TITLE: The effects of pre-commercial thinning (PCT) on size, reproductive potential, annual growth and stem biomass in post-fire regeneration of Pinus halepensis Mill. saplings regenerated after fire in south-eastern Spain.

ELECTRONIC SUPPLEMENTARY MATERIAL

Supplementary Table 1 Basal diameter (cm) of all saplings of the plots. LSmeans, Standard error, confidence intervals and comparison between them: factor levels with same letters means no significant differences (P>0.05).

Yearssince thinning
Aspect / control / 2 / 3 / 4 / 5 / With constant years
South / 2.48 (0.09) / AB / 2.08 (0.11) / CD / 2.16 (0.13) / BCD / 2.03 (0.11) / D / 2.72 (0.09) / A / 2.35 (0.05) / a
[2.30-2.66] / [1.87-2.29] / [1.90-2.43] / [1.82-2.24] / [2.54-2.90] / [2.25-2.44]
North / 1.31 (0.09) / E / - / 1.86 (0.12) / D / 2.37 (0.10) / BC / 2.42 (0.09) / B / 2.00 (0.05) / b
[1.12-1.49] / [1.63-2.09] / [2.17-2.56] / [2.24-2.60] / [1.90-2.09]
With constant aspect / 1.90 (0.06) / C / 2.08 (0.11) / BC / 1.99 (0.09) / BC / 2.21 (0.07) / B / 2.57 (0.06) / A
[1.77-2.03] / [1.87-2.29] / [1.82-2.16] / [2.07-2.35] / [2.44-2.70]

Supplementary Table 2 Height (m) of all saplings of the plots. LSmeans, Standard error, confidence intervals and comparison between them: factor levels with same letters means no significant differences (P>0.05).

Yearssince thinning
Aspect / control / 2 / 3 / 4 / 5 / With constant years
South / 1.35 (0.05) / BC / 1.27 (0.05) / DC / 1.22 (0.07) / DC / 1.25 (0.05) / DC / 1.41 (0.05) / B / 1.32 (0.02) / b
[1.26-1.44] / [1.16-1.38] / [1.08-1.35] / [1.15-1.36] / [1.32-1.50] / [1.27-1.36]
North / 1.22 (0.05) / D / - / 1.20 (0.06) / DC / 1.47 (0.05) / B / 1.67 (0.05) / A / 1.41 (0.02) / a
[1.12-1.31] / [1.09-1.32] / [1.37-1.57] / [1.58-1.76] / [1.36-1.46]
With constant aspect / 1.28 (0.03) / BC / 1.27 (0.05) / BC / 1.21 (0.04) / C / 1.37(0.04) / B / 1.54 (0.03) / A
[1.22-1.35] / [1.16-1.38] / [1.12-1.30] / [1.30-1.44] / [1.48-1.61]

Supplementary Table 3Basal diameter (cm) of selected saplings. LSmeans, Standard error, confidence intervals and comparison between them: factor levels with same letters means no significant differences (P>0.05); ns: not significant differences

Years since thinning
Aspect / control / 2 / 3 / 4 / 5 / With constant years
South / 2.40 (0.14) / AC / 2.30 (0.09) / BC / 2.28 (0.09) / BC / 2.25 (0.09) / C / 2.59 (0.09) / A / 2.36 (0.04) / ns
[2.12-2.69] / [2.11-2.49] / [2.09-2.47] / [2.06-2.44] / [2.40-2.78] / [2.27-2.45]
North / 1.26 (0.08) / D / - / 2.07 (0.09) / C / 2.52 (0.09) / AB / 2.44 (0.09) / AB / 2.01 (0.05) / ns
[1.10-1.43] / [1.88-2.25] / [2.33-2.71] / [2.25-2.63] / [1.92-2.10]
With constant aspect / 1.55 (0.07) / C / 2.30 (0.09) / AB / 2.17 (0.07) / B / 2.38 (0,07) / A / 2.52 (0.07) / A
[1.41-1.69] / [2.11-2.49] / [2.04-2.31] / [2.25-2.52] / [2.38-2.65]

Supplementary Table 4 Height (m) of selected saplings. LSmeans, Standard error, confidence intervals and comparison between them: factor levels with same letters means no significant differences (P>0.05); ns: not significant differences

Years since thinning
Aspect / Control / 2 / 3 / 4 / 5 / With constant years
South / 1.41 (0.09) / ns / 1.25 (0.06) / ns / 1.29 (0.06) / ns / 1.30 (0.06) / ns / 1.40 (0.06) / ns / 1.32 (0.03) / b
[1.22-1.59] / [1.13-1.37] / [1.17-1.41] / [1.17-1.42] / [1.28-1.53] / [1.26-1.38]
North / 1.22 (0.05) / ns / - / 1.29 (0.06) / ns / 1.55 (0.06) / ns / 1.67 (0.06) / ns / 1.41 (0.03) / a
[1.11-1.32] / [1.16-1.41] / [1.42-1.67] / [1.55-1.79] / [1.35-1.47]
With constant aspect / 1.27 (0.05) / B / 1.25 (0.06) / B / 1.29 (0.04) / B / 1.42 (0.04) / A / 1.54 (0.04) / A
[1.17-1.36] / [1.13-1.37] / [1.20-1.38] / [1.34-1.51] / [1.45-1.62]

Supplementary Table 5 Reproductive potential in number of cones. LSmeans, Standard error, confidence intervals and comparison between them: factor levels with same letters means no significant differences (P>0.05).

Years since thinning
Cone type / Control / 2 / 3 / 4 / 5 / With constant years
new / 6.48 (1.42) / CD / 8.99 (0.11) / A / 8.13 (0.43) / ABC / 7.11 (0.53) / CD / 8.95 (0.20) / A / 7.72 (0.42) / a
[3.61-9.34] / [8.75-9.22] / [7.26-9.00] / [6.04-8.18] / [8.54-9.36] / [6.88-8.57]
mature / 5.92 (1.38) / CDE / 1.85 (1.85) / E / 3.83 (1.25) / E / 8.49 (0.39) / AB / 9.09 (0.21) / A / 6.25 (0.51) / b
[3.15-8.69] / [-1.87-5.56] / [1.31-6.35] / [7.70-9.29] / [8.66-9.52] / [5.23-7.28]
serotinous / 4.53 (1.36) / DE / 3.24 (1.62) / E / 4.02 (1.31) / E / 3.86 (1.25) / E / 7.50 (0.30) / BC / 4.77 (0.56) / c
[1.80-7.27] / [-0.02-6.49] / [1.39-6.65] / [1.35-6.36] / [6.89-8.11] / [3.64-5.89]
With constant type / 5.64 (1.26) / B / 4.69 (0.97) / B / 5.33 (0.69) / B / 6.49 (0.57) / B / 8.51 (0.22) / A
[3.04-8.25] / [2.69-6.69] / [3.90-6.75] / [5.30-7.67] / [8.06-8.97]

Supplementary Table 6Stem biomass (kg). LSmeans, Standard error, confidence intervals and comparison between them: factor levels with same letters means no significant differences (P>0.05); ns: not significant differences; -- it could not be estimated.

Years since thinning
aspect / Control / 2 / 3 / 4 / 5 / With constant years
South / -- / ns / -- / ns / -- / ns / -- / ns / -- / ns / 0.229 (0.015) / b
[0.199-0.258]
North / -- / ns / - / -- / ns / -- / ns / -- / ns / 0.303 (0.017) / a
[0.269-0.337]
With constant aspect / 0.149 (0.023) / C / 0.285 (0.033) / AB / 0.0.217 (0.022) / B / 0.327 (0.022) / A / 0.352 (0.022) / A
[0.102-0.196] / [0.219-0.351] / [0.173-0.260] / [0.283-0.369] / [0.309-0.395]

Supplementary Table 7Annual growth (m); LSmeans, Standard error, confidence intervals and comparison between them: factor levels with same letters means no significant differences (P>0.05); ns: not significant differences

Years since thinning
Aspect / control / 1 / 2 / 3 / 4 / 5 / With constant aspect
South / 1.49 (0.09) / D / 1.18 (0.07) / E / 1.60 (0.07) / D / 1.86 (0.08) / AC / 1.92 (0.10) / AB / 1.73 (0.14) / AD / 1.56 (0.03) / ns
[1.30-1.68] / [1.04-1.32] / [1.46-1.74] / [1.70-2.03] / [1.73-2.12] / [1.45-2.01] / [1.51-1.65]
North / 0.89 (0.05) / F / 1.09 (0.08) / E / 1.69 (0.08) / BCD / 1.99 (0.08) / A / 2.00 (0.10) / A / 1.57 (0.14) / CD / 1.38 (0.03) / ns
[0.78-1.00] / [0.93-1.25] / [1.53-1.85] / [1.83-2.15] / [1.81-2.20] / [1.29-1.85] / [1.32-1.45]
With constant years / 1.04 (0.05) / C / 1.14 (0.05) / C / 1.64 (0.05) / B / 1.93 (0.06) / A / 1.96 (0.07) / A / 1.65(0.10) / B
[0.95-1.13] / [1.03-1.25] / [1.54-1.75] / [1.81-2.04] / [1.83-2.10] / [1.45-1.85]