Polyculture affects biomass production of component species but not total standing biomass and soil carbon stocks in a temperate forest plantation

Table 1 Biometric data and plot size of different tree species in mono- and polyculture plantation.

	Monoculture	Polyculture	Monoculture	Polyculture	Monoculture	Polyculture
Tree height (m)	5.71 ± 0.30a	5.83 ± 0.32a	6.18 ± 0.46a	6.18 ± 0.33a	3.19 ± 0.14a	2.10 ± 0.06b
DBH (mm)	41.79 ± 2.87a	44.75 ± 4.90a	50.77 ± 2.68a	57.58 ± 3.53a	23.91 ± 1.65a	9.53 ± 0.59b
Basal diameter (mm)	58.67 ± 3.77a	63.21 ± 7.70a	67.33 ± 2.05a	76.26 ± 2.72b	36.33 ± 1.80a	18.87 ± 0.78b
Basal area (m² ha⁻¹)	20.27 ± 3.42a	22.19 ± 4.72a	25.24 ± 1.66a	36.56 ± 5.18a	6.08 ± 0.42a	1.15 ± 0.19b
Number of tree plot⁻¹	87 ± 10	65 ± 5	84 ± 5	65 ± 5	80 ± 2	65 ± 5
Plot size (m²) (n = 4)	74 ± 15	156 ± 9	82 ± 13	156 ± 9	68 ± 4	156 ± 9

Tree height, DBH (at 1.3 m above the ground level), basal diameter at 22.5 cm and basal area were estimated in both mono- and polyculture plots. In polyculture plot, basal area of individual species was calculated separately. Mean ± SE. To compare between mono- and polyculture, data with similar alphabet are not statistically significant

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