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Tag: Global carbon

Global Carbon Cycling on a Heterogeneous Seafloor

Carbon, nitrogen and oxygen are the fundamental elements of life on Earth. Global carbon varies in amount and its capacity to provide realistic ecosystem response

Carbon cycle
Complexities of two perspectives of carbon cycles.

to environmental changes. In the past century ecological changes increased and the prediction of  the important role of the ocean in global carbon cycle







Where Has All the Carbon Gone?

seafloor biotaGlobal carbon  illustrate the seafloor heterogeneity that influence biodiversity and offers substantial variability in biological process.Transformation of organic matter into living tissues that respires oxygen and releases carbon dioxide add to the global carbon cycle. Increase in population attributes to the changes in global carbon including species response to the global environmental changes. On the other hand carbon cycling from shallow to deep seafloor ecosystems emphasizes the importance of organisms in global carbon models. Indeed, seabed ecosystem varies in organic matter that associate to the increase of global carbon processing.


Biogeochemical and Biological Model of carbon estimates

Carbon cycle on the seafloorGlobal carbon turnover has two simple approaches. First, the used of widely develop geochemical model of carbon to the deep ocean. As well as the production of organic matter near the surface and net remineralizaton of water column dominates global carbon. On the other hand lateral transport and interaction of biological pump comprises at least 50% organic carbon to the seafloor. Second, the used of biological based turnover rate calculated as sediment oxygen consumption rate over the seafloor standing biomass. Organisms consuming organic matter draws parallel effect to the total biomass on global carbon turnover.


Indeed, global carbon cycles requires better model to create not only the precise estimates of carbon degradation. But also on more specific projections on environmental changes. The seafloor biota in global carbon patterns also affects carbon processing. Furthermore, cautions in drawing inferences is needed in determining the flows of global carbon cycling. Thus biogeochemical  models does not totally lodge significant variables considering the changes in abiotic and biotic. Therefore, it is needed to generate proper evaluation in global carbon cycles because it emphasizes various aspects on global climate change.



Source: Trends in Ecology and Evolution