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Estimation of forest litter fractions by regression analysis in different aged stands of Pinus nigra

dc.creatorBaris Tecimen,Hüseyin
dc.creatorSevgi,Orhan
dc.creatorYalcin Yilmaz,Osman
dc.creatorCarus,Serdar
dc.creatorKavgaci,Ali
dc.creatorAkburak,Serdar
dc.date2019-01-01
dc.date.accessioned2019-06-12T02:01:05Z
dc.date.available2019-06-12T02:01:05Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-92002019000100041
dc.identifier.urihttps://bibliotecadigital.infor.cl/handle/20.500.12220/29136
dc.descriptionSUMMARY: Forest litter (FL) carbon accumulation patterns can be predicted by certain tree and stand parameters to assess how variably managed forests may accumulate carbon. The aim of our study was to use tree stand data to refine methods to predict the composition of FL fragments in temperate, semi-humid black pine forests (Pinus nigra) in western Anatolia, Turkey. Predictive models were established between FL fractions (fine fragments of < 2, 2-4, and > 4 mm and coarse woody debris of branches < 5 cm, > 5 cm, cones and bark) and tree parameters (stand age, tree height, diameter at breast height, tree basal area, tree density, lowest tree crown height and tree crown thickness). We sampled 105 stands of ages < 50, 50-100, and > 100 years, that were distributed at 5 altitudinal steps (500 to 1,750 m). A multi-regression analysis was used to estimate FL fraction for different-age stands. Total FL dry biomass varied from 18 to 213 Mg/ha (average: 94 Mg/ha). The fine fragment fraction (> 4 mm) represented the largest proportion of FL (36 %). Coarse woody debris amounted for 6.6-7.8 % of the FL and branches < 5 cm accounted for the highest proportion (12.4-26.4 %) of coarse woody debris. The most influential parameters predicting FL fragment proportions included dry branch thickness, thinning rate, height and age (R2: 0.11 to 0.67). The combination of long-term observation and fine and coarse litter trapping methods should improve the estimation rates of sequestered carbon in forest ecosystems.
dc.formattext/html
dc.languageen
dc.publisherUniversidad Austral de Chile, Facultad de Ciencias Forestales
dc.relation10.4067/S0717-92002019000100041
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceBosque (Valdivia) v.40 n.1 2019
dc.subjectblack pine
dc.subjectdry branch thickness
dc.subjectforest litter
dc.subjectstand age
dc.titleEstimation of forest litter fractions by regression analysis in different aged stands of Pinus nigra
dc.typeArtículo de revista


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