Landscape of Danube inland-delta and its potential of poplar bioenergy production

The Slovakian portion of the Danube inland-delta represents a unique landscape. Branches of the Danube and more or less regular flooding with its alluvial deposit have created the most fertile soils which are partly forested. The greatest portion of the area is the crop land, while the forests are m...

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Bibliographic Details
Published in:Biomass & bioenergy 2013-08, Vol.55, p.68-72
Main Authors: Petráš, Rudolf, Mecko, Julian, Oszlányi, Július, Petrášová, Viera, Jamnická, Gabriela
Format: Article
Language:English
Subjects:
Age
bark
bioenergy
Biomass
Calorific value
clones
cropland
forests
I-214
landscapes
Populus
Populus spp
Populus x euramericana
Robusta
soil
stems
tree and stand measurements
trees
wood
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Summary:The Slovakian portion of the Danube inland-delta represents a unique landscape. Branches of the Danube and more or less regular flooding with its alluvial deposit have created the most fertile soils which are partly forested. The greatest portion of the area is the crop land, while the forests are man-made with the poplar clones representing the stand-forming tree species. The present study investigates the influence of 7 predictors composed of the 3 biomass fractions, location on tree and clone factors and the 4 variables of stand index and age of stand and the height and diameter of tree on the calorific values of Robusta and I-214 (Populus x euramericana) clones in Slovak territory. A statistical significance influence resulted for all predictors except for the clone factor. The average calorific value of all biomass fractions is approximately in the range of 17.8–18.4 MJ kg−1 and statistical tests showed that wood has the highest calorific values while the thick bark on the lower parts of the stems had the least. ► We report the possibilities of I-214 and Robusta clones using for bioenergy purposes. ► We examine HHV in the level of clone, biomass fraction and the location on the tree. ► Wood and small-wood with bark have the highest average HHV of 18.43 MJ kg−1. ► The lowest average HHV value of 17.84 MJ kg−1 is found for bark at the stem base.
ISSN:0961-9534
1873-2909
DOI:10.1016/j.biombioe.2012.05.022