A rapid vegetation construction method in sea reclamation area
A construction method and vegetation technology, applied in land preparation methods, climate change adaptation, soil improvement machinery, etc., can solve problems such as violation of the concept of sustainable development, lack of technical parameters, and restrictions on promotion and application, and avoid land resources and ecological balance. The effect of increasing the penetration rate and accelerating the aging process
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Embodiment 1
[0019] The dredger reclamation in Tianjin Binhai New Area has high slime content, strong plasticity, high salt content, and low permeability coefficient. In early November, blind pipes were laid on the 90cm soil layer in the green area of the dredger reclamation area as required, and the concealed pipe spacing was set to 2 -3m; after freezing in winter and thawing in spring, add calcium carbide slag and sea sand to the dredging sea mud, among which dredging sea mud: sea sand: calcium carbide slag (volume ratio) = 0.55:0.40:0.05, and after mixing Add 5% of its volume to garden litter fragments and mix them evenly; after mixing, use 3-6g / L salt water to irrigate and desalinate, and then fill the sea mud with 0-60cm soil salt content after mixing When it drops below 6g / kg, use 1-3g / L brackish water for irrigation desalination. When the 0-60cm soil salinity drops below 3g / kg, use fresh water to irrigate once and sow alfalfa and sesame seeds in April ( Salt-tolerant pasture) for b...
Embodiment 2
[0028] The demonstration project covers an area of 10,000 square meters, the initial salt content is 30.6g / kg, and the buried depth of the blind pipe is 135cm. The rest of the improvement process is the same as in Example 1. Planting Suaeda salsa (saline vegetation) for biological improvement, and then planting Albizia , Robinia pseudoacacia, Chinese locust tree, Luan tree, Jin Baiwa, Thousand head chrysanthemum, Torch tree, Hibiscus, Amorpha pseudoacacia, Pteris sylvestris, Echinochloa chinensis, Golden leaf acanthus, Yingchun, alfalfa and other garden plants, the survival rate of plants is over 98% Growing well.
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