|Table of Contents|

Effects of Phyto-Microbial Composite Remediation on Vegetation and Soil Properties of Opencast Coal Mine Dumps

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年11
Page:
81-90
Research Field:
Publishing date:

Info

Title:
Effects of Phyto-Microbial Composite Remediation on Vegetation and Soil Properties of Opencast Coal Mine Dumps
Author(s):
SHE Changchao1; BAO Yuying2; QU Hanting2; HUANG Yuejun1; MA Xiaodan2; XIAO Bing1
(1.Shenhua beidian Shengli Energy Co.Ltd.，Xilinhot，Inner Mongolia 026000;2.School of Life Sciences，Inner Mongolia University，Hohhot，Inner Mongolia 010021)
Keywords:
dump; plant diversity; soil physicochemical properties; soil enzyme activity; soil microorganisms
PACS:
-
DOI:
10.11937/bfyy.20223422
Abstract:
Taking the vegetation restoration experimental area of Shengli open-pit mine bare dumping site as the research object,the effects of different restoration modes on vegetation,soil factors and soil microorganisms in the dumpsite were studied by comparative analysis with the natural grassland outside the mine,in order to explore the influence of composite restoration technology on the open-pit coal mine dumpsite,find a suitable restoration model for the site,and provide a reference basis for the vegetation restoration of the dumpsite.The results showed that: 1) the coverage of the artificially restored plot was significantly improved compared with the bare dump,and the plants naturally restored in the bare dump were all annual herbs.The coverage,richness and Shannon wiener index of the monoculture of intermediate peashrub were higher.The abundance was higher in the monoculture of alfalfa,while the coverage,richness and Shannon wiener index were all lower.2) The water content,available potassium and carbon-nitrogen ratio of artificial restoration were between bare dump and natural grassland.pH and available phosphorus were showed as artificially restored > bare dump > natural grassland,and ammonium nitrogen was showed as artificial restoration < bare dump < natural grassland.Alfalfa would increase the soil carbon-nitrogen ratio.3) The enzyme activity of artificial restoration was between the bare dump and natural grassland,and the artificial restoration was beneficial to restoring the soil enzyme activities of the dump.Alkaline phosphatase and sucrase activities were higher in alfalfa plots.4) The number of artificially restored fungi was between bare dump and natural grassland.The monoculture of erect milkvetch was beneficial to the restoration of cultivable microorganisms in the dump.

References:

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Last Update: 2023-07-25