Growth and productivity of black spruce (Picea mariana) belonging to the first cohort in stands within and north of the commercial forest in Quebec, Canada

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Table I

Location and characteristics (number of trees, dominant height, mean DBH, stand age, density and basal area) of the 12 black spruce plots of 400 m² within (southern stands) and north of the commercial forest in Quebec, Canada.

					Number of trees in the plot

Stand	Stand	Latitude	Longitude	Altitude	Black	Other	Dominant	Mean DBH	Stand age	Stand density	Basal area
	number			(m a.s.l.)	spruce	species	height (m)	(cm)	(years)	(trees ha^-1)	(m² ha^-1)

Northern	1	51° 40′	71° 01′	603	37	1	11.44	12.48	114	950	11.91
	2	51° 45′	70° 27′	540	85	5	14.98	13.06	132	2250	31.17
	3	51° 53′	70° 23′	540	60		12.49	12.4	139	1500	18.68
	4	51° 48′	71° 36′	640	89	7	13.7	12.91	170	2400	32.63
	5	51° 30′	70° 04′	560	39		14.41	16.52	190	975	21.14
	6	51° 16′	70° 11′	535	52	26	19.28	16.63	213	1950	46.1

Southern	1	49° 19′	70° 36′	569	73	7	18.58	15.66	130	2000	40.21
	2	49° 23′	70° 35′	526	52		13.33	14.59	130	1300	22.68
	3	49° 14′	70° 31′	558	27	1	17.47	17.15	130	700	18.34
	4	49° 04′	70° 22′	567	48		11.89	12.06	131	1200	14.14
	5	49° 04′	70° 21′	522	49	2	17.83	15.75	134	1275	24.79
	6	49° 12′	70° 33′	609	68		14.16	13.71	138	1700	26.12