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Small-scale spatial variation in forest soil properties and its implications for sampling procedures

Troedsson, Tryggve and Tamm, Carl olof (1969). Small-scale spatial variation in forest soil properties and its implications for sampling procedures. Technical Report. Stockholm: Predecessors to SLU > Royal School of Forestry, Sveriges lantbruksuniversitet. Studia forestalia Suecica ; 74
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Abstract

Soil samples from the various horizons have been collected from points in a square lattice in two areas representing typical Swedish forest types, at Garpenberg (60°27' lat.N, Dalarna) and Vindeln (64°17' lat. N, Västerbotten). The samples were analysed for N, P, K and loss on ignition, and the values obtained were expressed both as percentages and per unit area. The conclusion to be drawn from the results is that to obtain good precision in analytical values, it is necessary to take a greater number of samples when the results are expressed in weight per unit area than when they are expressed in percentages by weight. As a rule, it is necessary to use samples from at least 10-15 points (often more)-aggregated to a composite sample-to depress the coefficient of variation below 10 per cent for the values per unit area of the studied elements. The paper also contains tables showing the distribution of these elements in the profiles examined.

Authors/Creators:Troedsson, Tryggve and Tamm, Carl olof
Title:Small-scale spatial variation in forest soil properties and its implications for sampling procedures
Series/Journal:Studia forestalia Suecica (0039-3150)
Year of publishing :1969
Number:74
Number of Pages:30
Place of Publication:Stockholm
Publisher:Skogshögskolan
ISSN:0039-3150
Language:English
Publication Type:Report
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production
Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Soil science
Keywords:forest soils, sampling procedures, Sweden
URN:NBN:urn:nbn:se:slu:epsilon-9-124
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-9-124
ID Code:5822
Department:Predecessors to SLU > Royal School of Forestry
Deposited By: Skogsbiblioteket Umeå
Deposited On:07 Mar 2011 00:00
Metadata Last Modified:26 Nov 2015 14:26

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