Boreal and Temperate Trees in a Changing Climate: Modelling by Heikki Hänninen PDF

By Heikki Hänninen

ISBN-10: 9401775478

ISBN-13: 9789401775472

ISBN-10: 9401775494

ISBN-13: 9789401775496

This ebook offers an summary of the way boreal and temperate tree species have tailored their annual improvement cycle to the seasonally various weather conditions. for that reason, the frost hardy dormant part, and the vulnerable development section, are synchronized with the seasonality of the climate.

the amount discusses the once a year cycle, together with quite a few attributes akin to timing of bud burst and different phenological occasions, seasonality of photosynthetic skill or the frost hardiness of the trees.

over the last few a long time dynamic ecophysiological versions were used more and more in reports of the once a year cycle, quite whilst projecting the ecological results of weather swap. the most emphasis of this quantity is on combining modelling with experimental reviews, and at the value of the organic realism of the models.

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Additional info for Boreal and Temperate Trees in a Changing Climate: Modelling the Ecophysiology of Seasonality

Example text

3d). 3 The Modelling Principle 25 This procedure is repeated for all days, and the curve for the accumulated temperature sum is obtained as a result (Fig. 3d). For each day, the value of the rate variable from Fig. 3c is identical to the slope of the line representing the increase in Sdd during that day in Fig. 3d. Thus the state variable Sdd stays constant during days 1–5 and again during days 14–16 (Fig. 3d), when the rate variable Rdd has the value of zero (Fig. 3c). In the example illustrated in Fig.

5 Quantitative Dormancy Induction . . . . . . . . . . . . . . . . . . . . . . . . 6 Alternative Modelling Approaches . . . . . . . . . . . . . . . . . . . . . . . . 1 Ecophysiological, Phenological, and Intermediate Approach . . . . . 2 Mechanistic Models . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 The Unified Model of Growth Onset . . . . . . . . . . . . . . . . . . © Springer Science+Business Media Dordrecht 2016 H.

A. Tigerstedt, P. Puttonen, & V. ), Crop physiology of forest trees (pp. 153–166). Helsinki: Helsinki University Press. Chuine, I. (2000). A unified model for budburst of trees. Journal of Theoretical Biology, 207, 337–347. , & Rousseau, D. D. (1998). Fitting models predicting dates of flowering of temperate-zone trees using simulated annealing. Plant, Cell and Environment, 21, 455–466. de Re´aumur, M. (1735). Observations du thermome`tre faites a Paris pendant l’anne´e 1735 compare´es avec celles qui ont e´te´ faites sous la ligne a l’ Ile de France, a Alger et en quelques-unes de nos ˆıles de l’Ame´rique.

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Boreal and Temperate Trees in a Changing Climate: Modelling the Ecophysiology of Seasonality by Heikki Hänninen


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