Some metals in aboveground biomass of Scots pine in Lithuania

TY - JOUR

T1 - Some metals in aboveground biomass of Scots pine in Lithuania

AU - Varnagiryte-Kabašinskiene, Iveta

AU - Armolaitis, Kestutis

AU - Stupak, Inge

AU - Kukkola, Mikko

AU - Wójcik, Józef

AU - Mikšys, Virgilijus

PY - 2014

Y1 - 2014

N2 - The stocks of iron (Fe), manganese (Mn), zinc (Zn) and aluminium (Al) in different compartments of the aboveground tree biomass were estimated in Scots pine (Pinus sylvestris L.) stands in Lithuania. Simulated removals of metals due to the forest biomass extraction in a model Scots pine stands during a 100-year-long rotation period were compared with metals pools in sandy soil and the fluxes through atmospheric deposition. Applying whole tree harvesting, total removal comprised about 20kgha-1 of each Al and Mn, and 5 times lower amount of each Zn and Fe. The metals were mainly removed with stemwood and living branches. However, metal export with aboveground biomass represented relatively small proportion of metals in mineral sandy soil. The annual inputs of Fe and Zn with atmospheric deposition were over 10 times higher than the mean annual removals with total aboveground biomass. The content of metals in forest biomass fuel ash was relatively small to compare with their total removals. The findings of this study have an important implications for future practice, i.e. the recommended maximum forest biomass fuel ash dose for the compensating fertilising could be increased with respect to balanced output - input in Lithuania.

AB - The stocks of iron (Fe), manganese (Mn), zinc (Zn) and aluminium (Al) in different compartments of the aboveground tree biomass were estimated in Scots pine (Pinus sylvestris L.) stands in Lithuania. Simulated removals of metals due to the forest biomass extraction in a model Scots pine stands during a 100-year-long rotation period were compared with metals pools in sandy soil and the fluxes through atmospheric deposition. Applying whole tree harvesting, total removal comprised about 20kgha-1 of each Al and Mn, and 5 times lower amount of each Zn and Fe. The metals were mainly removed with stemwood and living branches. However, metal export with aboveground biomass represented relatively small proportion of metals in mineral sandy soil. The annual inputs of Fe and Zn with atmospheric deposition were over 10 times higher than the mean annual removals with total aboveground biomass. The content of metals in forest biomass fuel ash was relatively small to compare with their total removals. The findings of this study have an important implications for future practice, i.e. the recommended maximum forest biomass fuel ash dose for the compensating fertilising could be increased with respect to balanced output - input in Lithuania.

KW - Aboveground tree biomass

KW - Biofuel ash

KW - Forest biomass fuel

KW - Metals

KW - Pinus sylvestris

U2 - 10.1016/j.biombioe.2014.03.047

DO - 10.1016/j.biombioe.2014.03.047

M3 - Journal article

AN - SCOPUS:84901444069

SN - 0961-9534

VL - 66

SP - 434

EP - 441

JO - Biomass & Bioenergy

JF - Biomass & Bioenergy

ER -