Effective determination of biomass in oak coppices
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ORIGINAL ARTICLE
Effective determination of biomass in oak coppices Martin Šrámek1 · Marie Matoušková1 · Klára Lengálová1 · Michaela Kruttová1 · Tzvetan Zlatanov2 · Luboš Úradníček1 · Lenka Ehrenbergerová1 · Radim Matula3 Received: 11 December 2019 / Accepted: 4 May 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Key message The diameter at breast height of the largest sprout per coppiced stool proved to be accurate for the total sprout biomass estimates at stand level. Abstract Traditional coppicing is one of the oldest silvicultural systems for biomass production. However, a quick and simple biomass estimate methodology across the entire growth period is lacking. The objective of this study was to find the sprout parameters that need to be measured for accurate sprout estimates as well as to find a necessary minimum number of sprouts for these estimates. Using data from 20 sample Turkey oak multi-stem trees, we modelled sprout biomass as a function of an increasing number of sprouts in interaction with different sprout parameters in a later post-resprouting period. Results showed that the DBH of only two of the largest sprouts per stump proved to be accurate estimators of the total sprout biomass of the individual stool. For sprout biomass estimates at stand level, we recommend measuring the DBH of the largest sprout within each stool in a plot and then calculating and summing the estimated sprout biomasses of the individual stools. This study illustrates that the biomass can simply be estimated by easily measured parameters of sprouts; therefore, the multi-stemmed trees can be easily included into the yield or ecosystem studies of woody vegetation with less time-consuming measurements. Keywords Biomass · Coppicing · Oak · Production
Introduction Coppicing is a traditional short-rotation silvicultural system (Hytönen and Issakainen 2001; Matula et al. 2012; Suchomel et al. 2012; Vacchiano et al. 2017) that rapidly generates large quantities of woody biomass (Spinelli et al. 2017). It was widely applied in temperate forests across Europe and Asia in the past (Svátek and Matula 2015;
Šebesta et al. 2017; Erfanifard and Sheikholeslami 2017; Dinh et al. 2019) but was largely abandoned during the nineteeth and twentieth centuries due to the declining demand for coppice products. However, in recent decades, traditional coppicing regained its popularity not only as a source of sustainable woody biomass (Jansen and Kuiper 2004; Geyer 2006) but also as a conservational measure to increase forest biodiversity and protect endangered species (Müllerová et al. 2015; Kirby et al. 2017). Due to the positive effects on both
Communicated by Koike. * Martin Šrámek [email protected]
Lenka Ehrenbergerová [email protected]
Marie Matoušková [email protected]
Radim Matula [email protected]
Klára Lengálová [email protected]
1
Michaela Kruttová [email protected]
Department of Forest Botany, Dendrology and Geobiocoenology, Mendel Univer
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