Title: Response of sugar maple to calcium addition to northern hardwood forest
Author: Juice, Stephanie M.; Fahey, Timothy J.; Siccama, Thomas G.; Driscoll, Charles T.; Denny, Ellen G.; Eagar, Christopher; Cleavitt, Natalie L.; Minocha, Rakesh; Richardson, Andrew D.
Source: Ecology. 87: 1267-1280.
Publication Series: Scientific Journal (JRNL)
Description: Watershed budget studies at the Hubbard Brook Experimental Forest (HBEF), New Hampshire, USA, have demonstrated high calcium depletion of soil during the 20th century due, in part, to acid deposition. Over the past 25 years, tree growth (especially for sugar maple) has declined on the experimental watersheds at the HBEF. In October 1999, 0.85 Mg Ca/ha was added to Watershed 1 (W1) at the HBEF in the form of wollastonite (CaSiO3), a treatment that, by summer 2002, had raised the pH in the Oie horizon from 3.8 to 5.0 and, in the Oa horizon, from 3.9 to 4.2. We measured the response of sugar maple to the calcium fertilization treatment on W1. Foliar calcium concentration of canopy sugar maples in W1 increased markedly beginning the second year after treatment, and foliar manganese declined in years four and five. By 2005, the crown condition of sugar maple was much healthier in the treated watershed as compared with the untreated reference watershed (W6). Following high seed production in 2000 and 2002, the density of sugar maple seedlings increased significantly on W1 in comparison with W6 in 2001 and 2003.
Keywords: Acer saccharum, acid deposition, calcium, forest decline, Hubbard Brook, manganese, mycorrhizae, soil acidification, stress physiology, sugar maple
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
XML: View XML
Juice, Stephanie M.; Fahey, Timothy J.; Siccama, Thomas G.; Driscoll, Charles T.; Denny, Ellen G.; Eagar, Christopher; Cleavitt, Natalie L.; Minocha, Rakesh; Richardson, Andrew D. 2006. Response of sugar maple to calcium addition to northern hardwood forest. Ecology. 87: 1267-1280.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility