Further Reading

Berner EK and Berner RA (1996) Global Environment: Water, Air and Geochemical Cycles, 376pp. Upper Saddle River, NJ: Prentice Hall, Inc

Bullen TD and Bailey SW (2005) Identifying calcium sources at an acid deposition-impacted spruce forest: A strontium isotope, alkaline earth element multi-tracer approach. Biogeochemistry 74: 63-99.

De La Rocha CL and DePaolo DJ (2000) Isotopic evidence for variations in the marine Ca cycle over the Cenozoic. Science 289: 1176-1178.

Driscoll CT, Lawrence GB, Bulger AJ, et al. (2001) Acidic deposition in the northeastern United States: Sources and inputs, ecosystem effects, and management strategies. Bioscience 51: 180-198.

Hoff CJ, Bryce JG, Hobbie EA, Colpaert JV, and Bullen TD (2005) Quantification of calcium isotope fractionation in ectomycorrhizal trees. Eos: Transactions of the American Geophysical Union 86: Fall Meeting Supplement, Abstract B53B-05.

Huntington T (2000) The potential for calcium depletion in forest ecosystems of southeastern United States: Review and analysis. Global Biogeochemical Cycles 14: 623-638.

Langdon C, Takahashi T, Sweeney C, et al. (2000) Effect of calcium carbonate saturation state on the calcification rate of an experimental reef. Global Biogeochemical Cycles 14: 639-654.

Lawrence GB and Huntington TG (1999) Soil-calcium depletion linked to acid rain and forest growth in the eastern United States. USGS WRIR 98-4267.

Likens GE, Driscoll CT, Buso DC, et al. (1998) The biogeochemistry of calcium at Hubbard Brook. Biogeochemistry 41: 89-173.

McLaughlin SB and Wimmer R (1999) Calcium physiology and terrestrial ecosystem processes. New Phytologist 142: 373-417.

Orr JC (2005) Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms. Nature 437: 681-686.

Raven J, Caldeira K, Elderfield H, etal. (2005) Ocean Acidification Due to Increasing Atmospheric Carbon Dioxide. Policy Document 12/05 of The Royal Society. London: The Royal Society.

Schaberg PG, DeHayes DH, and Hawley GJ (2001) Anthropogenic calcium depletion: A unique threat to forest ecosystem health? Ecosystem Health 7: 214-228.

White PJ and Broadley MR (2003) Calcium in plants. Annals of Botany 92: 487-511.

Yanai RD, Blum JD, Hamburg SP, et al. (2005) New insights into calcium depletion in northeastern forests. Journal of Forestry 103: 14-20.

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