The effect of afforestation in reduction oil pollution (heavy metals)
Authors
Abstract
In order to study the effect of afforestation in reduction oil pollution, one planted area in Dezful, affected by pollutions from Kuwaiti oil-wells burning was employed. Six species, Eucalyptus camaldulensis, Eucalyptus microtheca, Dalbegia sissoo, Acacia salicina, Acacia stenophylla, Populus euphratica were selected. Growth parameters, leaf samples and soil samples from different depths (0-30, 30-60, 60-90cm) under related crown cover of each species were obtained. Results showed a strong relation of tree's characteristics to the ability of decreasing pollution. Native trees such as P. euphratica and D. sissoo are better to exotic species, because of their ability to uptake more soil’s material. Among exotic trees, A. stenophylla species are superior to others. These species have more rules in decreasing of pollution. Investigations on soil in different profiles showed that; E. camaldulensis and D. sissoo are better than others to uptake soil components like Cd. Thus for afforestation in polluted regions P. euphratica, D. sissoo and A. stenophylla are recommended.
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