Inter-specific competition in mixed forests of Douglas-fir (Pseudotsuga menziesii) and common beech (Fagus sylvatica) under climate change – a model-based analysis

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Table I

Characteristics of the Speulderbos and Freienwalde study sites. Precipitation and temperature are mean annual values for the period 1958–2002. The soil information has been aggregated from Tiktak et al. (1988); Tiktak and Bouten (1990) for the Speulderbos and from Riek and Stähr (2004) for Freienwalde.

Stand	Coordinates	Region	Precipitation	Temperature	Soil type	pH	Soil depth^a	Soil texture^a	Soil layers^a
			(mm)	(°C)			(cm)
Speulderbos	52.25N; 5.68E	Gelderland (NL)	888.9	9.6	Ortic podsol	4.0	309	Silty sand	16
Freienwalde	52.52N; 14.00E	Brandenburg (GER)	523.4	8.8	Haplic podsol	3.9	304	Loamy sand	14

As parameterised in 4C.