Effect of Forest Structural Change on Carbon Storage in a Coastal Metasequoia glyptostroboides Stand

Table 3

Soil light fraction organic carbon content in thinned, underplanted, and unthinned stands (standard deviation in brackets); different letters in the same soil layer indicate there are significant differences among the three treatments (5% level, Duncan test), small letters denote the difference in LFOC, and capital letters denote the difference in LFOC/SOC.

Soil layer (cm)	Thinned		Underplanted		Unthinned
	LFOC	LFOC/SOC	LFOC	LFOC/SOC	LFOC	LFOC/SOC
	(g kg^−1)	(%)	(g kg^−1)	(%)	(g kg^−1)	(%)
0–15	7.06 (1.25)^a	30.00 (3.15)^A	6.85 (1.34)^a	30.09 (3.46)^A	5.21 (1.08)^b	33.49 (3.06)^A
15–30	2.53 (0.83)^a	18.25 (2.34)^A	2.64 (0.68)^a	16.27 (2.12)^A	2.14 (0.75)^a	17.08 (2.40)^A
30–50	0.42 (0.21)^a	5.38 (1.64)^A	0.51 (0.26)^a	4.80 (1.35)^A	0.45 (0.19)^a	4.67 (1.28)^A
50–100	0.08 (0.05)^a	1.50 (0.58)^A	0.06 (0.05)^a	1.05 (0.41)^A	0.05 (0.04)^a	0.89 (0.52)^A