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description Publicationkeyboard_double_arrow_right Article , Journal 2014Embargo end date: 22 Dec 2016 Russian Federation, Russian Federation, GermanyPublisher:Copernicus GmbH Authors: Yaoming Ma; Georg Miehe;Tobias Biermann;
Tobias Biermann; +34 AuthorsTobias Biermann
Tobias Biermann in OpenAIREYaoming Ma; Georg Miehe;Tobias Biermann;
Tobias Biermann; Jürgen Leonbacher;Tobias Biermann
Tobias Biermann in OpenAIREXingliang Xu;
Xingliang Xu; Yongping Yang; Yue Sun; Yue Sun;Xingliang Xu
Xingliang Xu in OpenAIREXiao Gang Li;
Lena Becker;Xiao Gang Li
Xiao Gang Li in OpenAIRESandra Spielvogel;
Sandra Spielvogel;Sandra Spielvogel
Sandra Spielvogel in OpenAIRETobias Gerken;
Tobias Gerken; Tobias Gerken; Christoph Leuschner; Sandra Willinghöfer;Tobias Gerken
Tobias Gerken in OpenAIREThomas Foken;
Olga Shibistova; Olga Shibistova; Lang Zhang; Heinz Coners; Eva Falge; Silke Hafner;Thomas Foken
Thomas Foken in OpenAIREGeorg Guggenberger;
Georg Guggenberger
Georg Guggenberger in OpenAIREJohannes Ingrisch;
Johannes Ingrisch; Elke Seeber; Karsten Wesche;Johannes Ingrisch
Johannes Ingrisch in OpenAIREYakov Kuzyakov;
Yakov Kuzyakov; Per Schleuß; Hans-F. Graf; Klaus Schützenmeister; Thomas Leipold;Yakov Kuzyakov
Yakov Kuzyakov in OpenAIREWolfgang Babel;
Wolfgang Babel
Wolfgang Babel in OpenAIREAbstract. The Tibetan Plateau has a significant role with regard to atmospheric circulation and the monsoon in particular. Changes between a closed plant cover and open bare soil are one of the striking effects of land use degradation observed with unsustainable range management or climate change, but experiments investigating changes of surface properties and processes together with atmospheric feedbacks are rare and have not been undertaken in the world's two largest alpine ecosystems, the alpine steppe and the Kobresia pygmaea pastures of the Tibetan Plateau. We connected measurements of micro-lysimeter, chamber, 13C labelling, and eddy covariance and combined the observations with land surface and atmospheric models, adapted to the highland conditions. This allowed us to analyse how three degradation stages affect the water and carbon cycle of pastures on the landscape scale within the core region of the Kobresia pygmaea ecosystem. The study revealed that increasing degradation of the Kobresia turf affects carbon allocation and strongly reduces the carbon uptake, compromising the function of Kobresia pastures as a carbon sink. Pasture degradation leads to a shift from transpiration to evaporation while a change in the sum of evapotranspiration over a longer period cannot be confirmed. The results show an earlier onset of convection and cloud generation, likely triggered by a shift in evapotranspiration timing when dominated by evaporation. Consequently, precipitation starts earlier and clouds decrease the incoming solar radiation. In summary, the changes in surface properties by pasture degradation found on the highland have a significant influence on larger scales.
Biogeosciences (BG) arrow_drop_down Publikationenserver der Georg-August-Universität GöttingenArticle . 2014 . Peer-reviewedLicense: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/bg-11-6633-2014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 79 citations 79 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert Biogeosciences (BG) arrow_drop_down Publikationenserver der Georg-August-Universität GöttingenArticle . 2014 . Peer-reviewedLicense: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/bg-11-6633-2014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2016 Finland, France, Germany, NetherlandsPublisher:Copernicus GmbH Funded by:EC | DOFOCOEC| DOFOCOAuthors:Bernard Heinesch;
Vladislav Bastrikov;Bernard Heinesch
Bernard Heinesch in OpenAIREAlexander Knohl;
James Ryder; +23 AuthorsAlexander Knohl
Alexander Knohl in OpenAIREBernard Heinesch;
Vladislav Bastrikov;Bernard Heinesch
Bernard Heinesch in OpenAIREAlexander Knohl;
James Ryder; Andrew Black;Alexander Knohl
Alexander Knohl in OpenAIREThomas Foken;
Thomas Foken
Thomas Foken in OpenAIREKim Naudts;
Kim Naudts; Jan Elbers; Juliane Otto;Kim Naudts
Kim Naudts in OpenAIREVanessa Haverd;
Eddy Moors;Vanessa Haverd
Vanessa Haverd in OpenAIRESebastiaan Luyssaert;
Sebastiaan Luyssaert; Eva van Gorsel; Catherine Ottlé; Aude Valade;Sebastiaan Luyssaert
Sebastiaan Luyssaert in OpenAIREPhilippe Peylin;
Philippe Peylin
Philippe Peylin in OpenAIREMatthew J. McGrath;
Samuel Launiainen; Jérôme Ogée; Timo Vessala; Yiying Chen; Yiying Chen; Dennis Loustau; Frank Tiedemann;Matthew J. McGrath
Matthew J. McGrath in OpenAIREJan Polcher;
Jan Polcher
Jan Polcher in OpenAIREAbstract. Canopy structure is one of the most important vegetation characteristics for land–atmosphere interactions, as it determines the energy and scalar exchanges between the land surface and the overlying air mass. In this study we evaluated the performance of a newly developed multi-layer energy budget in the ORCHIDEE-CAN v1.0 land surface model (Organising Carbon and Hydrology In Dynamic Ecosystems – CANopy), which simulates canopy structure and can be coupled to an atmospheric model using an implicit coupling procedure. We aim to provide a set of acceptable parameter values for a range of forest types. Top-canopy and sub-canopy flux observations from eight sites were collected in order to conduct this evaluation. The sites crossed climate zones from temperate to boreal and the vegetation types included deciduous, evergreen broad-leaved and evergreen needle-leaved forest with a maximum leaf area index (LAI; all-sided) ranging from 3.5 to 7.0. The parametrization approach proposed in this study was based on three selected physical processes – namely the diffusion, advection, and turbulent mixing within the canopy. Short-term sub-canopy observations and long-term surface fluxes were used to calibrate the parameters in the sub-canopy radiation, turbulence, and resistance modules with an automatic tuning process. The multi-layer model was found to capture the dynamics of sub-canopy turbulence, temperature, and energy fluxes. The performance of the new multi-layer model was further compared against the existing single-layer model. Although the multi-layer model simulation results showed few or no improvements to both the nighttime energy balance and energy partitioning during winter compared with a single-layer model simulation, the increased model complexity does provide a more detailed description of the canopy micrometeorology of various forest types. The multi-layer model links to potential future environmental and ecological studies such as the assessment of in-canopy species vulnerability to climate change, the climate effects of disturbance intensities and frequencies, and the consequences of biogenic volatile organic compound (BVOC) emissions from the terrestrial ecosystem.
Hyper Article en Lig... arrow_drop_down École Polytechnique, Université Paris-Saclay: HALArticle . 2016Full-Text: https://hal.science/hal-01587561Data sources: Bielefeld Academic Search Engine (BASE)Institut national des sciences de l'Univers: HAL-INSUArticle . 2016Full-Text: https://hal.science/hal-01587561Data sources: Bielefeld Academic Search Engine (BASE)Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQArticle . 2016Full-Text: https://hal.science/hal-01587561Data sources: Bielefeld Academic Search Engine (BASE)Geoscientific Model Development (GMD)Article . 2016 . Peer-reviewedLicense: CC BYData sources: CrossrefGeoscientific Model DevelopmentArticle . 2016Data sources: DANS (Data Archiving and Networked Services)Geoscientific Model DevelopmentArticle . 2016Data sources: DANS (Data Archiving and Networked Services)Publikationenserver der Georg-August-Universität GöttingenArticle . 2016 . Peer-reviewedLicense: CC BYINRIA a CCSD electronic archive serverArticle . 2016Data sources: INRIA a CCSD electronic archive serverWageningen Staff PublicationsArticle . 2016License: CC BYData sources: Wageningen Staff Publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/gmd-9-2951-2016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 44 citations 44 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert Hyper Article en Lig... arrow_drop_down École Polytechnique, Université Paris-Saclay: HALArticle . 2016Full-Text: https://hal.science/hal-01587561Data sources: Bielefeld Academic Search Engine (BASE)Institut national des sciences de l'Univers: HAL-INSUArticle . 2016Full-Text: https://hal.science/hal-01587561Data sources: Bielefeld Academic Search Engine (BASE)Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQArticle . 2016Full-Text: https://hal.science/hal-01587561Data sources: Bielefeld Academic Search Engine (BASE)Geoscientific Model Development (GMD)Article . 2016 . Peer-reviewedLicense: CC BYData sources: CrossrefGeoscientific Model DevelopmentArticle . 2016Data sources: DANS (Data Archiving and Networked Services)Geoscientific Model DevelopmentArticle . 2016Data sources: DANS (Data Archiving and Networked Services)Publikationenserver der Georg-August-Universität GöttingenArticle . 2016 . Peer-reviewedLicense: CC BYINRIA a CCSD electronic archive serverArticle . 2016Data sources: INRIA a CCSD electronic archive serverWageningen Staff PublicationsArticle . 2016License: CC BYData sources: Wageningen Staff Publicationsadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/gmd-9-2951-2016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu