REFERENCES
- Aerts , R . 1997 . Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems: A triangular relationship . Oikos , 79 : 439 – 4 .
- Berg , B . 1986 . The influence of experimental acidification on nutrient release and decomposition rates of needles and root litter in the forest floor . For Ecol Manage , 15 : 195 – 21 .
- Black , K , Harbron , C Franklin , M . 1998 . Differences in root longevity of some tree species . Tree Physiol , 18 : 259 – 64 .
- Brett , C T and Waldron , K . 1990 . Physiology and Biochemistry of Plant Cell Walls , London, UK : Unwin Hyman .
- Clemens , S , Palmgren , M G and Krämer , U . 2002 . A long way ahead: Understanding and engineering plant metal accumulation . Trends Plant Sci , 7 : 309 – 1 .
- Cotrufo , M , De Santo , A Alfani , A . 1995 . Effects of urban heavy metal pollution on organic matter decomposition in Quercus ilex L. woods . Environ Pollut , 89 : 81 – 7 .
- Drifmeyer , J E , Cross , F A and Zieman , J C . 1982 . Sorption and desorption of trace elements by Spartina alterniflora detritus . Plant Soil , 66 : 69 – 8 .
- Fogel , R . 1983 . Root turnover and productivity of coniferous forests . Plant Soil , 71 : 75 – 8 .
- Freedman , B and Hutchinson , T . 1980 . Effects of smelter pollutants on forest leaf litter decomposition near a nickel-copper smelter at Sudbury, Ontario . Can J Bot , 58 : 1722 – 36 .
- Fritze , H , Niini , S Mikkola , K . 1989 . Soil microbial effects of a Cu-Ni smelter in south-western Finland . Biol Fertil Soils , 8 : 87 – 94 .
- Gordon , W and Jackson , R . 2000 . Nutrient concentrations in fine roots . Ecology , 81 : 275 – 8 .
- Helmisaari , H-S , Makkonen , K Olsson , M . 1999 . Fine-root growth, mortality and heavy metal concentrations in limed and fertilized Pinus silvestris (L.) stands in the vicinity of a Cu-Ni smelter in SW Finland . Plant Soil , 209 : 193 – 200 .
- Johnson , D . 2002 . Phytocycling of Cu, Ni, Pb and Zn in Northern Forest Ecosystems Impacted by Smelter Emissions , PhD Thesis Guelph, ON, , Canada : University of Guelph .
- Johnson , D and Hale , B . 2004 . White birch (Betula papyrifera Marshall) foliar litter decomposition in relation to trace metal atmospheric inputs at metal-contaminated and uncontaminated sites near Sudbury, Ontario and Rouyn-Noranda, Quebec, Canada . Environ Pollut , 127 : 65 – 7 .
- Kozlov , M , Haukioja , E Bakhtiarov , A . 2000 . Root versus canopy uptake of heavy metals by birch in an industrially polluted area: Contrasting behaviour of nickel and copper . Environ Pollut , 107 : 413 – 20 .
- Majdi , H , Pregitzer , K Morén , A-S . 2005 . Measuring fine root turnover in forest systems . Plant Soil , 276 : 1 – 8 .
- Marschner , H . 1998 . Mineral Nutrition of Higher Plants, , 2nd Edition , New York, NY, , USA : Academic Press .
- McClaugherty , C , Aber , J and Melillo , J . 1984 . Decomposition dynamics of fine roots in forested ecosystems . Oikos , 42 : 378 – 8 .
- McEnroe , N and Helmisaari , H . 2001 . Decomposition of coniferous forest litter along a heavy metal pollution gradient, south-west Finland . Environ Pollut , 113 : 11 – 1 .
- Menzies , N W , Donn , M J and Kopittke , P M . 2007 . Evaluation of extractants for estimation of the phytoavailable trace metals in soils . Environ Pollut , 145 : 121 – 3 .
- Punz , W and Sieghardt , H . 1993 . The response of roots of herbaceous plant species to heavy metals . Environ Exp Bot , 33 : 85 – 9 .
- Ruhling , A and Tyler , G . 1973 . Heavy metal pollution and decomposition of spruce needle litter . Oikos , 24 : 402 – 1 .
- Santantonio , D and Grace , J . 1987 . Estimating fine-root production and turnover from biomass and decomposition data: A compartment-flow model . Can J For Res , 17 : 900 – 8 .
- Sauvé , S . 2001 . “ Speciation of metals in soils ” . In Bioavailability of Metals In Terrestrial Ecosystems: Importance of Partitioning for Bioavailability to Invertebrates, Microbes and Plants , Edited by: Allen , H E . 158 Pensacola, FL, , USA : SETAC Press .
- Staaf , H and Berg , B . 1982 . Accumulation and release of plant nutrients in decomposing Scotch pine needle litter: Long term deposition in a Scotch pine forest . Can J Bot , 60 : 1561 – 8 .
- Topper , K and Kotuby-Amacher , J . 1990 . Evaluation of a closed vessel acid digestion method for plant analysis using inductively coupled plasma spectroscopy . Comm Soil Sci Plant Anal , 21 : 1437 – 55 .