Model-based investigation on the effects of spatial evenness, and size selection in thinning of Picea abies stands
作者: Peter FranssonUrban NilssonOla LindroosOskar FranklinÅke Brännström
作者单位: 1Department of Mathematics and Mathematical Statistics , Umeå University , Umeå , Sweden
2Southern Swedish Forest Research Centre , Swedish University of Agricultural Sciences , Alnarp , Sweden
3Department of Forest Biomaterials and Technology , Swedish University of Agricultural Sciences , Umeå , Sweden
4Ecosystems Services and Management Program , International Institute for Applied Systems Analysis , Laxenburg , Austria
5Evolution and Ecology Program , International Institute for Applied Systems Analysis , Laxenburg , Austria
刊名: Scandinavian Journal of Forest Research, 2019, Vol.34 (3), pp.189-199
来源数据库: Taylor & Francis Journal
DOI: 10.1080/02827581.2019.1577914
关键词: ThinningIndividual-based modelSpatial distributionForest managementSimulation
原始语种摘要: ABSTRACT(#br)Size and spatial distribution of trees are important for forest stand growth, but the extent to which it matters in thinning operations, in terms of wood production and stand economy, has rarely been documented. Here we investigate how the choice of spatial evenness and tree-size distribution of residual trees impacts wood production and stand economy. A spatially explicit individual-based growth model was used, in conjunction with empirical cost functions for harvesting and forwarding, to calculate net production and net present value for different thinning operations in Norway spruce stands in Northern Sweden. The in silico thinning operations were defined by three variables: (1) spatial evenness after thinning, (2) tree size preference for harvesting, and (3) basal area...
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影响因子:1.065 (2012)

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关键词翻译
关键词翻译
  • spatial 空间的
  • thinning 狭缩
  • selection 选择
  • evenness 均匀度
  • stands 
  • economy 经济
  • preference 优选
  • production 生产
  • empirical 经验的
  • based 基于