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Research on retention forestry in Northern Europe

Ecological Processes 2020年第1期9卷 33-45页

作者： Lena Gustafsson Mats Hannerz Matti Koivula Ekaterina Shorohova Ilkka Vanha-Majamaa Jan Weslien Department of Ecology Swedish University of Agricultural SciencesP.O Box 7044SE-75007 UppsalaSweden Silvinformation AB Bergauddsvägen 22BSE-39359 KalmarSweden School of Forest Sciences University of Eastern FinlandP.O.Box 111FI-80101 JoensuuFinland Forest Research Institute of the Karelian Research Centre Russian Academy of SciencesPushkinskaya str.11Petrozavodsk 185910Russia Natural Resources Institute Finland(Luke) Latokartanonkaari 9FI-00790 HelsinkiFinland Saint-Petersburg State Forest Technical University Institutsky str.5Saint Petersburg 194021Russia The Forestry Research Institute of Sweden(Skogforsk) SE-75183 UppsalaSweden.

Retention approaches in forest management are today common in several North European countries,integrated into the clearcutting practice as a way to promote biodiversity and maintain ecosystem *** green trees and retention patches(tree groups)are retained at final harvest,and deadwood is left at site or ***,we review research on retention in Sweden,Finland,Norway,the Baltic States,and NW Russia,with special focus on *** the first publication in 1994,about 180 peer-reviewed articles have been *** present results from a systematic search of the retention literature,separated into the following topics:buffer zones,retention patches,high stumps,other types of deadwood,European aspen Populus tremula,and *** literature is synthesized separately since studies from this region have so far almost exclusively been published in the Russian ***,we describe six ongoing large-scale,replicated experiments with varying retention levels,five in Finland and one in Sweden,and summarize their main *** main conclusions for practice from the literature and experiments are that retention patches as large as 0.5 ha and 10-mwide buffers to watercourses are not enough to maintain pre-harvest species composition but survival of forest species is still larger than on conventional *** on clearcuts may present important habitats to saproxylic species,including rare and red-listed ones and a prioritization of tree species per stand is *** identify several important future research directions including switch of focus towards the landscape as well as the species population *** in parts of European Russia where retention has been unintentionally implemented already for a century would indicate possible future trajectories of biodiversity and their drivers in other regions of Northern Europe.A stronger link to ecological theory would help in study designs and in th

关键词： Biodiversity buffer strips Conservation Deadwood Experiments Forestry High stumps Retention patches Variable retention

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