Novel method applicable to treatment of seasonal waterlogged coal-mining subsidence land

Abstract

The invention discloses a novel method applicable to treatment of a seasonal waterlogged coal-mining subsidence land. The method is characterized in that a water collection control project is utilized for comprehensively balancing the water and soil resources in a subsidence area, so as to solve the problem that unsmooth draining in the subsidence land leads to decrease of the quality of cultivated lands; the subsidence land is reconstructed into a quality land capable of draining in case of flooding and irrigating in case of drought. The method has the advantages that 1, a plurality of dispersed water collection pits / ponds are constructed to achieve the space regulation of the water resources as well as improving the irrigating and flood draining support capacity; 2, the water in the dispersedly constructed pits / ponds is able to improve the biodiversity of the treatment area; 3, the pits / ponds construction solves the problem of the earth resources in land reclamation of a bottomland in the subsidence area.

Description

technical field [0001] The invention relates to a new method for treating subsidence land during coal mining with seasonal waterlogging, which solves the problem that the quality of cultivated land decreases due to poor drainage in the subsidence land, and builds the subsidence land into a high-quality farmland that can be drained from floods and irrigated during drought. Background technique [0002] Coal is the most important energy source in our country, and 90% of it is mined through wells. Mining subsidence has caused a large amount of land damage. How to scientifically control subsidence and damaged land is an urgent requirement for the protection of cultivated land and environmental restoration of mining areas in my country. Due to the wide distribution of coal resources in my country, different natural conditions, large differences in resource endowments, and various forms of land damage, a unified governance model cannot be formed. It is necessary to develop suitabl...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new method suitable for the treatment of subsidence land during seasonal waterlogging and coal mining. The "water collection control project" is used to comprehensively balance the water and soil resources in the subsidence area, so as to solve the problem of poor drainage in the subsidence area and the decline in the quality of cultivated land. to build subsidence land into a high-quality farmland that can be drained from floods and irrigated from droughts

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