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MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUM

机译：基于热金额模拟桉树植物的生长

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摘要

Among the environmental variables that affect the growth and development of plants, the air temperature is of great importance. In this context, the objectives of this work were to model the growth of eucalyptus seedlings in terms of accumulated degree-days during the production process and model validation. The study was conducted in the forest research nursery of the Department of Forestry, located in Vi?§osa (MG), during the periods of 08/02/2011 to 28/04/2011 and 03/08/2012 to 01/11/2012, making it possible to contemplate seasonal variations in the production cycle. The monitored variables were shoot height, stem diameter, leaf area, root length and fresh and dry biomass. Results showed that it took 1065 degree-days for the production of seedlings and sigmoidal models obtained showed high correlation and Willmott coefficients, indicating good performance for estimating the growth and development of eucalyptus seedlings. This tool has great potential for planning and monitoring the production of eucalyptus seedlings in nurseries.
机译：在影响植物生长和发展的环境变量中，空气温度具有重要意义。在这种情况下，这项工作的目标是在生产过程和模型验证期间模拟桉树幼苗的生长。该研究是在林业部的森林研究托儿所进行，位于VI？§Osa（MG），于08/02/2011至2011年08/04/2011和03/08/2012至01/11 2012年，可以考虑生产周期的季节性变化。受监测的变量是芽高，茎直径，叶面积，根长和新鲜干燥的生物质。结果表明，幼苗的生产需要1065度 - 天数，所得赛族模型显示出高的相关性和Willmott系数，表明估算桉树幼苗的生长和发育的良好性能。该工具具有规划和监测苗圃中桉树幼苗生产的巨大潜力。

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