Sentences with phrase «ecosystem carbon cycle»

Li J, Luo Y, Natali S, Schuur EAG, Xia J, Kowalczyk E, Wang Y (2014) Modeling permafrost thaw and ecosystem carbon cycle under annual and seasonal warming at an Arctic tundra site in Alaska.

Cao, M. & Woodward, F. I. Dynamic responses of terrestrial ecosystem carbon cycling to global climate change.

Not exact matches

Toohey said the two studies strongly suggest that permafrost loss is leading to massive changes in hydrology within the Arctic and boreal forests that may have consequences for the carbon cycle, fish and wildlife habitat and other parts of the ecosystem.

Former President Barack Obama in 2014 made research on understanding carbon dynamics in these coastal ecosystems a priority because of their importance to the global carbon cycle.

When tides retreat, they pull out matter and energy, which makes it very challenging to understand the carbon cycle on these ecosystems.

[W. R. L. Anderegg et al, Pervasive drought legacies in forest ecosystems and their implications for carbon cycle models]

Professor Friedlingstein, who is an expert in global carbon cycle studies added: «Current land carbon cycle models do not show this increase over the last 50 years, perhaps because these models underestimate emerging drought effects on tropical ecosystems.»

The team used DayCent, an ecosystem modeling tool that tracks the carbon cycle, plant growth, and how growth responds to weather, climate and other factors at a local scale.

Because nitrogen and carbon cycles are tightly coupled, the team's discovery might also alter projections of carbon storage or release from arctic ecosystems as the climate warms.

«It's a hard question to answer, because it takes a long time to see how ecosystem carbon and nitrogen cycles change.»

The trees also have other ecosystem functions, in the form of carbon sequestration and effects on nutrient cycling and retention.

Although coccolithophores are microscopic, their abundance makes them key contributors to marine ecosystems and the global carbon cycle.

«In order to predict how ecosystems will react when you heat up the planet or acidify the ocean, we first need to understand the mechanisms of everyday carbon cycling — who's involved and how are they doing it?»

But the document also emphasizes the need to study how carbon cycles through ecosystems, a category that encompasses Bowen, Sanderman and Saleska's projects.

It's broadly understood that the world's oceans play a crucial role in the global - scale cycling and exchange of carbon between Earth's ecosystems and atmosphere.

While the new finding exposes the unexpected capability of a significant species in carbon cycling, the scientists say there is much more to the story since whole communities of microbes may interact together or live symbiotically in the microscopic ecosystems of the sea.

By demonstrating that key individual species within the ecosystem can play a disproportionally large role in carbon cycling, this study helps bring us a step closer to understanding the function these microbes play in larger questions of climate warming and increased acidity in the ocean.

«The data is still coming in but there are indications that this ecosystem is shifting and it could potentially be a massive shift,» he says, pointing to changes in the global carbon cycle and the predator / prey dynamics.

Climate change is thus inseparable from ocean change, and our ability to understand these changes relies heavily on our understanding of ocean ecosystems and, more specifically, the role of iron in regulating ocean productivity and hence the global carbon cycle and climate.

In addition, while the death of small trees may affect the dominance of trees in a landscape, the death of large trees has a far worse impact on the ecosystem and climate's health, especially due to the important role that trees play in the carbon cycle.

Researchers note that the global consequences on ecosystem function, biodiversity, and the carbon cycle that begets climate change could be great.

I study the cycles of water, carbon, nitrogen, phosphorus and sulfur at the process, ecosystem and global levels.

In a paper published in Science Advances, he proposes that mass extinction occurs if one of two thresholds are crossed: For changes in the carbon cycle that occur over long timescales, extinctions will follow if those changes occur at rates faster than global ecosystems can adapt.

Schimel presented his work to forecast and understand land - ecosystem impacts on the carbon cycle at the global scale as part of the Frontiers in Global Change Seminar Series, June 21.

Marine planktonic ecosystem dynamics, biogeochemical cycling and ocean - atmosphere - land carbon system, ocean acidification, climate change and ocean circulation, satellite ocean color, air - sea gas exchange, numerical modeling, data analysis, and data assimilation

My research concerns carbon and nutrient cycling in terrestrial ecosystems, particularly (but not exclusively) high - latitude northern ecosystems.

Sitch, S., et al., 2003: Evaluation of ecosystem dynamics, plant geography and terrestrial carbon cycling in the LPJ dynamic global vegetation model.

Variability in carbon uptake and (re) cycling in Antarctic cryptoendolithic microbial ecosystems demonstrated through radiocarbon analysis of organic biomarkers — A. L. Brady — GE Biology

Despite claims to the contrary, the conclusions of the IPCC take CO2 fertilisation properly into account in the assessment of climate change feedbacks involving the carbon cycle, and in the assessment of the impacts of climate change on ecosystems.

Consequently, an international team of researchers led by Markus Reichstein, director at the Max Planck Institute for Biogeochemistry in Jena, Germany, investigated the influence of extreme climate events on the carbon cycle of land ecosystems and if the resulting additional CO2 emissions feedback on climate change.

At PNNL, her research focuses on the microbial ecology of soils and other terrestrial ecosystems, which includes efforts to understand the carbon cycling processes of microbial communities.

His research is at the interface of ecosystems, land use, and climate change focusing on tropical deforestation and degradation, functional diversity of tropical canopies, conservation of African savannas, invasive species and climate change, and the effects of land use on the global carbon cycle.

The problem with this comment is that it shows a fundamental misunderstanding of the carbon cycle — the cycling of carbon through an ecosystem.

Prognostic models of terrestrial carbon cycle and terrestrial ecosystem processes are central for any consideration of the effects of environmental change and analysis of mitigation strategies; moreover, these demands will become even more significant as countries begin to adopt carbon emission targets.

Thus, these microscopic bacteria perform a huge function in helping determine the oceanic ecosystem response to the cycling of carbon under climate change.

My research focuses on interactions among climate, the ocean and global carbon cycles, and marine ecosystems, and I have published more than 200 peer - reviewed scientific journal articles and book chapters on these and related subjects.

«These forests matter to the rest of us on Earth because of how they help regulate climate by keeping carbon in the soil and in the trees and out of the atmosphere,» says Peter Griffith, founding director of NASA's Carbon Cycle and Ecosystems Office.

In particular but in no particular order, informed conservation of biological diversity, development of public taste for a thriving ecosystem, responsiveness of governments to the will of individual human beings not of corporate fictions, levelling the playing field by privatizing the carbon cycle, enlightened application of the principles (by which I mean from Newton's Principia) of Science to questions of climate science, and payment for harms by those who cause them.

Kadyszewski presented ACR's Climate Leadership award to Dr. Sandra Brown, Winrock senior scientist and former director of Winrock's Ecosystem Services Group, for four decades of work advancing the understanding of the role forests play in the global carbon cycle.

Ecosystem productivity and carbon cycling in intact and annually burnt forest at the dry southern limit of the Amazon rainforest (Mato Grosso, Brazil).

But these ecosystems will be severely affected by imbalances in the cycle of carbon, nitrogen and phosphorus.»

Robbie is a graduate of Trent University and the University of British Columbia where he studied physical geography and plant biology and went on to study areas of climatology and the carbon cycle of forest ecosystems.

In combination with the stabilizing ECPs (ECP4.5 and ECP6), this peak and decline extension would facilitate research into physical asymmetries and reversibility of climate, carbon cycle, and biophysical impacts systems (e.g. ecosystems, sea level rise).

But the precise effect of pine bark beetle plagues on the nitrogen cycle and carbon cycle is highly variable, says a research group led by the University of Idaho, who have used an ecosystem model to simulate outbreaks.

Describing new species and their ecological roles, quantifying carbon and energy fluxes in the ecosystem, documenting the annual cycle of ecological processes, identifying hotspots of biological production, and contrasting the ecology of the different arctic seas are the objectives shared by several international and multidisciplinary research efforts that contributed to the Canadian IPY program.

Scientists from these agencies will undertake programs in climate modelling, atmosphere radiation measurement, atmospheric science, the terrestrial carbon cycle, the ocean carbon cycle, and ecosystem research program, and finally will produce an integrated assessment, according to Dr. Raymond Orbach, the Energy Department's director of the Office of Science.

Hans @ 27, there are a large number of studies of carbon exchange in a variety of ecosystems and seas, many of which will also analyse the day / night (diurnal) cycle.

Kasischke, E.S., Boreal ecosystems in the global carbon cycle, pp. 19 - 30 in Fire, Climate Change and Carbon Cycling in the Boreal Forest, Kasischke, E.S., and B.J. Stocks (editors), Ecological Studies Series, Springer - Verlag, New York, 2000.

There are also potentially significant implications for ecosystems and the carbon cycle in the high latitudes.

«It's a hard question to answer, because it takes a long time to see how ecosystem carbon and nitrogen cycles change.»