Document Detail

Understorey vegetation stability and dynamics in unmanaged boreal forests along a deposition gradient in Sweden.
MedLine Citation:
PMID:  22201002     Owner:  NLM     Status:  MEDLINE    
The aims of this study were to investigate spatial patterns and temporal changes in understorey vegetation at four forest catchments forming a depositional gradient. Inventories of the bottom and field layers were carried out in the 1990s and repeated after 5-14 years, depending on catchment. It was hypothesized that changes and patterns in ground vegetation would be related to changes and patterns in N and S deposition. The data were analyzed using Ellenberg indices and multivariate methods. All catchments showed temporal changes in species composition. Analyses of the bottom layer were confounded by a change of field staff, but after accounting for this observer effect, differences in species composition between the catchments remained. Within catchments, the changes in species composition were unrelated to N or S deposition. Relationships between environmental factors, expressed as Ellenberg indices, and compositional patterns differed between catchments although Ellenberg indices showed small temporal changes.
Ulf Grandin
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Ambio     Volume:  40     ISSN:  0044-7447     ISO Abbreviation:  Ambio     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-27     Completed Date:  2012-03-13     Revised Date:  2013-06-26    
Medline Journal Info:
Nlm Unique ID:  0364220     Medline TA:  Ambio     Country:  Sweden    
Other Details:
Languages:  eng     Pagination:  867-77     Citation Subset:  IM    
Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Box 7050, 750 07 Uppsala, Sweden.
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MeSH Terms
Environmental Monitoring*
Nitrogen / analysis
Sulfur / analysis
Reg. No./Substance:
7704-34-9/Sulfur; 7727-37-9/Nitrogen

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