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文章摘要

淮南潘一矿采煤沉陷复垦区土壤肥力时空变化特征

Temporal and Spatial Variation Characteristics of Soil Fertility in Coal Mining Subsidence Reclamation Area in Huainan Panyi Mine

DOI：

中文关键词: 土壤肥力采煤沉陷复垦区煤矸石淮南潘一矿

英文关键词: Soil fertility Mining subsidencereclamation area Coal gangue Huainan Panyi mine

基金项目:国家重点研发计划基金资助项目（2016YFC0501105）；淮南矿业直管基金资助项目［HNKY-JTJS-2018（162）］

作者	单位
陈永春	煤矿生态环境保护国家工程实验室；平安煤炭开采工程技术研究院有限责任公司
赵萍	合肥工业大学资源与环境工程学院
郑刘根	安徽大学资源与环境工程学院，安徽省矿山生态修复工程实验室
姜春露	安徽大学资源与环境工程学院，安徽省矿山生态修复工程实验室
杨思楠	安徽大学资源与环境工程学院，安徽省矿山生态修复工程实验室

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中文摘要:

通过采集淮南潘一矿采煤沉陷复垦区不同深度覆土样品，检测土壤中有机质、总氮、速效磷、速效钾等指标，分析采煤沉陷复垦区土壤肥力时空变化特征。结果表明：复垦9年，0 cm～20 cm、20 cm～40 cm、40 cm～60 cm覆土厚度土壤中有机质增长率分别为6168%、6944%、5568%，总氮增长率分别为7160%、6786%、5795%，速效磷增长率分别为7256%、7532%、5209%，速效钾增长率分别为7296%、6877%、4751%。复垦区土壤肥力有机质处于Ⅳ级较缺乏水平，总氮处于Ⅱ级和Ⅰ级，较丰富水平及以上，速效磷处于Ⅲ级，中等水平，速效钾处于Ⅱ级，较丰富水平。

英文摘要:

The temporal and spatial variation characteristics of soil fertility was analyzed by detecting organic matter, total nitrogen, available phosphorus, available potassium in the samples collected from different depths of reclamation soil in Huainan Panyi coal mining subsidence area. The results showed that after 9 years of reclamation, the growth rate of organic matter in the depths of 0 cm～20 cm, 20 cm～40 cm, and 40 cm～60 cm of covering soil were 61.68%, 69.44%, and 55.68%, respectively, the growth rate of total nitrogen were 71.60%, 67.86%, 57.95%, respectively, the growth rate of available phosphorus were 72.56%, 75.32%, 52.09%, respectively, and the growth rate of available potassium were 72.96%, 68.77%, 47.51%, respectively. Organic matter of soil fertility in the reclamation area was in grade Ⅳ which was relatively deficient level, total nitrogen was in grade Ⅱ and Ⅰ which was relatively rich or above level. Available phosphorus was in grade Ⅲ, medium level, and available potassium was in grade Ⅱ, rich level.

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