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Reconstruction and restoration method for high-water-table and unsteady sunken coal-mining-induced subsidence shallow-water wetland ecosystem

A technology of coal mining subsidence and high diving level, applied in the fields of botany equipment and methods, climate change adaptation, horticulture, etc. The effect of land use efficiency

Active Publication Date: 2014-03-05
ANHUI UNIVERSITY
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Problems solved by technology

Most of these coal mining subsidence wetlands are formed by the subsidence of the original farmland. They are still in the early stage of unsteady subsidence, and the water depth is mostly within 3 meters. The land reclamation is difficult and the utilization rate is low. The aquatic plant community formed has a single species. Water peanuts and water candles are the dominant species, which cannot play the function of the lake ecosystem

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  • Reconstruction and restoration method for high-water-table and unsteady sunken coal-mining-induced subsidence shallow-water wetland ecosystem

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[0030] Such as figure 1 As shown, the typical species of aquatic plant communities in shallow lakes were used as tool species to construct aquatic plant communities in coal mining subsidence shallow wetlands in Huainan City, and to carry out the construction project of dynamic subsidence wetland ecosystems to give full play to the functions of aquatic ecosystems.

[0031] (1) The area of ​​the project area is 4ha, of which civil works: dam foundation length 4*200m, height 1m, width 1m; surrounding canals length 4*200m, depth 0.5m, width 1m; water storage capacity: 1m deep, area 4ha, water storage Volume 40000m 3 .

[0032] (2) Colonized plants: emergent plants, 5m wide, 4*200m long, and 4000m in area 2 ;Floating leaf plant, area 5m, length 4*200m, area 4000m 2 , small and large floating leaf plants each account for 50%; submerged plants, area 190m*190m 2 .

[0033] The specific implementation steps include:

[0034] 1. Soil management in project area:

[0035] Before pl...

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Abstract

The invention discloses a reconstruction and restoration method for a high-water-table and unsteady sunken coal-mining-induced subsidence shallow-water wetland ecosystem. The method includes: firstly, adding water to soil in an engineering area to be reconstructed to soak the soil and ensure the soil to be moist; secondly, selecting vallisneria as a main submerged plant, fully stirring vallisneria seeds and plant ash before the middle of March every year according to a proportion of 1:1, and then uniformly sowing the seeds in the whole engineering area according to the standard of 1kg of seeds per mu; thirdly, preparing emerged plant communities around the edge of the engineering area, and preparing floating plant communities and other submerged plant communities in the whole engineering area in patches. The ecological environment of restoring subsidence wetland by the aquatic plant communities is formed, ecological functions of lakes of the subsidence wetland are given into play, and land utilization efficiency of the subsidence wetland can be improved.

Description

technical field [0001] The invention relates to an ecological engineering technology, in particular to a method for reconstructing and repairing a shallow water wetland ecosystem with high water level and unsteady coal mining subsidence. Background technique [0002] The Lianghuai mining area is an important energy base in East China and one of the 14 large coal bases planned by the state. Lianghuai Coal Mine mainly includes Huaibei Mining Area and Huainan Coalfield. The Huainan and Huaibei coal fields in the Lianghuai mining area are mainly Permian coal measures, with a large number of coal seams, large thickness, and relatively stable occurrence. Most of the coal resources in the province are concentrated, and the retained resources / reserves of coal account for about Coal retains 99.0% of the resources / reserves. [0003] The Huainan coalfield is the coalfield with the largest remaining coal resource reserves in eastern my country, and it is also a coal city with serious ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01K61/00
CPCY02A40/22Y02A40/81
Inventor 周忠泽周立志张玉云王超王兰郑鑫
Owner ANHUI UNIVERSITY
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