Method for reclaiming strip mine dump by using grassland native plant seed bank

A native plant and seed bank technology, which is applied in the field of reclamation of open-pit mine dumps using grassland native plant seed banks, can solve problems such as low environmental benefits, few ecological restoration of grassland seed banks, and no concept of natural integration. , to achieve the effect of reducing damage and saving use

Active Publication Date: 2022-04-12
CHNA ENERGY INVESTMENT CORP LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] To sum up, most of the reclamation of dumps in the existing technology only focuses on the restoration of soil functions, and has not yet formed the concept of integration with nature, and few use local grassland seed banks for ecological restoration
At the same time, few patents consider the full cycle of restoration when carrying out ecological restoration, and the environmental benefits are not outstanding

Method used

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  • Method for reclaiming strip mine dump by using grassland native plant seed bank
  • Method for reclaiming strip mine dump by using grassland native plant seed bank
  • Method for reclaiming strip mine dump by using grassland native plant seed bank

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Embodiment

[0034] The invention discloses a method for reclamation of an open-pit mine dump by using a grassland native plant seed bank, comprising:

[0035] S1: Ecological survey of the grassland around the open-pit mine; figure 2 As shown, the specific process is as follows:

[0036] S11: Arrange one along the 8 directions of north (N), northeast (N), east (EN), southeast (ES), south (S), southwest (WS), west (W) and northwest (WN) of the open-pit mine 4 km survey transect 1, a central measuring point 2 is set every 400 meters on the survey transect 1, and an auxiliary measuring point 3 is set at 200 meters on the left and right sides of the central measuring point 2, and the two auxiliary measuring points The connecting line of 3 is perpendicular to its corresponding survey transect 1; figure 2 Only the central measuring point 2 and auxiliary measuring point 3 in the south (S) direction are shown;

[0037] S12: Each central measuring point 2 and auxiliary measuring point 3 conduc...

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Abstract

The invention discloses a method for reclaiming a strip mine dump by using a grassland native plant seed bank. The method comprises the following steps: performing ecological investigation on grassland around a strip mine; sampling a protophyte seed bank; repairing sampling traces; repairing the soil dump of the strip mine; and maintaining the ecological reclamation area. According to the method, the local ecological condition of the area is scientifically found out, the meadow of the grassland on the periphery of the strip mine dump is used as the seed bank, species in the reclamation area and the grassland on the periphery are matched to the maximum extent, and meanwhile the problem that many species can only grow through a natural seed bank and cannot be artificially cultivated is solved; according to the method, after the seed bank is taken from the grassland meadow, the original position is simply and manually intervened and repaired, and the grassland vegetation coverage is quickly recovered by using natural restoring force; according to the method, when the grassland seed bank is utilized to reclaim the dumping site, the natural restoring force is fully considered, the use of the soil seed bank is saved to the maximum extent, and then the damage to surrounding grassland is reduced.

Description

technical field [0001] The invention relates to the field of mine ecological reclamation, in particular to a method for reclamation of open-pit mine dumps by utilizing grassland native plant seed bank. Background technique [0002] The ecological restoration of open-pit coal mine dumps is the core issue. Based on the combination of natural solutions and appropriate artificial measures, the integration of dumps and nature is the ultimate goal of mine ecological restoration. Vegetation is the most intuitive ecological element. Native vegetation has been selected through a long history to form a stable ecosystem. Therefore, native plant species used for mine ecological reclamation are more adaptable to local climate conditions. [0003] Chinese patent (CN 110527516A) discloses a soil reconstitution method and a soil improvement method. Aiming at the scarcity of topsoil in waste dumps in the grassland area of ​​Inner Mongolia, it provides a mixture of topsoil, rock-soil strippin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G20/00A01B79/02
Inventor 李全生王菲宋子恒韩兴白璐佘长超陈树召
Owner CHNA ENERGY INVESTMENT CORP LTD
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