Nutrient stores and dynamics of woody detritus in a boreal forest: modeling potential implications at the stand level Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/zs25x9017

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Concentrations of 14 chemical elements (Al, B, C, Ca, Cu, Fe, K, N, Mg, Mn, Na, P, S, Zn) were measured in wood and bark of 126 sample trees representing different stages of decomposition in three major tree species of northwestern Russia: Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies (L.) Karst.), and birch (Betula pendula Roth.). Changes in nutrient stores in decay classes were calculated with adjustments for the loss of density and volume by dead trees. Although the concentration of many nutrients increased relative to the estimated initial level, the total amount of most nutrients contained in dead trees declined with decay. For example, nitrogen stores declined from decay class 1 to 4 by 45% for birch, 39% for spruce, and by 60% for pine. The rate and pattern of these losses varied by nutrient and by species and were primarily related to the patterns of bark loss. Pine lost bark early in the process of decomposition and released many essential nutrients (i.e., N, P, Ca) at the early stages, while birch retained most of its bark throughout the decomposition process and lost nutrients more gradually. The temporal dynamics of N, Ca, and K loss in pine were examined using a chronosequence approach, and the results were used in stand-level modeling. The analysis of modeling results suggests that, in northwestern Russia, post-disturbance release of nutrients from woody detritus can potentially supply a large proportion of the net N, Ca, and K accumulation in live forest biomass.
Resource Type
Date Available
Date Issued
Citation
  • Olga N. Krankina, Mark E. Harmon, and Anatolii V. Griazkin. 1999. Nutrient stores and dynamics of woody detritus in a boreal forest: modeling potential implications at the stand level. Can. J. For. Res. 29: 20–32.
Academic Affiliation
Series
Rights Statement
Publisher
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2010-02-27T01:22:12Z (GMT). No. of bitstreams: 1 99Krankina_etal.pdf: 135581 bytes, checksum: 028606de038a56eaa6e32318331ada67 (MD5) Previous issue date: 1999
  • description.provenance : Submitted by Alexa Pinckard (pinckara@onid.orst.edu) on 2010-02-26T23:00:54Z No. of bitstreams: 1 99Krankina_etal.pdf: 135581 bytes, checksum: 028606de038a56eaa6e32318331ada67 (MD5)
  • description.provenance : Approved for entry into archive by Caryn Davis(caryn.davis@oregonstate.edu) on 2010-02-27T01:22:12Z (GMT) No. of bitstreams: 1 99Krankina_etal.pdf: 135581 bytes, checksum: 028606de038a56eaa6e32318331ada67 (MD5)

Relationships

In Administrative Set:
Last modified: 07/07/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items