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The potential impact of intensification on forest productivity under different climate change scenarios

机译：不同气候变化情景下加强对森林生产力的潜在影响

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The intensification of forest management, using fast-growing species well-adapted to future climate conditions is seen as a solution to guarantee a sustainable increase in the domestic timber production, while avoiding or minimising any risks associated with climate change. This paper reports on the findings of a research project that assessed the productivity of Sitka spruce (Picea sitchensis) on a range of site types under different climate change scenarios and stand density control methods (i.e. planting spacings and thinning intensities). To this end, an integrated approach was developed through a link between the Irish dynamic yield models (Growfor) and the CLIMADAPT software, the Irish Ecological Site Classification System.The results show that Sitka spruce is likely to produce yield class 14 or greater in most of Ireland by the end of the century, although its growth rate is expected to decrease in many parts of the country, especially in the south-east and some areas in the western regions, and alternative species may have to be used there. In general terms, stands planted at close spacings (1.7 m square) and thinned at light intensities (60-80% of marginal thinning intensity (MTI)), using a 5-year thinning cycle, would produce the greatest volume. When the management objective was to maximise the profitability rather than yield, applying light thinning intensities (up to the MTI) and planting a 3 m square was the best approach.
机译：森林管理的加剧，利用快速增长的物种适应未来的气候条件被视为保证国内木材生产可持续增长的解决方案，同时避免或最大限度地减少与气候变化相关的任何风险。本文报告了一个研究项目的调查结果，评估了Sitka云杉（Picea梭子）在不同气候变化场景和支架密度控制方法下的一系列场地类型的生产力（即种植间隔和稀疏强度）。为此，通过爱尔兰生态站点分类系统的爱尔兰动态产量模型（Growfor）和Climadapt软件之间的联系开发了一种综合方法。结果表明，Sitka云杉最多可能产生14级或更大的产量在世纪末的爱尔兰，尽管其增长率预计在该国的许多地方减少，特别是在西南部和西部地区的某些地区，但可能需要在那里使用替代物种。一般而言，在近距离间距（1.7米平方）以闭合间距（1.7米平方）的展台（60-80％的边际稀释强度（MTI）），使用5年减薄循环，将产生最大的体积。当管理目标是最大限度地提高盈利能力而不是收益率，施加轻薄稀释强度（直到MTI）并种植3米平方是最好的方法。

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