Table 1 Soil chemical properties across the burning treatments.

From: Long term repeated fire disturbance alters soil bacterial diversity but not the abundance in an Australian wet sclerophyll forest

Treatment

TC

TN

Pi

C:N

Moisture

DOC

DON

pH

EC

NO3−

NH4+

MBC

MBN

B2

3.15 ± 0.37(b)*

0.12 ± 0.02(b)

24.6 ± 4.2(a)

26.0 ± 2.5(a)

9.99 ± 1.73(b)

389 ± 77(b)

21.7 ± 5.9(b)

5.41 ± 0.14(a)

25.2 ± 2.1(b)

5.7 ± 3.5(a)

9.2 ± 2.09(ab)

391 ± 28(b)

63.6 ± 14.1(abc)

B4

4.93 ± 0.70(a)

0.23 ± 0.02(a)

23.0 ± 5.0(a)

21.5 ± 1.6(a)

18.8 ± 1.2(a)

672 ± 86(a)

37.1 ± 5.3(a)

5.11 ± 0.27(ab)

34.2 ± 15.4(ab)

14.5 ± 13.6(a)

11.0 ± 1.8(a)

529 ± 10(a)

84.3 ± 18.4(a)

B0

4.75 ± 1.45(a)

0.22 ± 0.08(a)

26.0 ± 6.5(a)

21.7 ± 2.3(a)

17.4 ± 5.5(a)

676 ± 69(a)

37.3 ± 9.5(a)

4.86 ± 0.06(b)

41.4 ± 7.2((a)

20.2 ± 12.0(a)

12.0 ± 2.2(a)

513 ± 9(a)

75.2 ± 9.9(ab)

sB2

2.31 ± 0.19(b)

0.09 ± 0.01(b)

22.3 ± 5.5(a)

25.2 ± 3.5(a)

9.05 ± 1.36(b)

240 ± 61(c)

14.1 ± 6.3(b)

5.43 ± 0.04(a)

22.7 ± 3.8(b)

7.6 ± 4.9(a)

7.3 ± 1.7(b)

320 ± 65(b)

55.4 ± 15.0(bc)

sB4

3.38 ± 0.51(b)

0.15 ± 0.02(b)

16.8 ± 7.3(a)

22.8 ± 1.9(a)

15.6 ± 0.9(a)

280 ± 20(bc)

13.7 ± 2.3(b)

5.24 ± 0.24((a)

22.4 ± 3.5(b)

8.5 ± 7.5(a)

6.8 ± 0.7(b)

293 ± 61(b)

51.4 ± 14.9(c)

sB0

3.26 ± 0.85(b)

0.15 ± 0.04(b)

23.7 ± 2.9(a)

22.3 ± 2.1(a)

14.2 ± 4.5(ab)

289 ± 61(bc)

13.7 ± 2.4(b)

5.11 ± 0.08(ab)

24.9 ± 5.1(b)

12.6 ± 5.2(a)

7.2 ± 1.1(b)

292 ± 39(b)

44.0 ± 5.9(bc)

  1. *The different letter at the same column indicated significant difference at P < 0.05.
  2. The unit % for TC, TN and moisture; mg kg−1 for Pi, DOC, DON, NO3−, NH4+, MBC and MBN; and μs cm−1 for EC.
  3. Abbreviation: TC, total carbon; TN, total nitrogen; Pi, NaHCO3-extractable inorganic phosphorus; C:N, the ratio of TC to TN; DOC, hot water extracted dissolved organic carbon; DON, hot water extracted dissolved organic nitrogen; EC, electrical conductance; MBC, Microbial biomass carbon; MBN, microbial biomass nitrogen.
  4. B0, B2 and B4 represent the 0–10 cm samples from the treatments of no burning, burning every two years and burning every four years respectively while sB0s, sB2 and sB4 the 10–20 cm samples from the same treatments.
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