Global Spatial Indexing of the Human Impact on Al, Cu, Fe, and Zn Mobilization
详细信息    查看全文
  • 作者:Jason N. Rauch
  • 刊名:Environmental Science & Technology
  • 出版年:2010
  • 出版时间:August 1, 2010
  • 年:2010
  • 卷:44
  • 期:15
  • 页码:5728-5734
  • 全文大小:423K
  • 年卷期:v.44,no.15(August 1, 2010)
  • ISSN:1520-5851
文摘
With increasing consumption of material by human activity, the extent of human influence relative to nature in the mobilization of metals and other elements on Earth continues to grow. Recognizing people as modern geomorphic agents, I produced global data layers at 1° × 1° of human-mediated mass flows (coal combustion, biomass burning, and mining) and nature-mediated mass flows (net primary productivity, sea salt aerosol emission, and denudation to the oceans) for the industrial metals of aluminum, iron, copper, and zinc for the year 2000. The major mobilization processes are denudation (natural) and mining (anthropic), though net primary productivity for Zn and Cu and coal combustion for Al are nearly as significant. All flows are subsequently combined into an index representing human versus nature flow dominance. As the first maps of mobilization flows of metals widely used by modern technology, they reveal that 1−5% (depending upon the metal) of Earth’s land surface now has metal flow dominated by human activity.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700