Decreased water flowing from a forest amended with calcium silicate

Mark B. Green, Amey S. Bailey, Scott W. Bailey, John J. Battles, John L. Campbell, Charles T Driscoll, Timothy J. Fahey, Lucie C. Lepine, Gene E. Likens, Scott V. Ollinger, Paul G. Schaberg

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Acid deposition during the 20th century caused widespread depletion of available soil calcium (Ca) throughout much of the industrialized world. To better understand how forest ecosystems respond to changes in a component of acidification stress, an 11.8-ha watershed was amended with wollastonite, a calcium silicate mineral, to restore available soil Ca to preindustrial levels through natural weathering. An unexpected outcome of the Ca amendment was a change in watershed hydrology; annual evapotranspiration increased by 25%, 18%, and 19%, respectively, for the 3 y following treatment before returning to pretreatment levels. During this period, the watershed retained Ca from the wollastonite, indicating a watershed-scale fertilization effect on transpiration. That response is unique in being a measured manipulation of watershed runoff attributable to fertilization, a response of similar magnitude to effects of deforestation. Our results suggest that past and future changes in available soil Ca concentrations have important and previously unrecognized implications for the water cycle.

Original languageEnglish (US)
Pages (from-to)5999-6003
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume110
Issue number15
DOIs
StatePublished - Apr 9 2013

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Calcium
Water
Soil
Fertilization
Water Cycle
Hydrology
Conservation of Natural Resources
Minerals
Ecosystem
calcium silicate
Forests
Acids

ASJC Scopus subject areas

  • General

Cite this

Decreased water flowing from a forest amended with calcium silicate. / Green, Mark B.; Bailey, Amey S.; Bailey, Scott W.; Battles, John J.; Campbell, John L.; Driscoll, Charles T; Fahey, Timothy J.; Lepine, Lucie C.; Likens, Gene E.; Ollinger, Scott V.; Schaberg, Paul G.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 110, No. 15, 09.04.2013, p. 5999-6003.

Research output: Contribution to journalArticle

Green, MB, Bailey, AS, Bailey, SW, Battles, JJ, Campbell, JL, Driscoll, CT, Fahey, TJ, Lepine, LC, Likens, GE, Ollinger, SV & Schaberg, PG 2013, 'Decreased water flowing from a forest amended with calcium silicate', Proceedings of the National Academy of Sciences of the United States of America, vol. 110, no. 15, pp. 5999-6003. https://doi.org/10.1073/pnas.1302445110
Green, Mark B. ; Bailey, Amey S. ; Bailey, Scott W. ; Battles, John J. ; Campbell, John L. ; Driscoll, Charles T ; Fahey, Timothy J. ; Lepine, Lucie C. ; Likens, Gene E. ; Ollinger, Scott V. ; Schaberg, Paul G. / Decreased water flowing from a forest amended with calcium silicate. In: Proceedings of the National Academy of Sciences of the United States of America. 2013 ; Vol. 110, No. 15. pp. 5999-6003.
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