HOME >> BIOLOGY >> NEWS
Do US ecosystems balance US fossil fuel use?

e times larger than the modeled flux, an uptake still much smaller than the atmospheric analysis implied.

The low estimates from the models and inventories suggest that ecosystems in the US, and North America, are storing carbon, but much less than is being emitted by fossil fuel use. The uptake is widely distributed around the US, in forests, grasslands, farmlands and other ecosystems. This result implies that other regions of the world - Europe, Siberia or the tropical forests - must also be important.

The uptake of carbon was modeled from 1895 to 1993. Over this period, the fluxes were highly variable as the weather varied from one year to the next. This shows that carbon storage is very sensitive to the climate and if there is climate change in the future, ecosystem carbon storage will respond. In general, warmer and drier conditions caused carbon release to the atmosphere. The high variability of carbon storage from one year to the next has another implication. Under the Kyoto protocol, which is the international agreement to limit fossil fuel emissions, "commitment periods" are identified during which national carbon budgets must be compiled, including estimates of carbon uptake in deliberately managed forests. However, the models show that the amount of ecosystem uptake is greatly variable and can even go from uptake to release from year to year! Therefore, depending on the weather, the ecosystem balance in a given country could be positive or negative during the commitment period, and this will complicate the use of reporting intervals.

Until recently, scientists and policymakers have assumed that CO2 fertilization was the main mechanism for carbon uptake by ecosystems. Carbon fertilization is the stimulation of plant growth by increasing atmospheric CO2, a well-known phenomenon. Recently, other mechanisms have also been identified as having global importance. In particular, the regrowth of forests on abandoned farmland (
'"/>

Contact: David Schimel
dschimel@bgc-jena.mpg.de
49-3641-643729
Max-Planck-Gesellschaft
9-Mar-2000


Page: 1 2 3

Related biology news :

1. New study to investigate demise of coral reef ecosystems
2. All ecosystems are equally productive under drought conditions
3. Biological oceanographers examine regime shifts in complex marine ecosystems
4. Freeing Nemo: Aquarium owners releasing non-native fish could endanger marine ecosystems
5. Faster carbon turnover in basal food-chain levels in aquatic than terrestrial ecosystems
6. URI oceanographer awarded NSF grant to study function of jellyfish in coastal ecosystems
7. Out-of-balance ecosystems play role in demise of amphibian populations
8. Northern climate, ecosystems driven by cycles of changing sunlight
9. Long-term decline of coral reef ecosystems reported
10. All species are not created equal when assessing the impacts of species loss on ecosystems
11. Finicky snails provide new clues to the evolution of coastal ecosystems

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: ecosystems balance fossil fuel use

(Date:8/6/2015)... SAN JOSE, Calif. , Aug. 6, 2015 ... the leading developer of human interface solutions, today ... and TouchPad technologies on Windows 10. Microsoft leveraged ... fundamental to the operating system. ... and drivers are fully certified with Microsoft,s Precision ...
(Date:8/4/2015)... Research and ... addition of the "Digital Forensics Market ... (Computer Forensics, Network Forensics, Mobile Device Forensics, ... and Region - Global Forecast to 2020" ... By Component (Hardware, Software, and Service), Sub-Segment ...
(Date:7/31/2015)... SHENZHEN, China , 31 de julio de 2015 ... sobre Genómica (ICG-10,  www.icg-10.org ) del 22 al 25 ... . La conferencia celebra su décimo ... se ha convertido en una de las reuniones anuales ... ,ómicas, y es una de las conferencias científicas más ...
Breaking Biology News(10 mins):Synaptics Chosen for Human Interface Co-Development on Windows 10 2Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3
(Date:9/2/2015)... 2, 2015 Research and Markets ... of Jain PharmaBiotech,s new report "Nanobiotechnology ... offering. An increasing use ... industries is anticipated. Nanotechnology will be applied ... from formulations for optimal delivery to diagnostic ...
(Date:9/2/2015)... Research and Markets ... Jain PharmaBiotech,s new report "Biochips and Microarrays ... offering. This report is an analysis ... The report starts with a description of technologies ... include array comparative genomic hybridization (CGH), copy number ...
(Date:9/2/2015)... 02, 2015 Research and ... Jain PharmaBiotech,s new report "Gene Therapy - Technologies, ... The markets for gene therapy are difficult to estimate ... and it is marketed in China ... the years 2014-2024. The estimates are based on epidemiology ...
(Date:9/2/2015)... ... 02, 2015 , ... Drug companies increasingly are adopting a ... reveals in its new report that the U.S. will generate the greatest demand ... the most market demand. , BCC Research examines plant-derived drugs in its ...
Breaking Biology Technology:Global Nanobiotechnology Applications, Markets and Companies Report 2015-2024 2Global Nanobiotechnology Applications, Markets and Companies Report 2015-2024 3Global Biochips and Microarrays Technologies, Markets and Companies Report 2015 with Market Size in 2014 and Projected Value for the Years 2019 and 2024 2Global Gene Therapy Market Study 2015-2024 - Technologies, Markets and Companies Analysis 2Plant-derived Compounds Poised to Assume Greater Role in Global Drug Markets, According to BCC Research 2Plant-derived Compounds Poised to Assume Greater Role in Global Drug Markets, According to BCC Research 3
Cached News: