PDG-Arena: an ecophysiological model for characterizing tree-tree interactions in heterogeneous and mixed stands

Table 2 Characteristics of the stands used to evaluate the model

Group	N	Altitude	Mean DBH	Density	Basal area	% Beech	Mean age	LAI
Bauges	10	\(1100 \pm 101\)	\(28.7 \pm 6.7\)	\(1030 \pm 685\)	\(72 \pm 14\)	\(53 \pm 43\)	\(89 \pm 16\)	\(5.6 \pm 0.2\)
Vercors	14	\(1250 \pm 101\)	\(32.3 \pm 8.6\)	\(657 \pm 275\)	\(56 \pm 14\)	\(53\pm 38\)	\(118 \pm 40\)	\(5.6 \pm 0.3\)
Ventoux	15	\(1250 \pm 126\)	\(22.1 \pm 6.3\)	\(1450 \pm 623\)	\(57 \pm 13\)	\(50 \pm 40\)	\(105 \pm 47\)	\(3.2 \pm 0.3\)
Mixed	13	\(1200 \pm 131\)	\(26.2 \pm 7.3\)	\(1080 \pm 465\)	\(64 \pm 13\)	\(46 \pm 10\)	\(101 \pm 29\)	\(4.7 \pm 0.5\)
Beech	14	\(1230 \pm 118\)	\(26.7 \pm 10.3\)	\(1200\pm 794\)	\(56\pm 14\)	\(97 \pm 5\)	\(119 \pm 35\)	\(4.7 \pm 1.2\)
Fir	12	\(1190 \pm 139\)	\(29.8 \pm 7.4\)	\(867 \pm 578\)	\(62 \pm 18\)	\(5 \pm 7\)	\(94 \pm 50\)	\(4.7\pm 1.3\)
All	39	\(1210 \pm 126\)	\(27.5 \pm 8.4\)	\(850 \pm 632\)	\(60 \pm 15\)	\(51 \pm 39\)	\(105 \pm 39\)	\(2.9 \pm 1.2\)

Mean value and standard deviation for each site (Bauges, Ventoux, Vercors) and composition (Mixed, Beech, Fir) are shown for variables: number of stands, altitude (in m), mean diameter at breast height per stand (in cm), density (in stem ha⁻¹), basal area (in m²ha⁻¹), proportion of beech basal area (in %), mean age per stand (in years), Leaf Area Index (no unit)

ISSN: 1297-966X