%0 Journal Article %1 bella1971competition %A Bella, I. E. %D 1971 %J Forest Science %K competition_kernel forestry spatial_ecology %N 3 %P 364-372 %R 10.1093/forestscience/17.3.364 %T A New Competition Model for Individual Trees %U https://doi.org/10.1093/forestscience/17.3.364 %V 17 %X The model represents mathematically competitive interaction between individual trees. It consists of two basic components: (1) the influence zone of each tree (which is a function of its size) and (2) the amount and nature of interaction (which depends on the distance between and relativesize of the competing tree and its competitors and also on a power of relative tree sizes). Optimum model parameters were obtained by iterative procedures on a computer, combined with regression analyses for pure, even-aged, fully stocked stands of Douglas-fir (Pseudotsuga menziesii (Mirb.)Franco), jack pine (Pinus banksiana Lamb.), red pine (P. resinosa Ait.), and aspen (Populus tremuloides Michx.) and for an even-aged stand of Eucalyptus spp. growing at a range of stand densities. The model satisfactorily described competition effect for the five stands studied and accountedfor a greater portion of variation in tree growth than some of the earlier competition indices. Forest Sci. 17:364-372.

@article{bella1971competition, abstract = {{The model represents mathematically competitive interaction between individual trees. It consists of two basic components: (1) the influence zone of each tree (which is a function of its size) and (2) the amount and nature of interaction (which depends on the distance between and relativesize of the competing tree and its competitors and also on a power of relative tree sizes). Optimum model parameters were obtained by iterative procedures on a computer, combined with regression analyses for pure, even-aged, fully stocked stands of Douglas-fir (Pseudotsuga menziesii (Mirb.)Franco), jack pine (Pinus banksiana Lamb.), red pine (P. resinosa Ait.), and aspen (Populus tremuloides Michx.) and for an even-aged stand of Eucalyptus spp. growing at a range of stand densities. The model satisfactorily described competition effect for the five stands studied and accountedfor a greater portion of variation in tree growth than some of the earlier competition indices. Forest Sci. 17:364-372.}}, added-at = {2023-12-30T01:44:40.000+0100}, author = {Bella, I. E.}, biburl = {https://www.bibsonomy.org/bibtex/2cc96fdff3cf9e87b4de8c2d387edc78b/peter.ralph}, doi = {10.1093/forestscience/17.3.364}, eprint = {https://academic.oup.com/forestscience/article-pdf/17/3/364/23064211/forestscience0364.pdf}, interhash = {ed1556ba0a1939057754e49df033c5ff}, intrahash = {cc96fdff3cf9e87b4de8c2d387edc78b}, issn = {0015-749X}, journal = {Forest Science}, keywords = {competition_kernel forestry spatial_ecology}, month = {09}, number = 3, pages = {364-372}, timestamp = {2023-12-30T01:44:40.000+0100}, title = {A New Competition Model for Individual Trees}, url = {https://doi.org/10.1093/forestscience/17.3.364}, volume = 17, year = 1971 }