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首页> 外文会议>The 6th international conference on mining science amp; technology (ICMST2009) >Distribution characteristics of nitrogen and phosphorus in mining induced subsidence wetland in Panbei coal mine, China
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Distribution characteristics of nitrogen and phosphorus in mining induced subsidence wetland in Panbei coal mine, China

机译：盘北煤矿开采沉陷湿地中氮磷分布特征

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摘要

Coal mining subsidence forms anthropogenic wetland. Nutrients in cropland around the wetland will be transferred into catchment along the slope of the coal mining wetland especially by the water washing in raining season. On the other hand, the washed nutrients from the cropland will be accumulated in the sediments of the catchment and eutrophicate the water body of catchment potentially. Nitrogen and phosphorus were selected as the biogeochemical indicators to address the environment effect of coal mining subsidence wetland in Panbei Coal Mine, Huainan, China. Nine water samples, nine sediment samples in the catchment, and twenty-seven topsoil samples around the catchment were collected. Contents of total nitrogen (TN), NO3-N, NH4-N, total phosphorus (TP) and available phosphorus of water, sediment and topsoil in coal mining subsidence wetland were measured. Distribution characteristics of nitrogen and phosphorus contents in water, sediments and topsoil in coal mining subsidence wetland indicated that their contents in water were relative lower, and highest contents in sediments were found, which reflected the nutrient absorption and accumulation in the sediment. In Panbei coal mining, the characteristics of distributions of nitrogen and phosphorus contents in topsoil of coal mining wetland generally decreased along the slope from flooded area to top of the basin. The phenomena indicated that the gradient formed by coal underground mining led to the nutrient losses in cropland and nutrient accumulaiton in sediments of catchment.
机译：煤矿开采沉陷形成了人为湿地。湿地周围农田的养分将沿着采煤湿地的坡度转移到集水区，尤其是在雨季用水冲洗时。另一方面，来自农田的洗涤养分将积聚在集水区的沉积物中，并潜在富营养化集水区的水体。选择氮和磷作为生物地球化学指标，以解决淮南市潘北煤矿采煤沉陷湿地的环境影响。收集了九个水样，流域中的九个沉积物样品和流域周围的二十七个表土样品。测定了采煤沉陷湿地中总氮（TN），NO3-N，NH4-N，总磷（TP）以及水，沉积物和表层土壤有效磷的含量。采煤沉陷湿地中水，沉积物和表层土壤中氮，磷含量的分布特征表明，水中的氮，磷含量相对较低，沉积物中的氮和磷含量最高，反映了沉积物中养分的吸收和积累。在盘北采煤中，采煤湿地表土中氮，磷含量的分布特征普遍沿从水淹区到盆地顶部的坡度减小。这种现象表明，地下煤矿开采形成的梯度导致农田中的养分流失和集水区沉积物中的养分积累。

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  • 来源
  • 会议地点 Xuzhou(CN);Xuzhou(CN)
  • 作者

    Meng Qing-jun; Feng Qi-yan; Wu Qing-qing; Meng Lei; Cao Zhi-yang;

  • 作者单位

    Jiangsu Key Laboratory of Resources and Environmental Information Engineering, Xuzhou 221116, China School of Environmental Science Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;

    Jiangsu Key Laboratory of Resources and Environmental Information Engineering, Xuzhou 221116, China School of Environmental Science Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;

    Jiangsu Key Laboratory of Resources and Environmental Information Engineering, Xuzhou 221116, China School of Environmental Science Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;

    Jiangsu Key Laboratory of Resources and Environmental Information Engineering, Xuzhou 221116, China School of Environmental Science Spatial I;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 矿业工程;
  • 关键词

    nitrogen; phosphorus; distribution characteristics; coal mining subsidence wetland;

    机译：氮;磷;分布特征;采煤沉陷湿地;

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