Pinus pinaster Aiton
(maritime pine): a reliable indicator for delineating areas of anomalous
soil composition for biogeochemical prospecting of Arsenic, Antimony and
Biogeochemical prospecting requires right selection of biological material.
Accurate analysis of sampled materials, elimination or minimization of
errors due to mixup of different plant parts of variable ages are equally
important. The aim of this work is to evaluate the potential of different
age needles and twigs of Pinus pinaster Aiton (maritime pine). P.
pinaster is one of the important indicator species for biogeochemical
prospecting. For this investigation we chose one of the old mining areas
viz. Gatas, East Central Portugal which was contaminated with As, Sb and W.
In this investigation, needles and twigs of different age have been
collected for analysis of metals. It was observed that 2-year-old needes are
the best material for recovery of As, Sb, W. The present work aslo
elucidates the accumulation variation of As, Sb, W in twigs and needles of
P. pinaster of different ages. The results highlight the sampling of
plant parts and their age as important factors for biogeochemical
prospecting. This investigation is based on principal components analysis (PCA).
The data was also subjected to Biogeochemical Anomaly Index (BAI).