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To understand the global oceanic carbon budget and related climate change, exact measurements of organic carbon flux in all oceans environments, especially the continental margins, are crucial. In fact, data have been available for some time on organic carbon sources, pathways, and burial for most of the world's oceans, with the notable exception of the Arctic. With this book, the editors remedy this gap in knowledge, presenting an overview of organic-carbon sources, pathways, and burial of the circum-Arctic continental margin and deep-sea areas. Data from each Arctic shelf and basin are collated, presented in common and parallel formats, and related to the global carbon cycle. The book is suitable for lecturers, graduate students as well as scientists interested in the organic-carbon-cycle and Arctic Ocean (paleo-)environment.
The flux,preservation,and accumulation of organic carbon in marine systems are controlled by various mechanisms including primary p- duction of the surface water,supply of terrigenous organic matter from the surrounding continents, biogeochemical processes in the water column and at the seafloor, and sedimentation rate. For the world s oceans,phytoplankton productivity is by far the largest organic carbon 9 source,estimated to be about 30 to 50 Gt (10 tonnes) per year (Berger et al. 1989; Hedges and Keil 1995). By comparison, rivers contribute 1 about 0. 15 to 0. 23 Gt y of particulate organic carbon (Ittekkot 1988; 1 Hedges et al. 1997). On average,only about 0. 1 0. 2 Gt y of the organic carbon supplied to the world s oceans has been buried in Holocene sediments, with perhaps 85 90% of that being deposited in deltaic, shelf and upper slope sediments (Romankevich 1984; Berner 1989; Hedges and Keil 1995). To refine the global ocean carbon budget in general and,specifically,to quantify organic carbon burial because it is so important for climatic change, we need detailed measurements of the organic carbon flux in all ocean environments, especially for c- tinental margins (e. g. ,Liu et al. ,2000). With the notable exception of the Arctic Ocean, data have been available for some time on organic carbon sources, pathways and burial in a variety of ocean envir- ments.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
The flux,preservation,and accumulation of organic carbon in marine systems are controlled by various mechanisms including primary p- duction of the surface water,supply of terrigenous organic matter from the surrounding continents, biogeochemical processes in the water column and at the seafloor, and sedimentation rate. For the world s oceans,phytoplankton productivity is by far the largest organic carbon 9 source,estimated to be about 30 to 50 Gt (10 tonnes) per year (Berger et al. 1989; Hedges and Keil 1995). By comparison, rivers contribute 1 about 0. 15 to 0. 23 Gt y of particulate organic carbon (Ittekkot 1988; 1 Hedges et al. 1997). On average,only about 0. 1 0. 2 Gt y of the organic carbon supplied to the world s oceans has been buried in Holocene sediments, with perhaps 85 90% of that being deposited in deltaic, shelf and upper slope sediments (Romankevich 1984; Berner 1989; Hedges and Keil 1995). To refine the global ocean carbon budget in general and,specifically,to quantify organic carbon burial because it is so important for climatic change, we need detailed measurements of the organic carbon flux in all ocean environments, especially for c- tinental margins (e. g. ,Liu et al. ,2000). With the notable exception of the Arctic Ocean, data have been available for some time on organic carbon sources, pathways and burial in a variety of ocean envir- ments.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
From the reviews:
"The book is an extraordinary compilation of interesting information and a succession of important interpretations about the production, delivery, degradation, and burial of organic matter in the world's only polar ocean. ... The three features of the book that make it particularly special are its content, its presentation, and its timeliness. ... Because of the way that Stein and Macdonald have so effectively integrated and organized a wealth of information about the Arctic, many kinds of scientists would benefit from it." (Phillip A. Meyers, Polar Record, Vol. 41 (3), 2005)
"The book is an extraordinary compilation of interesting information and a succession of important interpretations about the production, delivery, degradation, and burial of organic matter in the world's only polar ocean. ... The three features of the book that make it particularly special are its content, its presentation, and its timeliness. ... Because of the way that Stein and Macdonald have so effectively integrated and organized a wealth of information about the Arctic, many kinds of scientists would benefit from it." (Phillip A. Meyers, Polar Record, Vol. 41 (3), 2005)