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Applying a statistical method to streamflow reduction caused by underground mining for coal in the Kuye River basin 被引量:8

Applying a statistical method to streamflow reduction caused by underground mining for coal in the Kuye River basin
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摘要 Streamflow in the Kuye River basin has been sharply reduced by the effects of climate change and human activities.Since 1997,the intensification of coal mining has resulted in substantial reductions to streamflow alongside an ever-increasing demand for water.In this study,we present a derived statistical method,incorporating the Mann-Kendall and Pettitt method(MK-P) and the Soil and Water Assessment Tool(SWAT),and apply it to estimating the streamflow reductions caused by underground mining for coal in the Kuye River basin.The results show that underground mining is an important cause of the streamflow reductions observed since1997,being responsible for reductions of 21.15 mm/yr(~56%of the total) during 1997-2009.The results of the SWAT simulation were assessed by several performance criteria:Nash-Suttcliffe Efficiency(Nse),correlation coefficient(R^2),relative error(RE),P-factor and Pv-factor.The close match between the simulations and observed data supports the reasonability of our findings.We suggest that engineering strategies be adopted to limit streamflow loss into goafs via fractured zones in the coalfield.
出处 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2016年第12期1911-1920,共10页 中国科学(技术科学英文版)
基金 supported by the National Natural Science Foundation of China(Grant Nos.51309107,E090105,41130639 and 51179045) the Public Welfare Program(Grant Nos.201501022 and 201301068) the Fundamental Research Funds for the Central Public Welfare Research Institutes(Grant No.HKY-JBYW-2013-19) the Fundamental Research Funds for the Central Universities(Grant Nos.2014B34914 and 2015B28514)
关键词 underground mining for coal streamflow MK-P SWAT statistical method 窟野河流域 地下开采 煤炭开采 统计方法 年径流 应用 煤田采空区 人类活动
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