Tree species diversity and ecosystem function: Can tropical multi-species plantations generate greater productivity?
Tree species diversity and ecosystem function: Can tropical multi-species plantations generate greater productivity?
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DOI：
10.1016/j.foreco.2006.05.013
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发表时间：
2006-09-15
影响因子：
3.7
通讯作者：
Bristow, Mila
中科院分区：
文献类型：
--
作者：
Erskine, Peter D.;Lamb, David;Bristow, Mila
澳大利亚潮湿热带地区的结果表明，多样化种植园可以比单一种植园获得更高的生产力。我们发现，观察到的物种数量和有效物种丰富度的增加与通过林分断面积或平均单树断面积衡量的生产力水平的提高显着相关。五种人工林树种中，有四种与其他树种混合种植比单一种植的生产力更高，平均树木断面积增加了 55%。一般线性模型表明，当模型中包含环境变量时，物种丰富度对平均单树断面积有显着影响。由于单一栽培种植园目前是整个热带地区首选的重新造林方法，这些结果表明，如果更广泛地推行多品种种植园，可以取得显着的生产力和生态效益。 (c) 2006 Elsevier B.V. 保留所有权利。
Results from the humid tropics of Australia demonstrate that diverse plantations can achieve greater productivity than monocultures. We found that increases in both the observed species number and the effective species richness were significantly related to increased levels of productivity as measured by stand basal area or mean individual tree basal area. Four of five plantation species were more productive in mixtures with other species than in monocultures, offering on average, a 55% increase in mean tree basal area. A general linear model suggests that species richness had a significant effect on mean individual tree basal area when environmental variables were included in the model. As monoculture plantations are currently the preferred reforestation method throughout the tropics these results suggest that significant productivity and ecological gains could be made if multi-species plantations are more broadly pursued. (c) 2006 Elsevier B.V. All rights reserved.