Gender, neighboring competition and habitat effects on the stem growth in dioecious Fraxinus mandshurica trees in a northern temperate forest

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Table I

Species composition, density, basal area and maximum diameter of live trees >1 cm dbh measured in 5.2-hm² research plot in the Changbai Mountains of North China.

Tree species	Density	Percent of total	Basal area	Percent of total	Mean dbh	Maximum
	(No. hm⁻²)	density (%)	(m² hm⁻²)	basal area (%)	(cm)	dbh (cm)
Fraxinus mandshurica	148	3.67	3.22	13.02	13.11	58
Male trees	25	0.62	1.34	5.42	24.5	58
Female trees	30	0.74	1.52	6.14	24.9	43.6
Non-flowering trees	94	2.33	0.36	1.46	7.7	33.9
Betula platyphylla	141	3.5	3.69	14.92	16.82	38.5
Tilia amurensis	436	10.82	3.58	14.47	7.57	51.1
Populus daviana	342	8.49	3.03	12.25	6.51	43.4
Quercus mongolica	140	3.47	1.49	6.02	8.78	47
Picea jezoensis	98	2.43	1.46	5.9	11.03	43.2
Abies nephrolepis	206	5.11	1.34	5.42	7.07	80
Ulmus var. japonica	145	3.6	1.03	4.16	7.15	35
Pinus koraiensis	84	2.08	0.99	4	9.3	41
Acer mono	547	13.58	0.98	3.96	3.09	46.8
Others	1741	43.21	3.93	15.89	4.2	105
Totals	4029	100	24.74	100