Management of soils weakly polluted by heavy metals | Gestion des sols faiblement pollues par des metaux lourds
1997
Coullery, P. (Ecole polytechnique federale de Lausanne (EPFL), Lausanne (Switzerland). IATE-Pedologie)
Several field crops have been cultivated on heavy metal polluted soils, in order to evaluate the risks they can imply for man, animals or plants. Wheat proved able to accumulate Cd strongly, even on alkaline soil. It thus implies a risk for man, even on a weakly polluted site. Cultivation of leaf vegetables on acid Cd polluted soil can also imply a risk for man. The amount of Pb in plants was very low, except in some cabbage lettuces, which accumulated Pb in a totally unpredictable way. A plant could contain as much as 250 times more Pb than its neighbour. Phytotoxicity problems have appeared on cereals in a Cu polluted former vineyard. On another Cu richer site, no problems arose. This absence of phytotoxicity was due to a higher amount of organic matter. No problem was noted with Ni or Zn polluted soils
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Эту запись предоставил Agroscope Reckenholz-Tänikon Research Station