Modelling predicts positive and negative interactions between three Australian tropical tree species in monoculture and binary mixture
Modelling predicts positive and negative interactions between three Australian tropical tree species in monoculture and binary mixture
复制标题
模型预测单一栽培和二元混合栽培中三种澳大利亚热带树种之间的正向和负向相互作用
DOI：
10.1016/j.foreco.2006.05.028
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发表时间：
2006
影响因子：
3.7
通讯作者：
S. Schmidt
中科院分区：
文献类型：
--
作者：
Daniel G. Manson;J. Hanan;M. Hunt;M. Bristow;P. Erskine;D. Lamb;S. Schmidt
计算机建模有望成为分析和预测混合树种人工林内树木之间相互作用的重要工具。本研究探讨了使用基于个体的机械模型作为设计澳大利亚热带树木混合物种种植园的预测工具。 “空间明确的基于个体的森林模拟器”（SeXI-FS）建模系统用于描述二元混合物种实验中个体树冠的空间相互作用。该三维模型是根据澳大利亚热带地区生长的三种森林树种的现场数据开发和验证的。该模型预测了 Flindersia brayleyana、Eucalyptus pellita 和 Elaeocarpus grandis 的单一栽培和二元混合物之间的相互作用，平均占不同处理中物种表现出的生长变异的 42%。该模型仅需要结构尺寸和耐荫性作为物种参数。通过对现有树木混合物中的相互作用进行建模，该模型预测与单一栽培相比，混合物的生长会增加和减少（7 年时茎体积可达 ±50%）。这种建模方法对于设计混合树木种植园可能有用。
Computer modelling promises to be an important tool for analysing and predicting interactions between trees within mixed species forest plantations. This study explored the use of an individual-based mechanistic model as a predictive tool for designing mixed species plantations of Australian tropical trees. The ‘spatially explicit individually based-forest simulator’ (SeXI-FS) modelling system was used to describe the spatial interaction of individual tree crowns within a binary mixed-species experiment. The three-dimensional model was developed and verified with field data from three forest tree species grown in tropical Australia. The model predicted the interactions within monocultures and binary mixtures of Flindersia brayleyana, Eucalyptus pellita and Elaeocarpus grandis, accounting for an average of 42% of the growth variation exhibited by species in different treatments. The model requires only structural dimensions and shade tolerance as species parameters. By modelling interactions in existing tree mixtures, the model predicted both increases and reductions in the growth of mixtures (up to ±50% of stem volume at 7 years) compared to monocultures. This modelling approach may be useful for designing mixed tree plantations.