Characterization and Heavy Metal Retention Capacity of Soils in Mangrove Forest of the Niger Delta, Nigeria

Autor:	I. F. Adeniyi, A. A. Amusan
Rok vydání:	2005
Předmět:	Soil test biology Ecology Avicennia germinans Soil Science Lessivage Fractionation biology.organism_classification Environmental chemistry Soil water Environmental science Alluvium Leaching (metallurgy) Mangrove Agronomy and Crop Science
Zdroj:	Communications in Soil Science and Plant Analysis. 36:2033-2045
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103620500192225
Popis:	Soils under the main mangrove (Rhizophora racemosa and Avicennia germinans) forest in the Niger Delta, Nigeria, were characterized, and their capacities to retain heavy metals were examined by using soil column leaching experiments, using 20 mg L−1 Cu, 50 mg L−1 Zn, 20 mg L−1 Cd, and 100 mg L−1 Mn solutions. At the end of the leaching experiments, soil samples from each column were divided into two layers (0–5 cm and 5–10 cm) and analyzed for total metal retained. The fractionation of heavy metals in the surface soil samples (0–5 cm) was investigated by the sequential extraction technique. The study showed that the soils were influenced by tidal flow and characterized by the presence of very fine textured, thin (0–5 cm) to moderately thick (10–15 cm) layer of alluvium (mud) on the surface. The fibric soil material beneath the surface mud varies in thickness from about 70 to 100 cm, and beyond the histic layer is the plastic, very sticky, massive clay. In situ, the soils were neutral in reaction (...
Databáze:	OpenAIRE
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