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Naturlig inväxt av lövträd på åkermark

Johansson, Tord (2014). Naturlig inväxt av lövträd på åkermark. Uppsala: (NL, NJ) > Dept. of Energy and Technology, Sveriges lantbruksuniversitet. Rapport / Institutionen för energi och teknik, SLU ; 081
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Abstract

In the beginning of 1990 a study on ingrowth of broadleaves on abandoned farm land was started. The studied stands were located between latitude 58° and 65° N. Downy birch (Betula pubescens Ehrh.), silver birch (Betula pendula Roth), European aspen (Populus tremula L.), black alder (Alnus glutinosa Gaertner), grey alder (Alnus incana Moench) and sallow (Salix caprea L.) were studied. The stands were 4-36 years old. Maps were made on some stands describing the pattern of the number of trees on different distance from the edge of the farm land from where the mature broadleaf tree spread the seeds or pentrated their roots into the farm land. Amount of biomass per hectare and for the specific stand area are presented. The presented biomass production for the studied species was: 4.7-47.7 tons ha-1 for downy birch; 4.5-174.7 for silver birch; 16.4-221.5 for European aspen; 2.0-136.4 for black alder; 0.9-139.8 for grey alder and 57.7-63.7 tons ha-1 for sallow. The size of the stand area differed: 0.04-2.0 ha. Among the species 2 stands of downy birch produced ≥ 10 tons ha-1; 3 stands of silver birch; 4 stands of European aspen; 2 stands of black alder and 6 stands of grey alder. Some practical implications of the study are discussed.

Authors/Creators:Johansson, Tord
Title:Naturlig inväxt av lövträd på åkermark
Series/Journal:Rapport / Institutionen för energi och teknik, SLU (1654-9406)
Year of publishing :2014
Number:081
Number of Pages:49
Place of Publication:Uppsala
Publisher:Institutionen för energi och teknik, Sveriges lantbruksuniversitet
ISSN:1654-9406
Language:Swedish
Publication Type:Report
Article category:Other scientific
Full Text Status:Public
Agris subject categories.:K Forestry > K10 Forestry production
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Agrovoc terms:alnus glutinosa, betula pubescens, populus tremula, alnus incana, betula pendula, salix caprea, farmland, growth, sweden
Keywords:Biomass, black alder, downy birch, European aspen, farm land, grey alder, ingrowth, sallow, silver birch
URN:NBN:urn:nbn:se:slu:epsilon-e-2413
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2413
ID Code:11800
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:13 Feb 2015 14:42
Metadata Last Modified:08 Sep 2017 09:23

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