Birch and conifer deadwood favour early establishment and shade tolerance in yellow birch juveniles growing on sugar maple dominated stands
Fecha de publicación2016
MetadatosMostrar el registro completo del ítem
Small-seeded tree species such as yellow birch (YB, Betula alleghaniensis Britt.) require deadwood or mineral soil for their establishment. Although much research has been done comparing YB germination on leaf litter vs. exposed mineral soil, less is known about deadwood as a seedbed and how different
seedbeds affect YB early growth along light availability and size gradients. We examine how three common seedbeds (deadwood, moss cover on deadwood, and mineral soil) affected establishment and growth, biomass partitioning, and morphological traits of YB juveniles growing in the understory of temperate mixed deciduous and coniferous forests in southern Quebec. A total of 274 YB were sampled in four sugar maple (Acer saccharum Marsh.) dominated northern hardwood stands where selective cuts had been applied 6 and 15 years prior to sampling. Over 75% of the YB found on deadwood were on material of birch and conifer origin, although these species made less than 40% of the basal area. YB juveniles growing on deadwood showed traits that improve survival in shade such as reduced height growth for tall plants, higher efficiency in resource capture, and multilayered crowns. Our results demonstrate the importance of deadwood of birch and conifer origin in maintaining an abundant, natural, spatially well-distributed, and multistoried regeneration of YB.
Es parte deCanadian Journal Of Forest Research-Revue Canadienne de Recherche Forestiere, 2016, vol. 46, p. 114-121
Showing items related by title, author, creator and subject.
Linking multiple-level tree traits with biomass accumulation in native tree species used for reforestation in Panama Delagrange, Sylvain; Potvin, Catherine; Messier, Christian; Coll Mir, Lluís (Springer Nature, 2007-12-12)To improve establishment yield and carbon accumulation during reforestation, analyses of species adaptations to local environments are needed. Here we measured, at the individual scale, links between biomass accumulation ...
Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation management techniques Coll Mir, Lluís; Messier, Christian; Delagrange, Sylvain; Berninger, Frank (Institut National de la Recherche Agronomique (INRA)EDP Sciences, 2007-04-11)The effect of different vegetation control methods (mowing and cultivation between plantation rows, herbicide application and cover plant sowing) on hybrid poplar (P. maximowiczii $\times$ balsamifera) growth, biomass ...
Shade tolerance and the functional trait - demography relationship in temperate and boreal forests Améztegui González, Aitor; Paquette, Alain; Shipley, Bill; Heym, Michael; Messier, Christian; Gravel, Dominique (British Ecological Society, 2017)Despite being instrumental in forest ecology, the definition and nature of shade tolerance are complex and not beyond controversy. Moreover, the role it plays in the trait-demography relationship remains unclear. Here, we ...