Appendix C. First year posttreatment soil conditions at the Fire and Fire Surrogate Network (FFS) scale and in the 12 individual FFS study sites.
TABLE C1. First year posttreatment soil conditions at the Fire and Fire Surrogate Network (FFS) scale and in the twelve individual FFS study sites. Site abbreviations follow Table 1. Means of n = 3 (n = 4 for OR) per treatment per study site and standard errors of the means are given.
Site |
Treatment |
Mineral Soil Exposure |
Bulk Density |
Soil pH |
Extractable Ca |
Extractable K |
|||||
% |
Mg/m3 |
Mg/ha |
Mg/ha |
||||||||
mean |
SE |
mean |
SE |
mean |
SE |
mean |
SE |
mean |
SE |
||
FFS |
Control |
1.50 |
0.39 |
0.929 |
0.039 |
5.24 |
0.15 |
101.7 |
2.8 |
30.8 |
4.7 |
FFS |
Fire |
9.22 |
2.27 |
0.891 |
0.045 |
5.38 |
0.13 |
206.4 |
51.1 |
89.4 |
38.1 |
FFS |
Mechanical |
2.59 |
0.93 |
1.022 |
0.046 |
5.09 |
0.12 |
71.9 |
20.4 |
20.6 |
4.8 |
FFS |
Mechanical+Fire |
5.01 |
1.73 |
0.993 |
0.043 |
5.28 |
0.13 |
90.9 |
26.0 |
21.3 |
4.4 |
CA-N |
Control |
2.64 |
0.45 |
0.667 |
0.007 |
5.2 |
0.09 |
340.8 |
24.0 |
60.9 |
3.4 |
CA-N |
Fire |
3.94 |
0.23 |
0.519 |
0.036 |
5.84 |
0.11 |
509.7 |
78.3 |
87.5 |
9.6 |
CA-N |
Mechanical |
3.74 |
0.17 |
0.643 |
0.050 |
5.11 |
0.14 |
316.7 |
48.2 |
69.2 |
16.5 |
CA-N |
Mechanical+Fire |
3.38 |
0.30 |
0.633 |
0.003 |
5.49 |
0.06 |
387.9 |
53.5 |
66.0 |
0.7 |
CA-C |
Control |
1.48 |
0.60 |
0.855 |
0.020 |
5.26 |
0.09 |
1.5 |
0.2 |
0.2 |
0.0 |
CA-C |
Fire |
6.18 |
1.13 |
0.813 |
0.040 |
5.78 |
0.06 |
1.8 |
0.1 |
0.2 |
0.0 |
CA-C |
Mechanical |
1.52 |
0.43 |
0.837 |
0.010 |
5.31 |
0.15 |
1.7 |
0.4 |
0.2 |
0.0 |
CA-C |
Mechanical+Fire |
5.25 |
0.75 |
0.712 |
0.065 |
5.75 |
0.07 |
1.9 |
0.1 |
0.2 |
0.0 |
WA |
Control |
0.00 |
0.00 |
1.029 |
0.042 |
6.35 |
0.1 |
2.2 |
0.9 |
0.5 |
0.1 |
WA |
Fire |
0.00 |
0.00 |
0.985 |
0.055 |
6.24 |
0.14 |
3.9 |
0.1 |
0.6 |
0.3 |
WA |
Mechanical |
0.00 |
0.00 |
1.081 |
0.033 |
6.05 |
0.14 |
1.6 |
1.5 |
0.4 |
0.0 |
WA |
Mechanical+Fire |
0.00 |
0.00 |
1.068 |
0.061 |
6.32 |
0.19 |
3.2 |
0.4 |
0.8 |
0.0 |
CA-S |
Control |
4.36 |
1.81 |
0.530 |
0.049 |
5.78 |
0.14 |
360.4 |
150.3 |
nd |
nd |
CA-S |
Fire |
20.24 |
4.01 |
0.505 |
0.035 |
6.14 |
0.13 |
688.0 |
106.5 |
672.5 |
133.9 |
OR |
Control |
0.73 |
0.12 |
1.018 |
0.018 |
6.4 |
0.42 |
12.7 |
1.2 |
11.7 |
1.5 |
OR |
Fire |
1.09 |
0.11 |
1.084 |
0.056 |
6.16 |
0.12 |
15.9 |
2.5 |
15.4 |
4.5 |
OR |
Mechanical |
0.69 |
0.29 |
1.339 |
0.110 |
5.68 |
0.12 |
18.8 |
1.4 |
11.0 |
1.1 |
OR |
Mechanical+Fire |
1.55 |
0.24 |
1.194 |
0.099 |
6.16 |
0.06 |
18.3 |
2.6 |
13.0 |
1.1 |
MT |
Control |
0.01 |
0.01 |
0.930 |
0.012 |
5.05 |
0.1 |
1.4 |
0.2 |
0.4 |
0.0 |
MT |
Fire |
0.26 |
0.08 |
0.918 |
0.014 |
5.29 |
0.07 |
1.3 |
0.1 |
0.3 |
0.0 |
MT |
Mechanical |
0.08 |
0.03 |
0.965 |
0.054 |
5.13 |
0.12 |
1.3 |
0.2 |
0.3 |
0.0 |
MT |
Mechanical+Fire |
0.36 |
0.00 |
0.917 |
0.040 |
5.35 |
0.13 |
1.3 |
0.1 |
0.3 |
0.0 |
AZ |
Control |
nd |
nd |
0.803 |
0.057 |
5.49 |
0.17 |
nd |
nd |
nd |
nd |
AZ |
Fire |
nd |
nd |
0.765 |
0.008 |
5.59 |
0.11 |
nd |
nd |
nd |
nd |
AZ |
Mechanical |
nd |
nd |
0.764 |
0.021 |
5.4 |
0.09 |
nd |
nd |
nd |
nd |
AZ |
Mechanical+Fire |
nd |
nd |
0.759 |
0.022 |
5.47 |
0.12 |
nd |
nd |
nd |
nd |
AL |
Control |
nd |
nd |
1.249 |
0.022 |
4.65 |
0.13 |
7.9 |
3.0 |
18.5 |
1.4 |
AL |
Fire |
nd |
nd |
1.215 |
0.004 |
4.54 |
0.07 |
6.4 |
1.7 |
20.3 |
4.5 |
AL |
Mechanical |
nd |
nd |
1.370 |
0.028 |
4.55 |
0.02 |
9.0 |
3.0 |
15.6 |
4.5 |
AL |
Mechanical+Fire |
nd |
nd |
1.391 |
0.033 |
4.72 |
0.02 |
9.1 |
4.6 |
21.3 |
7.9 |
OH |
Control |
1.83 |
1.17 |
0.850 |
0.040 |
3.6 |
0.02 |
105.7 |
38.7 |
28.8 |
3.3 |
OH |
Fire |
25.67 |
8.53 |
0.930 |
0.070 |
3.84 |
0.09 |
155.3 |
11.3 |
30.7 |
1.5 |
OH |
Mechanical |
10.17 |
4.00 |
0.920 |
0.035 |
3.72 |
0.11 |
168.6 |
34.7 |
40.4 |
6.5 |
OH |
Mechanical+Fire |
22.00 |
7.29 |
0.887 |
0.009 |
3.94 |
0.12 |
235.7 |
40.4 |
37.6 |
5.6 |
SC |
Control |
nd |
nd |
0.846 |
0.029 |
4.99 |
0.03 |
19.6 |
1.3 |
4.3 |
0.3 |
SC |
Fire |
nd |
nd |
0.863 |
0.020 |
5.07 |
0.13 |
26.9 |
6.1 |
5.6 |
1.2 |
SC |
Mechanical |
nd |
nd |
0.868 |
0.083 |
5.19 |
0.17 |
23.5 |
4.1 |
5.4 |
1.2 |
SC |
Mechanical+Fire |
nd |
nd |
0.880 |
0.059 |
5.05 |
0.05 |
30.9 |
4.0 |
4.8 |
0.3 |
NC |
Control |
nd |
nd |
1.252 |
0.016 |
4.53 |
0.05 |
194.8 |
26.5 |
64.6 |
10.0 |
NC |
Fire |
nd |
nd |
1.284 |
0.027 |
4.6 |
0.08 |
169.4 |
13.4 |
56.3 |
10.2 |
NC |
Mechanical |
nd |
nd |
1.247 |
0.084 |
4.58 |
0.08 |
123.3 |
17.6 |
45.6 |
9.7 |
NC |
Mechanical+Fire |
nd |
nd |
1.158 |
0.049 |
4.61 |
0.04 |
124.5 |
8.4 |
44.0 |
7.7 |
FL |
Control |
0.56 |
nd |
1.425 |
n = 1 |
nd |
nd |
nd |
nd |
nd |
nd |
FL |
Fire |
2.92 |
0.66 |
1.300 |
0.045 |
4.38 |
0.1 |
nd |
nd |
nd |
nd |
FL |
Mechanical |
2.54 |
nd |
1.266 |
n = 1 |
nd |
nd |
nd |
nd |
nd |
nd |
FL |
Mechanical+Fire |
2.77 |
0.42 |
1.214 |
0.030 |
nd |
nd |
nd |
nd |
nd |
nd |
Site |
Treatment |
Extractable Al |
Extractable P |
Total Inorganic N |
N Mineralization |
Net Nitrification |
|||||
Mg/ha |
kg/ha |
kg/ha |
kg ha-1 d-1 |
kg ha-1 d-1 |
|||||||
mean |
SE |
mean |
SE |
mean |
SE |
mean |
SE |
mean |
SE |
||
FFS |
Control |
231 |
94.2 |
400.2 |
174.5 |
5.9 |
1.21 |
0.122 |
0.043 |
0.04 |
0.019 |
FFS |
Fire |
210.4 |
89.6 |
389.2 |
170.5 |
11.04 |
1.56 |
0.097 |
0.042 |
0.051 |
0.016 |
FFS |
Mechanical |
266.9 |
107.6 |
432.2 |
212.8 |
6.29 |
1.1 |
0.094 |
0.037 |
0.048 |
0.028 |
FFS |
Mechanical+Fire |
259.1 |
109.5 |
503.6 |
258.1 |
11.56 |
1.99 |
0.107 |
0.045 |
0.087 |
0.027 |
CA-N |
Control |
13.4 |
5.1 |
49.6 |
8.1 |
1.39 |
0.44 |
0.034 |
0.014 |
0.014 |
0.006 |
CA-N |
Fire |
2.9 |
1.7 |
66.8 |
3.2 |
5.23 |
1.07 |
0.003 |
0.016 |
0.007 |
0.005 |
CA-N |
Mechanical |
8.4 |
1.1 |
46.4 |
21.5 |
1.94 |
0.01 |
0.02 |
0.009 |
0.007 |
0.002 |
CA-N |
Mechanical+Fire |
6.2 |
0.9 |
57.6 |
18.5 |
3.8 |
0.22 |
0.05 |
0.022 |
0.019 |
0.009 |
CA-C |
Control |
nd |
nd |
2.6 |
0.3 |
1.74 |
0.07 |
0.065 |
0.012 |
0.036 |
0.019 |
CA-C |
Fire |
nd |
nd |
3.7 |
0.7 |
21.95 |
2.1 |
0.078 |
0.001 |
0.129 |
0.053 |
CA-C |
Mechanical |
nd |
nd |
2.25 |
0.3 |
2.16 |
0.09 |
0.124 |
0.014 |
0.076 |
0.026 |
CA-C |
Mechanical+Fire |
nd |
nd |
2.08 |
0.3 |
38.57 |
5.81 |
0.172 |
0.086 |
0.161 |
0.022 |
WA |
Control |
0 |
0 |
3.5 |
1.1 |
10.24 |
5.7 |
-0.113 |
0.109 |
0.124 |
0.095 |
WA |
Fire |
0 |
0 |
2.3 |
0.6 |
7.71 |
1.11 |
-0.115 |
0.022 |
0.075 |
0.022 |
WA |
Mechanical |
0 |
0 |
1.5 |
0.4 |
11.68 |
5.19 |
-0.167 |
0.144 |
0.071 |
0.014 |
WA |
Mechanical+Fire |
0 |
0 |
3.6 |
0.3 |
15.71 |
2.59 |
-0.179 |
0.151 |
0.223 |
0.183 |
CA-S |
Control |
2.6 |
2.3 |
399.2 |
126.8 |
11.94 |
1.95 |
0.173 |
0.08 |
0.068 |
0.013 |
CA-S |
Fire |
1.9 |
1 |
177 |
46.8 |
20.6 |
2.25 |
0.084 |
0.054 |
0.096 |
0.026 |
OR |
Control |
nd |
nd |
133.7 |
36.6 |
3.59 |
0.67 |
0.423 |
0.06 |
0.021 |
0.002 |
OR |
Fire |
nd |
nd |
127.2 |
14.2 |
8.37 |
2.28 |
-0.018 |
0.297 |
0.045 |
0.026 |
OR |
Mechanical |
nd |
nd |
124.2 |
29.7 |
5.58 |
0.25 |
0.107 |
0.224 |
0.022 |
0.009 |
OR |
Mechanical+Fire |
nd |
nd |
157.9 |
23 |
8.52 |
1.82 |
-0.071 |
0.233 |
0.033 |
0.011 |
MT |
Control |
0 |
0 |
0.42 |
0 |
0.85 |
0.09 |
0.059 |
0.012 |
0.009 |
0.005 |
MT |
Fire |
0 |
0 |
0.46 |
0 |
2.12 |
0.19 |
0.088 |
0.022 |
0.011 |
0.005 |
MT |
Mechanical |
0 |
0 |
0.5 |
0.1 |
0.81 |
0.07 |
0.126 |
0.074 |
0.039 |
0.032 |
MT |
Mechanical+Fire |
0 |
0 |
0.43 |
0.1 |
4.95 |
0.86 |
0.195 |
0.016 |
0.096 |
0.024 |
AZ |
Control |
nd |
nd |
nd |
nd |
1.38 |
0.51 |
0.03 |
0.018 |
0 |
0.005 |
AZ |
Fire |
nd |
nd |
nd |
nd |
4.66 |
1.53 |
0.047 |
0.025 |
0.023 |
0.006 |
AZ |
Mechanical |
nd |
nd |
nd |
nd |
3.36 |
0.95 |
0.002 |
0.001 |
-0.001 |
0.001 |
AZ |
Mechanical+Fire |
nd |
nd |
nd |
nd |
2.84 |
1.07 |
0.006 |
0.002 |
0.003 |
0.002 |
AL |
Control |
nd |
nd |
2840 |
647.7 |
6.32 |
1.9 |
0.096 |
0.067 |
0.011 |
0.018 |
AL |
Fire |
nd |
nd |
3064.4 |
456.4 |
8.3 |
1.7 |
0.183 |
0.047 |
0.022 |
0.021 |
AL |
Mechanical |
nd |
nd |
3110.3 |
661.4 |
9.4 |
2.6 |
0.225 |
0.062 |
0.018 |
0.012 |
AL |
Mechanical+Fire |
nd |
nd |
3510.7 |
971.9 |
11.36 |
3.04 |
0.258 |
0.093 |
0.062 |
0.029 |
OH |
Control |
279.2 |
18.2 |
110 |
32 |
6 |
1.57 |
0.227 |
0.055 |
0.211 |
0.038 |
OH |
Fire |
245.5 |
34.9 |
81.3 |
25.5 |
5.15 |
0.23 |
0.166 |
0.006 |
0.177 |
0.026 |
OH |
Mechanical |
275.9 |
10.7 |
127.4 |
13.8 |
14.36 |
5.84 |
0.281 |
0.008 |
0.318 |
0.004 |
OH |
Mechanical+Fire |
199.9 |
37.9 |
102.3 |
12.1 |
8.58 |
1.01 |
0.215 |
0.017 |
0.255 |
0.029 |
SC |
Control |
88 |
2.9 |
nd |
nd |
0.81 |
0.31 |
0.039 |
0.011 |
0.001 |
0.001 |
SC |
Fire |
89.8 |
2.3 |
nd |
nd |
0.83 |
0.1 |
0.041 |
0.011 |
0.007 |
0.007 |
SC |
Mechanical |
86.2 |
1.1 |
nd |
nd |
0.83 |
0.33 |
0.112 |
0.014 |
0.005 |
0.003 |
SC |
Mechanical+Fire |
83.1 |
0.9 |
nd |
nd |
1.58 |
0.27 |
0.033 |
0.04 |
0.01 |
0.002 |
NC |
Control |
1233.8 |
63.5 |
151.9 |
11.5 |
11.75 |
0.82 |
0.321 |
0.083 |
0.003 |
0.003 |
NC |
Fire |
1271.2 |
62.9 |
150.6 |
13.7 |
14.11 |
4.32 |
0.129 |
0.084 |
0.009 |
0.028 |
NC |
Mechanical |
1231.2 |
65.7 |
147.5 |
12.5 |
13.22 |
1.96 |
0.175 |
0.138 |
0.04 |
0.036 |
NC |
Mechanical+Fire |
1179.3 |
115.1 |
143.1 |
3.5 |
11.95 |
0.44 |
0.232 |
0.229 |
0.079 |
0.057 |
FL |
Control |
nd |
nd |
nd |
nd |
34.89 |
n = 1 |
0.169 |
n = 1 |
0.008 |
n = 1 |
FL |
Fire |
nd |
nd |
nd |
nd |
30.01 |
14.58 |
0.479 |
0.007 |
0.013 |
0.01 |
FL |
Mechanical |
nd |
nd |
nd |
nd |
5.59 |
N = 1 |
0.028 |
n = 1 |
0 |
n = 1 |
FL |
Mechanical+Fire |
nd |
nd |
nd |
nd |
26.76 |
1.27 |
0.266 |
0.004 |
0.014 |
0.001 |
Site |
Treatment |
Soil Organic C |
Total Soil N |
Soil C:N |
|||||||
Mg/ha |
Mg/ha |
ratio |
|||||||||
mean |
SE |
mean |
SE |
mean |
SE |
||||||
FFS |
Control |
30.84 |
2.70 |
1.28 |
0.14 |
22.41 |
0.81 |
||||
FFS |
Fire |
27.77 |
1.97 |
1.12 |
0.12 |
22.47 |
0.81 |
||||
FFS |
Mechanical |
29.72 |
2.69 |
1.27 |
0.12 |
28.5 |
4.59 |
||||
FFS |
Mechanical+Fire |
29.43 |
2.23 |
1.57 |
0.24 |
23.89 |
1.44 |
||||
CA-N |
Control |
31.93 |
4.26 |
1.19 |
0.12 |
26.89 |
1.05 |
||||
CA-N |
Fire |
23.76 |
4.14 |
0.94 |
0.23 |
26.63 |
0.84 |
||||
CA-N |
Mechanical |
33.29 |
1.76 |
1.31 |
0.16 |
25.69 |
1.87 |
||||
CA-N |
Mechanical+Fire |
32.47 |
2.10 |
1.35 |
0.08 |
24.04 |
1.01 |
||||
CA-C |
Control |
66.39 |
5.19 |
2.95 |
0.30 |
22.81 |
0.62 |
||||
CA-C |
Fire |
55.13 |
3.83 |
2.58 |
0.19 |
21.45 |
0.31 |
||||
CA-C |
Mechanical |
64.5 |
3.88 |
2.86 |
0.28 |
22.72 |
0.82 |
||||
CA-C |
Mechanical+Fire |
58.90 |
1.00 |
2.78 |
0.20 |
21.53 |
1.37 |
||||
WA |
Control |
25.01 |
5.45 |
1.41 |
0.47 |
21.52 |
3.82 |
||||
WA |
Fire |
32.76 |
4.50 |
1.45 |
0.02 |
22.42 |
3.04 |
||||
WA |
Mechanical |
21.47 |
0.70 |
0.93 |
0.07 |
24.11 |
1.28 |
||||
WA |
Mechanical+Fire |
38.20 |
0.99 |
1.70 |
0.26 |
24.34 |
4.40 |
||||
CA-S |
Control |
32.58 |
1.90 |
0.15 |
0.01 |
21.92 |
1.00 |
||||
CA-S |
Fire |
25.15 |
1.90 |
0.13 |
0.01 |
20.21 |
0.3 |
||||
OR |
Control |
11.69 |
1.59 |
0.66 |
0.09 |
17.60 |
0.39 |
||||
OR |
Fire |
14.02 |
1.31 |
0.82 |
0.08 |
16.98 |
0.92 |
||||
OR |
Mechanical |
15.60 |
2.30 |
0.80 |
0.11 |
20.48 |
1.59 |
||||
OR |
Mechanical+Fire |
16.40 |
0.39 |
0.90 |
0.08 |
18.29 |
1.66 |
||||
MT |
Control |
23.09 |
2.69 |
1.06 |
0.10 |
21.47 |
0.68 |
||||
MT |
Fire |
17.70 |
0.61 |
0.87 |
0.03 |
20.36 |
0.61 |
||||
MT |
Mechanical |
18.39 |
2.25 |
0.88 |
0.09 |
20.52 |
0.20 |
||||
MT |
Mechanical+Fire |
19.67 |
2.48 |
0.96 |
0.11 |
20.40 |
0.53 |
||||
AZ |
Control |
29.66 |
2.96 |
1.37 |
0.14 |
21.70 |
1.07 |
||||
AZ |
Fire |
34.87 |
5.75 |
1.57 |
0.28 |
22.08 |
0.08 |
||||
AZ |
Mechanical |
33.61 |
6.10 |
1.30 |
0.12 |
23.89 |
0.71 |
||||
AZ |
Mechanical+Fire |
33.97 |
4.10 |
1.42 |
0.14 |
23.70 |
0.47 |
||||
AL |
Control |
22.43 |
2.67 |
0.66 |
0.04 |
33.21 |
2.05 |
||||
AL |
Fire |
22.51 |
4.21 |
0.66 |
0.14 |
35.09 |
2.74 |
||||
AL |
Mechanical |
20.17 |
5.23 |
0.53 |
0.26 |
80.82 |
46.05 |
||||
AL |
Mechanical+Fire |
21.40 |
6.92 |
0.88 |
0.19 |
43.91 |
9.67 |
||||
OH |
Control |
30.43 |
2.09 |
1.70 |
0.19 |
18.33 |
0.87 |
||||
OH |
Fire |
31.51 |
5.69 |
1.79 |
0.40 |
18.63 |
1.25 |
||||
OH |
Mechanical |
31.69 |
7.59 |
1.76 |
0.58 |
19.40 |
1.60 |
||||
OH |
Mechanical+Fire |
24.38 |
1.64 |
1.37 |
0.18 |
18.83 |
1.38 |
||||
SC |
Control |
20.61 |
1.08 |
0.88 |
0.01 |
19.45 |
0.47 |
||||
SC |
Fire |
19.82 |
2.30 |
1.01 |
0.12 |
22.59 |
1.32 |
||||
SC |
Mechanical |
16.67 |
2.32 |
0.87 |
0.17 |
23.99 |
5.95 |
||||
SC |
Mechanical+Fire |
16.73 |
1.53 |
0.99 |
0.10 |
16.87 |
0.67 |
||||
NC |
Control |
51.79 |
4.34 |
2.23 |
0.21 |
23.27 |
1.07 |
||||
NC |
Fire |
41.02 |
2.71 |
1.93 |
0.19 |
21.55 |
0.87 |
||||
NC |
Mechanical |
45.39 |
33.25 |
1.65 |
0.10 |
27.71 |
1.71 |
||||
NC |
Mechanical+Fire |
41.73 |
2.21 |
1.65 |
0.10 |
25.37 |
1.56 |
||||
FL |
Control |
nd |
nd |
nd |
nd |
nd |
nd |
||||
FL |
Fire |
21.94 |
4.39 |
0.76 |
0.07 |
27.46 |
3.02 |
||||
FL |
Mechanical |
31.37 |
1.87 |
1.23 |
0.08 |
26.03 |
1.10 |
||||
FL |
Mechanical+Fire |
27.76 |
1.01 |
3.03 |
1.91 |
26.64 |
1.04 |