St-DenisMessierKneeshaw2013

Référence

St-Denis, A., Messier, C., Kneeshaw, D.D. (2013) Seed size, the only factor positively affecting direct seeding success in an abandoned field in Quebec, Canada. Forests, 4(2):500-516. (Scopus )

Résumé

Direct tree seeding is potentially an economical technique for restoring forests on abandoned fields. However, the success of tree establishment depends on many factors related to species and seed characteristics, environmental conditions, competition and predation. We compared seedling emergence, survival and growth of six tree species of different seed sizes in a forest restoration project of abandoned fields. Species were seeded in plots with and without herbaceous vegetation and with and without protection from bird and mammal predation. Yellow birch (Betula alleghaniensis) did not emerge in all treatments, paper birch (Betula papyrifera) and tamarack (Larix laricina) had a seedling emergence rate lower than 1%, and sugar maple (Acer saccharum) had a low overall emergence rate of 6%. Seedling emergence reached 57% for northern red oak (Quercus rubra) and 34% for red pine (Pinus resinosa), but survival of oak after one year was much higher (92%) than pine seedlings (16%). Overall, protection from birds and mammals and elimination of the herbaceous vegetation cover had no detectable effects on seedling emergence, survival and height. Nonetheless, red oak seedlings growing in the presence of vegetation had a smaller diameter and shoot biomass and a larger specific leaf area. We conclude that only large seeded species, such as oak, should be used for forest restoration of abandoned fields by direct seeding in our region. © 2013 by the authors.

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@ARTICLE { St-DenisMessierKneeshaw2013,
    AUTHOR = { St-Denis, A. and Messier, C. and Kneeshaw, D.D. },
    TITLE = { Seed size, the only factor positively affecting direct seeding success in an abandoned field in Quebec, Canada },
    JOURNAL = { Forests },
    YEAR = { 2013 },
    VOLUME = { 4 },
    PAGES = { 500-516 },
    NUMBER = { 2 },
    ABSTRACT = { Direct tree seeding is potentially an economical technique for restoring forests on abandoned fields. However, the success of tree establishment depends on many factors related to species and seed characteristics, environmental conditions, competition and predation. We compared seedling emergence, survival and growth of six tree species of different seed sizes in a forest restoration project of abandoned fields. Species were seeded in plots with and without herbaceous vegetation and with and without protection from bird and mammal predation. Yellow birch (Betula alleghaniensis) did not emerge in all treatments, paper birch (Betula papyrifera) and tamarack (Larix laricina) had a seedling emergence rate lower than 1%, and sugar maple (Acer saccharum) had a low overall emergence rate of 6%. Seedling emergence reached 57% for northern red oak (Quercus rubra) and 34% for red pine (Pinus resinosa), but survival of oak after one year was much higher (92%) than pine seedlings (16%). Overall, protection from birds and mammals and elimination of the herbaceous vegetation cover had no detectable effects on seedling emergence, survival and height. Nonetheless, red oak seedlings growing in the presence of vegetation had a smaller diameter and shoot biomass and a larger specific leaf area. We conclude that only large seeded species, such as oak, should be used for forest restoration of abandoned fields by direct seeding in our region. © 2013 by the authors. },
    COMMENT = { Export Date: 20 November 2013 Source: Scopus doi: 10.3390/f4020500 },
    ISSN = { 19994907 (ISSN) },
    KEYWORDS = { Competition, Direct seeding, Growth, Predation, Seed size, Seedling emergence, Survival, Tree, Direct-seeding, Predation, Seed size, Seedling emergence, Survival, Tree, Birds, Competition, Conservation, Growth (materials), Mammals, Restoration, Forestry, abandoned land, environmental conditions, environmental restoration, growth response, restoration ecology, seed size, seedling emergence, seedling establishment, survival, Birds, Competition, Conservation, Forestry, Growth, Mammals, Seeding, Survival, Canada, Quebec [Canada], Acer saccharum, Aves, Betula alleghaniensis, Betula papyrifera, Larix laricina, Mammalia, Pinus resinosa, Quercus rubra },
    OWNER = { Luc },
    TIMESTAMP = { 2013.11.20 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84883298538&partnerID=40&md5=6d670b69204e8899599249c4a0cb77c5 },
}

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