Effects of retained trees on tree growth and field vegetation in Pinussylvestris stands in Sweden

References

• Acker , S. A. , Zenner , E. K. and Emmingham , W. H. 1998 . Structure and yield of two-aged stands on the Willamette National Forest, Oregon: Implications for green-tree retention . Canadian Journal of Forest Research , 28 : 749 – 758 .
   Web of Science ®Google Scholar
• Ackzell , L. & Lindgren , D. (1992) . Seed-tree stand: Threat or protection for artificial regeneration? In M. Hagner (Ed.) , Silvicultural alternatives: Proceedings from an internordic workshop , 22–25 June ( Reports 35 , pp. 86 – 95 ). Umeå : Department of Silviculture, Swedish University of Agricultural Sciences .
   Google Scholar
• Birch , K. R. & Johnson , K. N. (1992) . Stand-level wood-production costs of leaving live, mature trees at regeneration harvest in coastal Douglas-fir stands . Western Journal of Applied Forestry , 7 ( 3 ).
   Google Scholar
• Brandel , G. (1990) . Volume functions for individual trees. Scots pine (Pinus sylvestris), Norway spruce (Picea abies), Birch (Betula pendula & Betula pubescens) (Report No. 26) . Garpenberg : Department of Forest Yield Research, Swedish University of Agricultural Sciences . (In Swedish with English summary.)
   Google Scholar
• Edgren , V. & Nylinder , P. (1949) . Functions and tables for computing taper and form quotient inside bark for pine and spruce in northern and southern Sweden. Meddelanden från Statens Skogsforskningsinstitut , 38 ( 7–8 ). (In Swedish with English summary.)
   Google Scholar
• Eklund , B. (1949) . The Swedish Forest Research Institute's machines for measuring annual rings: Their origin, construction and application . Meddelanden från statens skogsforskningsinstitut , 38 ( 5 ). (In Swedish with English summary.)
   Google Scholar
• Forest Stewardship Council A.C. (2000) . Svensk FSC-standard för certifiering av skogsbruk . FSC Trademark .
   Google Scholar
• Hägglund , B. & Lundmark , J. E. (1981) . Handledning i bonitering med Skogshögskolans boniteringssystem . Jönköping : Skogsstyrelsen . (In Swedish.)
   Google Scholar
• Hagner , S. (1962) . Natural regeneration under shelterwood stands . Meddelanden från statens skogsforskningsinstitut , 52 ( 4 ), 263 . (In Swedish with English summary.)
   Google Scholar
• Jakobsson , R. and Elfving , B. 2004 . Development of an 80-year-old mixed stand with retained Pinus sylvestris in northern Sweden . Forest Ecology and Management , 194 : 249 – 258 .
   Web of Science ®Google Scholar
• Kuuluvainen , T. and Pukkala , T. 1989 . Effect of Scots pine seed trees on the density of ground vegetation and tree seedlings . Silva Fennica , 23 : 159 – 167 .
   Google Scholar
• Long , J. N. and Roberts , S.D. 1992 . Growth and yield implications of a “new forestry” silvicultural system . Western Journal of Applied Forestry , 7 : 6 – 9 .
   Google Scholar
• Mang , K. (1956) . Der Fohren-Überhaltbetrieb im FA Lindau . Allgemeine Forstzeitschrift ( 37–38 ), 473 – 475 . (In German.)
   Google Scholar
• Miina , J. and Pukkala , T. 2002 . Application of ecological field theory in distance-dependent growth modelling . Forest Ecology and Management , 161 : 101 – 107 .
   Web of Science ®Google Scholar
• Niemistö , P. , Lappalainen , E. & Isomäki , A. (1993) . Mäntysiemenpuuston kasvu ja taimikon kehitys pitkitetyn lountaisen uudistamisen aikana [Summary: Growth of Scots pine seed bearers and the development of seedlings during a protracted regeneration period] . Folia Forestalia , 826 (26) .
   Google Scholar
• Pan European Forest Certification (2002) . System för certifiering av skogsbruk och virkesflöde . Tekniskt dokument . Pan European Forest Certification 05-1-1 .
   Google Scholar
• Pukkala , T. 1989 . Methods to describe the competition process in a tree stand . Scandinavian Journal of Forest Research , 4 : 187 – 202 .
   Web of Science ®Google Scholar
• Pukkala , T. , Vettenranta , J. , Kolström , T. and Miina , J. 1994 . Productivity of mixed stands of Pinus sylvestris and Picea abies . Scandinavian Journal of Forest Research , 9 : 143 – 153 .
   Web of Science ®Google Scholar
• Rose , C. R. and Muir , P. S. 1997 . Green-tree retention: Consequences for timber production in forests of the Western Cascades, Oregon . Ecological Applications , (7) : 209 – 217 .
   Web of Science ®Google Scholar
• Skogsstyrelsen . 1995 . Skogsvårdslagen: handbok [The Swedish Forestry Act] , Jönköping : Skogsstyrelsen .
   Google Scholar
• Skoklefald , S. (1995) . Naturlig gjenvekst i frötrestillinger av furu [Natural regeneration in seed-tree stands of Scots pine] . Rapport fra Skogforsk , 3 ( 95 ). (In Norwegian with English summary.)
   Google Scholar
• Valkonen , S. , Ruuska , J. and Siipilehto , J. 2002 . Effect of retained trees on the development of young Scots pine stands in southern Finland . Forest Ecology and Management , 166 : 227 – 243 .
   Web of Science ®Google Scholar
• Vanclay , J. K. 1994 . Modelling forest growth and yield: Applications to mixed tropical forests , Copenhagen : CAB International .
   Google Scholar
• Wu , H. I. , Sharpe , J. H. P. , Walker , J. and Penridge , L. K. 1985 . Ecological field theory: A spatial analysis of resource interference among plants . Ecological Modelling , 29 : 215 – 243 .
   Web of Science ®Google Scholar