Export is not enough : nutrient cycling and carbon sequestration
MetadataShow full item record
The question of whether ocean iron fertilization (OIF) can yield verifiable carbon sequestration is often cast in terms of whether fertilization results in enhanced particle export. However, model studies show that oceanic carbon storage is only weakly related to global particle export—depending instead on an increase in the carbon associated with the pool of remineralized nutrients. The magnitude of such an increase depends on circulation, stoichiometric ratios and gas exchange. We argue that this puts serious challenges before efforts to properly credit OIF that must be taken into account at the design stage.
Author Posting. © Inter-Research, 2008. This article is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Marine Ecology Progress Series 364 (2008): 289-294, doi:10.3354/meps07550.
Showing items related by title, author, creator and subject.
Effects of ozone on net primary production and carbon sequestration in the conterminous United States using a biogeochemistry model Felzer, Benjamin S.; Kicklighter, David W.; Melillo, Jerry M.; Wang, C.; Zhuang, Qianlai; Prinn, Ronald G. (2003-11-25)The effects of air pollution on vegetation may provide an important control on the carbon cycle that has not yet been widely considered. Prolonged exposure to high levels of ozone, in particular, has been observed to ...
Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems Euskirchen, E. S.; McGuire, A. David; Kicklighter, David W.; Zhuang, Qianlai; Clein, Joy S.; Dargaville, R. J.; Dye, D. G.; Kimball, John S.; McDonald, Kyle C.; Melillo, Jerry M.; Romanovsky, V. E.; Smith, N. V. (2005-10-07)In terrestrial high-latitude regions, observations indicate recent changes in snow cover, permafrost, and soil freeze-thaw transitions due to climate change. These modifications may result in temporal shifts in the growing ...
Coverdale, Tyler C.; Brisson, Caitlin P.; Young, Eric W.; Yin, Stephanie F.; Donnelly, Jeffrey P.; Bertness, Mark D. (Public Library of Science, 2014-03-27)Direct and indirect human impacts on coastal ecosystems have increased over the last several centuries, leading to unprecedented degradation of coastal habitats and loss of ecological services. Here we document a two-century ...