Description
Book SynopsisWhile not all metals in Soil--plant systems are inherently toxic, particularly in low concentrations, there is an increasing incidence of metal pollution from aerial fallout, spoils, wastes and agricultural amendments including sewage sludge. Toxic Metals in Soil--Plant Systems discusses the processes of trace-metal cycling in contaminated ecosystems under conditions where their concentrations become toxic through high loading rates, long-term exposure or altered environmental conditions. Other environmental and pedological concentration mechanisms are discussed, including cation exchange and anion adsorption onto different soil materials. The book is divided into two sections; the first part discusses the sources and fates of metals in ecosystems, with an up-to-date review of the processes which control metal speciation in soils, metal uptake mechanisms, and plant responses to toxic metal concentrations in soils. A clear understanding of these processes and their interactions in soil
Table of ContentsPartial table of contents:
THEORY AND PROCESSES.
Sources and Forms of Potentially Toxic Metals in Soil-Plant Systems(S. Ross).
Retention, Transformation and Mobility of Toxic Metals in Soils (S.Ross).
Toxic Metals: Fate and Distribution in Contaminated Ecosystems (S.Ross).
CASE STUDIES.
Mechanisms of Ecosystem Recovery Following 11 Years of NutrientEnrichment in an Old-Field Community (S. Brewer, et al.).
The Impact and Fate of Heavy Metals in an Oak Woodland Ecosystem(M. Martin & R. Bullock).
Caesium Cycling in Heather Moorland Ecosystems (A. Horrill & G.Clint).
A Metal Budget for a Monsoonal Wetland in Northern Australia (C.Finlayson).
Index.
