MSpace - DSpace at UofM >
Faculty of Graduate Studies (Electronic Theses and Dissertations) >
Manitoba Heritage Theses >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1993/5845

Title: Net primary productivity and peat accumulation in Southeastern Manitoba
Authors: Reader, Richard Joel
Issue Date: 1971
Abstract: Two functional attributes of an ecosystem, net primary production and subsequent dry matter accumulation, were examined in four peatland types (lagg, bog, muskeg, and bog forest) located in southeastern Manitoba. The simple equation "accumulation = income - loss" was expanded in a block diagram to define all potential sources of both income and loss. Annual "income" of litter in the four vegetation zones ranged from 489 to 1750 gm./m.2, which represented 69-90% of the calculated net primary production. "Loss" of dry matter through decomposition in the following year amounted to approximately one quarter of the litter value. Using radiocarbon-dated peat cores, an average annual accumulation rate of 26-51 gm./m.2/yr. was calculated, suggesting that less that ten percent of the annual net primary production will remain as peat. The four vegetation types examined were considered to represent seral stages in the process of secondary succession occurring in the study area. The direction of this succession was hypothesized to be Lagg -> Bog -> Muskeg -> Bog Forest.
URI: http://hdl.handle.net/1993/5845
Other Identifiers: ocm72799972
Appears in Collection(s):FGS - Electronic Theses & Dissertations (Public)
Manitoba Heritage Theses

Files in This Item:

File Description SizeFormat
Reader_Net_primary.pdf18.11 MBAdobe PDFView/Open
View Statistics

Items in MSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! MSpace Software Copyright © 2002-2010  Duraspace - Feedback