer 9, a soil layer to be improved 1, a permeable membrane layer 2, a shower layer 3, a hidden pipe salt drainage ditch 4, and a waterproofing layer arranged sequentially from top to bottom. Layer 8 and saline-alkali soil layer 5;
[0077] The covering layer material is leaves, dead bark or branch crushed material, and the covering thickness is 0.5-20cm;
[0078] Described shower layer 3 selects garden branch, trunk or tree root waste pulverized material for use;
[0079] The lower surface of the hidden pipe salt drainage ditch 4 is provided with a groove 41 protruding into the saline-alkali soil layer, and a hidden pipe 42 is arranged in the groove;
[0080] The underground pipe 42 is connected to the salt drainage well 6 in slope direction;
[0081] The salt drainage wells 6 are arranged at intervals in the soil body, and their depth extends into the sa...
Embodiment 2
[0091] Example 1 was repeated except that:
[0092] The thickness of the soil layer to be improved is 60cm;
[0093] The thickness of the shower layer is 35cm, and the length of the landscaping waste pulverization is 0.5cm;
[0094] The dark pipes are provided with one at intervals of 7 meters;
[0095] The salt drainage ditches are arranged at intervals on the upper layer of saline-alkali soil, with a spacing of 6 meters and a width and depth of 35cm.
Embodiment 3
[0097] Example 1 was repeated except that:
[0098] The thickness of the soil layer to be improved is 120cm;
[0099] The thickness of the shower layer is 40cm, and the length of the landscaping waste pulverization is 1.8cm;
[0100] The dark pipes are arranged at intervals of 8 meters;
[0101] The salt drainage ditches are arranged at intervals on the upper layer of saline-alkali soil, with a spacing of 7 meters and a width and depth of 40 cm.
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Abstract
The invention discloses a coastal saline-alkali soil greening system and method based on landscaping waste utilization. The coastal saline-alkali soil greening system comprises a covering layer, a to-be-improved soil layer, a permeable film layer, a spraying isolation layer, a concealed pipe salt drainage ditch, a salt drainage well, vent holes, a waterproof layer and a saline-alkali soil layer which are sequentially arranged from top to bottom; the covering layer is arranged on the earth surface near the roots of soil body plants; the to-be-improved soil layer is a mixture of undisturbed saline soil, decomposed landscaping branch and leaf crushed materials and other organic and inorganic fertilizers; the spraying isolation layer is made of garden branch, trunk or tree root waste crushed materials; and the concealed pipe salt discharging ditch is positioned below the spraying isolation layer. According to the system and the method, organic matter resources such as regional landscaping waste can be fully utilized, the salt leaching and discharging efficiency is enhanced, the underground water level is effectively reduced, salt return is prevented, surface evaporation is reduced, the soil fertility is increased, and the purpose of improving salinized soil is achieved. The damage to cultivated land resources can be reduced, the use of building material resources such as stone chips is saved, and the resource utilization of landscaping wastes is realized.
Description
technical field [0001] The invention belongs to the technical field of saline-alkali land greening, and in particular relates to a coastal saline-alkali land greening system based on utilization of landscaping waste. Background technique [0002] my country's coastal saline-alkali soil is widely distributed, with a total area of 500×10 4 hm 2 . Coastal saline soil has problems such as high groundwater level, poor soil permeability, and difficulty in leaching. Due to the large amount of evaporation, salt accumulates on the surface, causing the salt content of the soil to exceed the limit of plants, forming salt damage, and making it difficult for plants to survive. Over the years, with the development of economy and industry, saline-alkali areas have become a new frontier for economic development. In order to meet the needs of construction and development, various methods of controlling saline-alkali land have been widely used. Among them, the method of "planting with fo...
Claims
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Application Information
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