Drought sensitivity of beech on a shallow chalk soil in northeastern Germany – a comparative study

Forest Ecosystems

Table 1 Characteristics of the study trees

	Study site
	Characteristic	Schlossberg (shallow chalk soil)	Eldena (deeper soil)
Raw data	No. of trees	25	12
	DBH (cm)	81.4 (11.3)	97.9 (12.7)
	Height (m)	30.8 (2.3)	33.5 (2.3)
	TRW (mm)	1.38 (0.76)	2.34 (1.14)
	Segment length	236 (42)	200 (11)
Tree-ring indices	glk	0.73	0.71
	RBAR	0.50	0.48
	MS	0.33	0.33
	AC	0.18	0.16
	EPS	0.96	0.92

Average values are presented for DBH diameter breast height, height tree height, TRW tree-ring width, segment length number of measured tree rings per tree. Values between parentheses denote standard deviations. glk Gleichläufigkeit, RBAR inter-series correlation, MS mean sensitivity, AC first-order autocorrelation, EPS expressed population signal. Mean TRW and statistics of tree-ring indices are presented for the period 1902–2009