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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Stanovení dřevní biomasy stínících dřevin kávových plantáží v oblasti Villa Rica, Peru
 Šeptunová, Zuzana
Allometric models for dominant shade tree species were developed for coffee agroforestry systems in Villa Rica, Peru. The studied shade tree species were Eucalyptus saligna, Pinus tecunumanii, Pinus radiata and Prumnopitys harmsiana. The models predict total aboveground biomass volume of tree trunk and biomass volume of the commercial utilizable tree trunk based on diameter at breast height, which was identified as the best predictor, R2 > 0,98. By non-destructive method of using Field-Map technology was measured 258 individuals. From these data have been calculated volumes of 4 types of cut outs destined for the local standards for determining the commercial utilizable tree trunk. Thus prepared data was interleaved with tested models. The best-fit model was logarithmic transformation of power-law. This model was used to determine total volume and two types of cut outs for all studied species. In all cases was reached high R2 between 0.98 and 0.99. For the other two types of cut outs data the best-fit model was Gompertz.
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