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Effects of nitrogen fertilization on the abundance of enchytraeids and microarthropods in Scots pine forests

Lohm, Ulrik and Lundqvist, Heléne and Persson, Tryggve and Wirén, Anders (1977). Effects of nitrogen fertilization on the abundance of enchytraeids and microarthropods in Scots pine forests. Stockholm: UNSPECIFIED, Sveriges lantbruksuniversitet. Studia forestalia Suecica ; 140
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Abstract

The effect on the abundance of enchytraeids and microarthropods of the nitrogen fertilizers, ammonium nitrate and urea, was studied. The experimental sites were three Scots pine stands in central and northern Sweden. Doses of fertilizers were similar to those used in practical forestry in Sweden but the effects of different doses of ammonium nitrate were also investigated. A significant decrease in the abundance of Enchytraeidae, Collembola and Cryptostigmata after ammonium nitrate fertilization was observed in one of the experiments. On the basis of this study and previous investigations, the following patterns of response to nitrogen fertilizers are discussed: 1) A shortterm effect with decreased abundance owing to ammonium toxicity or a "salt effect". 2) A long-term effect with increasing abundance resulting from increased food supply.

Authors/Creators:Lohm, Ulrik and Lundqvist, Heléne and Persson, Tryggve and Wirén, Anders
Title:Effects of nitrogen fertilization on the abundance of enchytraeids and microarthropods in Scots pine forests
Series/Journal:Studia forestalia Suecica (0039-3150)
Year of publishing :1977
Number:140
Number of Pages:23
Place of Publication:Stockholm
Publisher:Skogshögskolan
ISBN for printed version:91-38-03733-5
ISSN:0039-3150
Language:English
Publication Type:Report
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Plant and forest protection
Keywords:nitrogen fertilization, enchytraeids, microarthropods, Scots pine
URN:NBN:urn:nbn:se:slu:epsilon-9-58
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-9-58
ID Code:5516
Faculty:S - Faculty of Forest Sciences
Deposited By: Skogsbiblioteket Umeå
Deposited On:19 Jan 2011 00:00
Metadata Last Modified:21 Dec 2015 10:07

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