Differential Above- and Below-ground Biomass Accumulation of EuropeanPinus sylvestrisPopulations in a 12-year-old Provenance Experiment
作者:
J. Oleksyn,
P. B. Reich,
W. Chalupka,
M. G. Tjoelker,
期刊:
Scandinavian Journal of Forest Research
(Taylor Available online 1999)
卷期:
Volume 14,
issue 1
页码: 7-17
ISSN:0282-7581
年代: 1999
DOI:10.1080/02827589908540804
出版商: Taylor & Francis Group
关键词: biomass partitioning;diameter;height;provenance;root biomass;Scots pine
数据来源: Taylor
摘要:
Growth and the distribution of biomass among above- and below-ground components were measured in 12-year-old Scots pine (Pinus sylvestrisL.) from 19 populations grown in a provenance experiment in central Poland (52° N). The populations originated from the northern (>55°N in Russia, Sweden and Latvia), central (54–47° N in Poland, Germany, Belgium, France, Slovakia, Hungary), and southern (<45° N in Bosnia, Montenegro and Turkey) European range of Scots pine. Height, diameter and biomass were all significantly related to latitude of origin. For populations of northern, central and southern origin, above-ground biomass averaged 3.1, 4.7 and 3.3 kg tree−1and 25, 43 and 12 Mg ha−1. Total root biomass accounted for 22, 19 and 28% of total stand biomass for northern, central and southern populations, respectively. These differences were primarily the result of proportionally higher fine root biomass in the slower-growing northern and southern than central populations. Since the allometric regression equations based on diameter for total aboveground and coarse root biomass did not differ among populations or regions, biomass of Scots pine, excluding fine roots, may be accurately estimated from forest inventory data.
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