Reclamation method for sunk paddy field caused by mining in mountainous regions
A technology of coal mining subsidence and paddy field, which is applied in the fields of land preparation methods, soil lifting machinery, agricultural machinery and implements, etc., can solve the problems of insufficient topsoil protection and other problems, and achieve restoration and improvement of farmland biological environment, restoration and utilization, and improvement of applicability. and operability effects
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[0021] The present invention proposes a specific embodiment of a method for reclamation of cracks in paddy field subsidence caused by coal mining in mountainous areas in Southwest China. The detailed description is as follows in conjunction with the accompanying drawings:
[0022] The present invention first carries out on-the-spot survey of subsidence floor leakage paddy field before carrying out reclamation. Determine the location and range of cracks that cause water leakage in paddy fields, investigate the environment of the land where the cracks are located, design the topsoil stacking position, calculate the amount of water-retaining materials and soil backfill, prepare mud, and carry out reclamation and repair. The embodiment of the method for reclamation of cracks in paddy fields subsided by coal mining in southwest mountainous areas of the present invention is carried out in late winter or early spring 1-3 months before rice planting, and then biological means are used ...
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