Global terrestrial biogeochemistry: Perturbations, interactions, and time scales

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Global biogeochemical processes are being perturbed by human activity, principally that which is associated with industrial activity and expansion of urban and agricultural complexes. Perturbations have manifested themselves at least since the beginning of the 19th Century, and include emissions of CO{sub 2} and other pollutants from fossil fuel combustion, agricultural emissions of reactive nitrogen, and direct disruption of ecosystem function through land conversion. These perturbations yield local impacts, but there are also global consequences that are the sum of local-scale influences. Several approaches to understanding the global-scale implications of chemical perturbations to the Earth system are discussed. The lifetime ... continued below

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301 p.

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Braswell, B. H,. Jr. December 1, 1996.

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Description

Global biogeochemical processes are being perturbed by human activity, principally that which is associated with industrial activity and expansion of urban and agricultural complexes. Perturbations have manifested themselves at least since the beginning of the 19th Century, and include emissions of CO{sub 2} and other pollutants from fossil fuel combustion, agricultural emissions of reactive nitrogen, and direct disruption of ecosystem function through land conversion. These perturbations yield local impacts, but there are also global consequences that are the sum of local-scale influences. Several approaches to understanding the global-scale implications of chemical perturbations to the Earth system are discussed. The lifetime of anthropogenic CO{sub 2} in the atmosphere is an important concept for understanding the current and future commitment to an altered atmospheric heat budget. The importance of the terrestrial biogeochemistry relative to the lifetime of excess CO{sub 2} is demonstrated using dynamic, aggregated models of the global carbon cycle.

Physical Description

301 p.

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OSTI as DE97053349

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  • Other Information: TH: Thesis (Ph.D.)

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  • Other: DE97053349
  • Report No.: DOE/OR/00033--T703
  • Grant Number: AC05-76OR00033
  • DOI: 10.2172/527485 | External Link
  • Office of Scientific & Technical Information Report Number: 527485
  • Archival Resource Key: ark:/67531/metadc690019

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 1, 1996

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Aug. 8, 2016, 8:33 p.m.

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Braswell, B. H,. Jr. Global terrestrial biogeochemistry: Perturbations, interactions, and time scales, report, December 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc690019/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.