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

From: Rainfall reduction amplifies the stimulatory effect of nitrogen addition on N2O emissions from a temperate forest soil

  

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

  1. †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.
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