Dissolution of wollastonite during the experimental manipulation of Hubbard Brook Watershed 1
dc.contributor.author | Peters, Stephen C. | en_US |
dc.contributor.author | Blum, Joel D | en_US |
dc.contributor.author | Driscoll, Charles T. | en_US |
dc.contributor.author | Likens, Gene E. | en_US |
dc.date.accessioned | 2006-09-08T20:22:57Z | |
dc.date.available | 2006-09-08T20:22:57Z | |
dc.date.issued | 2004-02 | en_US |
dc.identifier.citation | Peters, Stephen C.; Blum, Joel D.; Driscoll, Charles T.; Likens, Gene E.; (2004). "Dissolution of wollastonite during the experimental manipulation of Hubbard Brook Watershed 1." Biogeochemistry 67(3): 309-329. <http://hdl.handle.net/2027.42/42477> | en_US |
dc.identifier.issn | 0168-2563 | en_US |
dc.identifier.issn | 1573-515X | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/42477 | |
dc.description.abstract | Powdered and pelletized wollastonite (CaSiO 3 ) was applied to an 11.8 ha forested watershed at the Hubbard Brook Experimental Forest (HBEF) in northern New Hampshire, U.S.A. during October of 1999. The dissolution of wollastonite was studied using watershed solute mass balances, and a 87 Sr/ 86 Sr isotopic tracer. The wollastonite ( 87 Sr/ 86 Sr = 0.70554) that was deposited directly into the stream channel began to dissolve immediately, resulting in marked increases in stream water Ca concentrations and decreases in the 87 Sr/ 86 Sr ratios from pre-application values of 0.872 mg/L and 0.72032 to values of ∼2.6 mg/L and 0.71818 respectively. After one calendar year, 401 kg of the initial 631 kg of wollastonite applied to the stream channel was exported as stream dissolved load, and 230 kg remained within the stream channel as residual CaSiO 3 and/or adsorbed on streambed exchange sites. Using previously established values for streambed Ca exchange capacity at the HBEF, the dissolution rate for wollastonite was found to be consistent with dissolution rates measured in laboratory experiments. Initially, Ca was released from the mineral lattice faster than Si, resulting in the development of a Ca-depleted leached layer on mineral grains. The degree of preferential Ca release decreased with time and reached stoichiometric proportions after ∼6 months. Using Sr as a proxy for Ca, the Ca from wollastonite dissolution can be accurately tracked as it is transported through the aquatic and terrestrial ecosystems of this watershed. | en_US |
dc.format.extent | 1433339 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Kluwer Academic Publishers; Springer Science+Business Media | en_US |
dc.subject.other | Geosciences | en_US |
dc.subject.other | Geochemistry | en_US |
dc.subject.other | Biochemistry, General | en_US |
dc.subject.other | Soil Science & Conservation | en_US |
dc.subject.other | Terrestrial Pollution | en_US |
dc.title | Dissolution of wollastonite during the experimental manipulation of Hubbard Brook Watershed 1 | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Natural Resources and Environment | en_US |
dc.subject.hlbsecondlevel | Molecular, Cellular and Developmental Biology | en_US |
dc.subject.hlbsecondlevel | Ecology and Evolutionary Biology | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Geological Sciences, University of Michigan, Ann Arbor, 48109, USA (e-mail | en_US |
dc.contributor.affiliationum | Department of Geological Sciences, University of Michigan, Ann Arbor, 48109, USA (e-mail | en_US |
dc.contributor.affiliationother | Department of Civil and Environmental Engineering, Syracuse University, Syracuse, 13244, USA | en_US |
dc.contributor.affiliationother | Institute of Ecosystem Studies, Millbrook, 12545, USA | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/42477/1/10533_2004_Article_5118334.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1023/B:BIOG.0000015787.44175.3f | en_US |
dc.identifier.source | Biogeochemistry | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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