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Effect of repeated spring drought and summer heavy rain on managed grassland biomass production and CO_(2) efflux

Journal of Plant Ecology 2017年第3期10卷 476-485页

作者： Eva Darenova petr holub Lenka Krupkova Marian Pavelka Global Change Research Institute Czech Academy of SciencesBelidla 4aCZ-60300 BrnoCzech Republic

Aims Ecosystem respiration represents an important component of the carbon *** response of respiration to climate change can have a significant effect on carbon sequestration in terrestrial ecosystems in the future when,according to climate scenarios,spring drought and consequent summer heavy rains are *** of our study were to determine the effect of repeated spring drought on biomass production and CO_(2) efflux from a mountain grassland in Beskydy Mountains in the Czech Republic and to evaluate factors driving the differences among the study *** CO_(2) efflux was measured on plots with ambient precipitation con-ditions(AMB)and on plots where drought conditions(DRY)in the first half of the growing seasons and consequent heavy rain were simulated in *** Findings The spring drought significantly decreased the amount of above-ground biomass sampled just after the simulated drought in all years except for *** the contrary,the spring drought stimulated root *** drought also resulted in a rapid decrease in CO_(2) *** was lower by up to 46%for the DRY treatment compared to AMB *** the sim-ulated drought period,differences in CO_(2) efflux between the treatments gradually *** heavy rains in DRY resulted in fast but temporary increase in CO_(2) *** can assume that the future spring drought will have a significant effect on carbon balance of grassland *** impact will depend on the length of the dry period and the time between the beginning of the growing season and the dry period.

关键词： above-ground biomass Beskydy Mountains rainfall manipulation respiration rainout shelters root biomass

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State of FAIRness in ESFRI Projects

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Data Intelligence 2020年第1期2卷 230-237,316页

作者： Peter Wittenburg Franciska de Jong Dieter van Uytvanck Massimo Cocco Keith Jeffery Michael Lautenschlager Hannes Thiemann Margareta Hellstrom Ari Asmi petr holub Max Planck Computing and Data Facility Gießenbachstraße 285748 GarchingGermany CLARIN ERIC CLARIN ERIC Drift 10Utrecht 3512 BSThe Netherlands EPOS ERIC Via di Vigna Murata 605Rome 00143Italy Keith G Jeffery Consultants FaringdonUK DKRZ Ringgold standard institution Bundesstr.45aHamburgHamburg 20146Germany Department of Physical Geography and Ecosystem Ringgold standard institutionLund UniversityScienc Sölvegatan 12Lund 22362Sweden University of Helsinki Ringgold Standard Institution–Institution of Atmospheric and Earth System Sciences P.O.Box 64Helsinki 00014Finland BBMRI-ERIC Neue Stiftingtalstrasse 2/B/6 Graz 8010Austria

Since 2009 initiatives that were selected for the roadmap of the European Strategy Forum on Research Infrastructures started working to build research infrastructures for a wide range of research *** important result of the strategic discussions was that distributed infrastructure scenarios were now seen as“complex research facilities”in addition to,for example traditional centralised infrastructures such as *** this paper we look at five typical examples of such distributed infrastructures where many researchers working in different centres are contributing data,tools/services and knowledge and where the major task of the research infrastructure initiative is to create a virtually integrated suite of resources allowing researchers to carry out state-of-the-art *** analysis shows that most of these research infrastructures worked on the Findability,Accessibility,Interoperability and Reusability dimensions before the term“FAIR”was actually *** definition of the FAIR principles and their wide acceptance can be seen as a confirmation of what these initiatives were doing and it gives new impulse to close still existing *** initiatives also seem to be ready to take up the next steps which will emerge from the definition of FAIR maturity *** from these infrastructures should bring in their 10-years’experience in this definition process.

关键词： Infrastructure FAIR Metrics GO FAIR Matrix

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