Table 2. Annual means (±SE) for soil variables in different treatment plots in a broad-leaved Korean pine (Pinus koraiensis) mixed forest.

		NF	FF	RR	RRF
Soil moisture†(WFPS, %)	2013	30.17 ± 2.47 aA	41.16 ± 1.37 bA	31.06 ± 4.65 aA	37.25 ± 1.79 abA
	2014	24.15 ± 1.25 aA	34.63 ± 4.44 bA	24.40 ± 3.16 aA	30.21 ± 0.69 abB
Soil temperature†°C	2013	11.69 ± 0.20 aA	11.90 ± 0.00 aA	11.73 ± 0.22 aA	11.68 ± 0.20 aA
	2014	11.28 ± 0.10 aA	11.06 ± 0.01 aB	11.28 ± 0.10 aA	11.28 ± 0.10 aA
NH4+ (mg N kg−1)‡		19.99 ± 1.87 a	17.25 ± 1.78 a	17.24 ± 1.99 a	18.53 ± 1.01 a
NO3− (mg N kg−1)‡		22.86 ± 2.71 a	31.51 ± 4.04 a	30.35 ± 1.58 a	43.08 ± 4.40 b
DOC (mg C kg−1)‡		300.08 ± 13.53 ab	236.69 ± 11.71 a	347.66 ± 36.96 b	259.32 ± 28.73 a
pH‡		5.27 ± 0.51 a	5.52 ± 0.26 a	5.54 ± 0.24 a	5.51 ± 0.24 a

^†Measured across the 2013 and 2014 growing seasons. ^‡Measured only for the growing season in 2014. Different capital letters indicate a significant difference at the level of 0.05 between years for the same treatment; different lowercase letters indicate a significant difference at the level of 0.05 among treatments in the same year.