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FW-I-6: Endangered spruce stands

The stacked columns chart FW-I-6 ’Endangered spruce stands’ shows – for the period of 1960 to 2021 – the proportion in per cent of areas in Germany planted with spruce trees, in which the spruce bark beetle would be able to achieve a specific number of potential reproduction cycles. In this process, a differentiation was made between the number of potential reproduction cycles between 1 and 6.
Source: TI für Waldökosysteme (modelling with PHENIPS/ national forest inventory 2012)
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Short link: www.uba.de/m42837en