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Ancillary vegetation measurements at ICOS ecosystem stations

Bert Gielen 1 Manuel Acosta 2 Nuria Altimir 3, 4 Nina Buchmann 5 Alessandro Cescatti 6 Eric Ceschia 7 Stefan Fleck 8 Lukas Hörtnagl 5 Katja Klumpp 9 Pasi Kolari 4 Annalea Lohila 10 Denis Loustau 11 Sara Marañon-Jimenez 12, 13 Tanguy Manise 14 Giorgio Matteucci 15 Lutz Merbold 16 Christine Metzger 17 Christine Moureaux 14 Leonardo Montagnani 18, 19 Mats B. Nilsson 20 Bruce Osborne 21 Dario Papale 22 Marian Pavelka 2 Matthew Saunders 23 Guillaume Simioni 24 Kamel Soudani 25 Oliver Sonnentag 26 Tiphaine Tallec 7 Eeva-Stiina Tuittila 27 Matthias Peichl 20 Radek Pokorny 2 Caroline Vincke 28 Georg Wohlfahrt 29
Abstract : The Integrated Carbon Observation System is a Pan-European distributed research infrastructure that has as its main goal to monitor the greenhouse gas balance of Europe. The ecosystem component of Integrated Carbon Observation System consists of a multitude of stations where the net greenhouse gas exchange is monitored continuously by eddy covariance measurements while, in addition many other measurements are carried out that are a key to an understanding of the greenhouse gas balance. Amongst them are the continuous meteorological measurements and a set of non-continuous measurements related to vegetation. The latter include Green Area Index, aboveground biomass and litter biomass. The standardized methodology that is used at the Integrated Carbon Observation System ecosystem stations to monitor these vegetation related variables differs between the ecosystem types that are represented within the network, whereby in this paper we focus on forests, grasslands, croplands and mires. For each of the variables and ecosystems a spatial and temporal sampling design was developed so that the variables can be monitored in a consistent way within the ICOS network. The standardisation of the methodology to collect Green Area Index, above ground biomass and litter biomass and the methods to evaluate the quality of the collected data ensures that all stations within the ICOS ecosystem network produce data sets with small and similar errors, which allows for inter-comparison comparisons across the Integrated Carbon Observation System ecosystem network.
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Bert Gielen, Manuel Acosta, Nuria Altimir, Nina Buchmann, Alessandro Cescatti, et al.. Ancillary vegetation measurements at ICOS ecosystem stations. International Agrophysics, Sciendo/De Gruyter, 2018, 32 (4), pp.645-664. ⟨10.1515/intag-2017-0048⟩. ⟨hal-02621533⟩

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