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dc.contributor.authorBASCIETTO Marcoen_GB
dc.contributor.authorDE CINTI Brunoen_GB
dc.contributor.authorMATTEUCCI Giorgioen_GB
dc.contributor.authorCESCATTI Alessandroen_GB
dc.date.accessioned2014-03-04T01:01:34Z-
dc.date.available2014-03-03en_GB
dc.date.available2014-03-04T01:01:34Z-
dc.date.created2012-03-27en_GB
dc.date.issued2012en_GB
dc.date.submitted2012-01-12en_GB
dc.identifier.citationFOREST ECOLOGY AND MANAGEMENT vol. 267 p. 172–181en_GB
dc.identifier.issn0378-1127en_GB
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0378112711007389en_GB
dc.identifier.urihttp://publications.jrc.ec.europa.eu/repository/handle/JRC68614-
dc.description.abstractAccurate measurements of carbon pools and fluxes and of the related uncertainties are required to support the estimation of regional and continental carbon budgets. For this purpose a rigorous statistical method, known as Randomized Branching Sampling (RBS), has been applied for the direct assessment of carbon pools, fluxes (Net Primary Productivity) and plant surface areas in three forests. RBS is an unequal probability selection scheme that is design unbiased and efficient. Through its theory and design, RBS provides an unbiased estimate of uncertainties both at single tree and ecosystem scales. RBS designed samplings proved to be less time-consuming than traditional ones by lowering the number of sample branches needed to achieve the target precision levels and by getting rid of fresh weight measurements in the field. RBS estimates of C pools were compared and discussed to traditional estimates achieved by allometric functions fitted using the power equation Y ¼ b Xa revealing good agreement; differences between the RBS and allometric approaches were higher in older or more structured forests. Optimal scaling exponents for foliage, branch and stem components, for pool, flux and surface parameters in European beech, Scots pine and Norway spruce stands were estimated by analysis of the precision of target aggregate estimators. In all stands, the scaling exponent for the stand-scale estimates proved to be lower than the scaling exponent estimated from the allometric fitting and than analytically derived exponents. This discrepancy could lead, should the latter scaling exponents be used, to over-estimate C pools in forests.en_GB
dc.description.sponsorshipJRC.H.7-Climate Risk Managementen_GB
dc.format.mediumPrinteden_GB
dc.languageENGen_GB
dc.publisherELSEVIER SCIENCE BVen_GB
dc.relation.ispartofseriesJRC68614en_GB
dc.titleBiometric assessment of aboveground carbon pools and fluxes in three European forests by Randomized Branch Samplingen_GB
dc.typeArticles in periodicals and booksen_GB
dc.identifier.doi10.1016/j.foreco.2011.12.007en_GB
JRC Directorate:Sustainable Resources

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