...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Organic Carbon Burial in Lakes and Reservoirs of the Conterminous United States
【24h】

Organic Carbon Burial in Lakes and Reservoirs of the Conterminous United States

机译：美国本土湖泊和水库中的有机碳埋葬

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Organic carbon (OC) burial in lacustrine sediments represents an important sink in the global carbon cycle; however, large-scale OC burial rates are poorly constrained, primarily because of the sparseness of available data sets. Here we present an analysis of OC burial rates in water bodies of the conterminous U.S. (CONUS) that takes advantage of recently developed national-scale data sets on reservoir sedimentation rates, sediment OC concentrations, lake OC burial rates, and water body distributions. We relate these data to basin characteristics and land use in a geostatistical analysis to develop an empirical model of OC burial in water bodies of the CONUS. Our results indicate that CONUS water bodies sequester 20.8 (95% CI: 9.4-65.8) Tg C yr~(-1), and spatial patterns in OC burial are strongly influenced by water body type, size, and abundance; land use; and soil and vegetation characteristics in surrounding areas. Carbon burial is greatest in the central and southeastern regions of the CONUS, where cultivation and an abundance of small water bodies enhance accumulation of sediment and OC in aquatic environments.
机译：湖底沉积物中的有机碳（OC）埋葬是全球碳循环的重要汇。但是，大规模的OC埋葬率受到的限制很有限，这主要是由于可用数据集的稀疏性。在这里，我们利用最近开发的有关储层沉积速率，沉积物OC浓度，湖泊OC埋藏率和水体分布的国家级数据集，对美国本土（CONUS）水体中OC埋藏率进行了分析。我们将这些数据与盆地特征和土地利用联系起来，进行地统计学分析，以建立CONUS水体中OC埋藏的经验模型。我们的研究结果表明，CONUS水体的固存量为20.8（95％CI：9.4-65.8）Tg C yr〜（-1），而OC埋藏的空间格局受水体类型，大小和丰度的强烈影响。土地利用；以及周围地区的土壤和植被特征。碳埋藏在CONUS的中部和东南部地区最大，那里的种植和大量小水体促进了水生环境中沉积物和OC的积累。

著录项

  • 来源
    《Environmental Science & Technology》 |2015年第13期|7614-7622|共9页
  • 作者

    David W. Clow; Sarah M. Stackpoole; Kristine L. Verdin; David E. Butman; Zhiliang Zhu; David P. Krabbenhoft; Robert G. Striegl;

  • 作者单位

    U.S. Geological Survey, Colorado Water Science Center, Denver, Colorado 80225, United States;

    U.S. Geological Survey, National Research Program, Denver, Colorado 80225, United States;

    U.S. Geological Survey, Colorado Water Science Center, Denver, Colorado 80225, United States;

    U.S. Geological Survey, National Research Program, Boulder, Colorado 80303, United States,School of Environmental and Forest Sciences & Environmental Engineering, University of Washington, Seattle, Washington 98195, United States;

    U.S. Geological Survey, Reston, Virginia 20192, United States;

    U.S. Geological Survey, Wisconsin Water Science Center, Madison, Wisconsin 53562, United States;

    U.S. Geological Survey, National Research Program, Boulder, Colorado 80303, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号