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@ARTICLE{Andr:11691,
      author       = {André, F. and Jonard, M. and Ponette, Q.},
      title        = {{B}iomass and nutrient content of sessile oak ({Q}uercus
                      petraea ({M}att.) {L}iebl.) and beech ({F}agus sylvatica
                      {L}.) stem and branches in a mixed stand in southern
                      {B}elgium},
      journal      = {The science of the total environment},
      volume       = {408},
      issn         = {0048-9697},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-11691},
      pages        = {2285 - 2294},
      year         = {2010},
      note         = {Our research was funded by the Accord cadre - Recherche et
                      Vulgarisation Forestieres project (Walloon Region, Regional
                      Ministry of Agriculture, DNF). We wish to thank Engineer A.
                      Barjasse, and the local forester A. Laboureix for giving us
                      access to the site. Field work and sample preparation were
                      carried out by F. Plume, F. Hardy, S. Genevrois, B. Pirard,
                      H. Tricoli and A. Vanacker, and chemical analyses were
                      performed by K. Henin and L. Gerlache. We are also grateful
                      to the editor and the three anonymous reviewers for their
                      constructive comments and suggestions for earlier versions
                      of the manuscript.},
      abstract     = {Accurate estimates of the amounts of nutrients immobilised
                      in the organs and tissues of different tree species are of
                      prime importance to make appropriate tree species selection
                      and determine the harvesting regime that will ensure forest
                      sustainability. Sixteen sessile oaks (Quercus petraea
                      (Matt.) Liebl.) (64-129years; stem diameters: 17-57cm) and
                      twelve beeches (Fagus sylvatica L.) (43-86years; stem
                      diameters: 9-50cm) were destructively sampled from a mixed
                      stand located on an acid brown soil in southern Belgium.
                      Statistical models were developed to investigate the
                      differences in nutrient concentrations between tree species,
                      between aboveground tree compartments of the same species,
                      and between tissues of the same compartment. For stem
                      tissues, vertical concentration profiles were described
                      using a versatile equation. Allometric equations were used
                      to predict biomass and nutrient content of tree compartments
                      based on tree dimensions. Broadly speaking, nutrient
                      concentrations tended to be somewhat higher for oak compared
                      with beech, but the amplitude and the direction of
                      inter-species differences varied greatly, depending on the
                      nutrient and the tree compartment. For both species, living
                      branch nutrient concentrations tended to decrease with
                      increasing branch diameter, except for Ca (oak) and Mg
                      (beech). Nutrient concentrations were consistently higher in
                      bark than in wood; this difference between tissues was quite
                      pronounced for Ca, particularly in the case of oak. The
                      biomass and nutrient content equations were used to
                      investigate the effects of tree species and harvesting
                      regime on nutrient exports at harvesting. For equivalent
                      harvesting scenarios, beech was found to induce higher Mg
                      exports than oak, and inversely for Ca. Assuming stand clear
                      cutting, complete tree harvesting would increase average
                      nutrient exports from $65\%$ (Ca) to $162\%$ (P) compared
                      with a stem-only harvesting scenario. These results provide
                      valuable information in the current context of the more
                      intensive utilization of forest products.},
      keywords     = {Belgium / Biomass / Calcium Compounds: analysis /
                      Environmental Monitoring: methods / Environmental
                      Remediation / Fagus: physiology / Food / Forestry /
                      Magnesium Compounds: analysis / Plant Components, Aerial:
                      chemistry / Quercus: physiology / Species Specificity /
                      Calcium Compounds (NLM Chemicals) / Magnesium Compounds (NLM
                      Chemicals) / J (WoSType)},
      cin          = {ICG-4},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)VDB793},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Environmental Sciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:20231032},
      UT           = {WOS:000277109600001},
      doi          = {10.1016/j.scitotenv.2010.02.040},
      url          = {https://juser.fz-juelich.de/record/11691},
}