You are here: Home
/ Publication Information
Title: Adaptation to exploit nitrate in surface soils predisposes yellow-cedar to climate-induced decline while enhancing the survival of western redcedar: a new hypothesis
Author: D'Amore, David V.; Hennon, Paul E.; Schaberg, Paul G.; Hawley, Gary J.;
Source: Forest Ecology and Management. 258: 2261-2268.
Publication Series: Scientific Journal (JRNL)
Description: Yellow-cedar (Chamaecyparis nootkatensis (D. Don) Spach) and western redcedar (Thuja plicata Donn), two valuable tree species of Pacific Northwest forests, are competitive in low productivity forests on wet, nearly saturated soils with low nitrogen (N) availability and turnover. We propose a mechanism where cedar trees survive in marginal conditions through exploiting a coupled Ca-NO3-nutrient cycle where trees assimilate N as nitrate (NO3-), butmust accumulate a counter-ion to NO3- such as calcium (Ca+2) to control their internal cell pH and provide electrochemical balance. The availability of NO3- in cedar forests is favored by increased microbial activity and shifts in microbial community composition that is conducive to N mineralization and nitrification at higher pH. Cedars influence the soils under their canopy by enriching the forest floor with calciumcompounds leading to increases in pH.
Keywords: calcium, climate change, chamaecyparis nootkatensis, Thuja plicata, forest decline
- 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
D'Amore, David V.; Hennon, Paul E.; Schaberg, Paul G.; Hawley, Gary J. 2009. Adaptation to exploit nitrate in surface soils predisposes yellow-cedar to climate-induced decline while enhancing the survival of western redcedar: a new hypothesis. Forest Ecology and Management. 258: 2261-2268.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility