Ecological Archives C006-029-A3
Frances C. O'Donnell, Kelly K. Caylor, Abinash Bhattachan, Kebonye Dintwe, and Gregory S. Okin. 2015. A quantitative description of the interspecies diversity of belowground structure in savanna woody plants. Ecosphere 6:154. http://dx.doi.org/10.1890/es14-00310.1
Appendix C. Individual statistics for excavated trees.
The aboveground and belowground measurements made on each excavated tree are given in Table C1. The parameters of the functions fit to the vertical and lateral distribution of coarse root biomass of each individual and the descriptive values determined from these functions are given in Table C2.
Table C1. Aboveground and belowground measurements of excavated trees.
Site |
Species |
Height (m) |
Canopy Diameter (m) |
Basal |
Number |
Diameter of |
Wet |
O. pulchra |
2.8 |
1.2 |
67 |
1 |
… |
Wet |
O. pulchra |
3.5 |
1.8 |
127 |
1 |
… |
Wet |
O. pulchra |
3.6 |
1.9 |
54 |
1 |
… |
Wet |
T. sericea |
5.4 |
5.0 |
158 |
1 |
6 |
Wet |
T. sericea |
7.8 |
5.1 |
287 |
1 |
13 |
Wet |
T. sericea |
3.0 |
3.0 |
61 |
3 |
4 |
Int. |
T. sericea |
2.5 |
3.1 |
157 |
4 |
17 |
Int. |
T. sericea |
2.2 |
3.7 |
143 |
6 |
3 |
Int. |
T. sericea |
3.3 |
3.6 |
105 |
6 |
10 |
Int. |
A. mellifera |
3.2 |
4.9 |
185 |
4 |
21 |
Int. |
A. mellifera |
2.1 |
3.6 |
76 |
4 |
31 |
Int. |
A. mellifera |
2.2 |
3.9 |
136 |
6 |
23 |
Dry |
A. mellifera |
1.8 |
2.3 |
74 |
11 |
21 |
Dry |
A. mellifera |
1.9 |
3.5 |
62 |
6 |
19 |
Dry |
A. mellifera |
1.9 |
2.7 |
39 |
6 |
15 |
Dry |
B. albitrunca |
3.5 |
5.6 |
502 |
1 |
… |
Dry |
B. albitrunca |
2.5 |
3.1 |
140 |
1 |
… |
Dry |
B. albitrunca |
3.0 |
2.3 |
26 |
1 |
… |
†Excluding stems < 1 cm basal diameter.
Table C2. Aboveground and belowground mass of excavated trees.
|
Site |
Species |
Aboveground Mass (kg) |
Root Crown Mass (kg) |
Lateral Root Mass (kg)† |
Root to Shoot Ratio |
Wet |
O. pulchra |
5.2 |
2.1 |
1.9 |
0.8 |
Wet |
O. pulchra |
6.7 |
2.5 |
4.2 |
1.0 |
Wet |
O. pulchra |
2.8 |
1.3 |
1.2 |
0.9 |
Wet |
T. sericea |
25.9 |
… |
14.7 |
… |
Wet |
T. sericea |
47.0 |
5.8 |
37.2 |
0.9 |
Wet |
T. sericea |
3.78 |
2.7 |
7.5 |
2.7 |
Int. |
T. sericea |
13.0 |
1.7 |
28.2 |
2.3 |
Int. |
T. sericea |
12.6 |
3.6 |
21.3 |
2.0 |
Int. |
T. sericea |
12.3 |
3.3 |
17.3 |
1.7 |
Int. |
A. mellifera |
61.9 |
4.4 |
10.8 |
0.25 |
Int. |
A. mellifera |
38.9 |
2.3 |
13.5 |
0.41 |
Int. |
A. mellifera |
24.1 |
2.0 |
6.7 |
0.36 |
Dry |
A. mellifera |
18.6 |
1.4 |
2.5 |
0.21 |
Dry |
A. mellifera |
21.6 |
0.9 |
2.1 |
0.14 |
Dry |
A. mellifera |
9.9 |
1.1 |
2.2 |
0.33 |
Dry |
B. albitrunca |
94.5 |
32.0 |
39.1 |
0.8 |
Dry |
B. albitrunca |
29.9 |
8.3 |
29.8 |
1.3 |
Dry |
B. albitrunca |
21.0 |
4.4 |
52.8 |
2.7 |
†Extrapolated from exponential or gamma functions (Table C3) fit to distribution of biomass with depth.
Table C3. Parameters of exponential functions fit to coarse root biomass with radial distance from stem (r) and exponential (T. sericea and A. mellifera) or gamma (O. pulchra and B. albitrunca) functions fit to coarse root distribution with depth (z). Parameter estimates are given ± the 95% confidence interval.
|
Site |
Species |
Radial Distribution |
Vertical Distribution |
||||
ar |
br |
Root Mean |
az |
bz |
Root Mean |
||
Wet |
O. pulchra |
6.6 ± 0.8 |
1.8 ± 0.2 |
0.08 |
4.0 ± 3.1 |
0.11 ± 0.09 |
0.2 |
Wet |
O. pulchra |
12.7 ± 1.8 |
1.6 ± 0.3 |
0.25 |
3.5 ± 2.0 |
0.13 ± 0.07 |
0.3 |
Wet |
O. pulchra |
7.7 ± 1.9 |
3.4 ± 0.9 |
0.07 |
5.0 ± 1.7 |
0.10 ± 0.04 |
0.1 |
Wet |
T. sericea |
11.1 ± 0.3 |
0.44 ± 0.2 |
0.43 |
61.3 ± 14.5 |
2.7 ± 0.6 |
0.0 |
Wet |
T. sericea |
21.5 ± 0.4 |
0.34 ± 0.01 |
0.77 |
212.1 ± 46.2 |
3.4 ± 1.0 |
2.0 |
Wet |
T. sericea |
9.0 ± 0.2 |
0.72 ± 0.02 |
0.11 |
41.5 ± 7.3 |
3.3 ± 0.7 |
0.43 |
Int. |
T. sericea |
18.1 ± 0.7 |
0.37 ± 0.02 |
0.90 |
109.3 ± 18.2 |
2.3 ± 0.4 |
0.0 |
Int. |
T. sericea |
10.5 ± 0.4 |
0.27 ± 0.01 |
0.62 |
154.6 ± 9.3 |
4.3 ± 0.3 |
0.4 |
Int. |
T. sericea |
10.1 ± 0.3 |
0.33 ± 0.01 |
0.42 |
215.5 ± 7.6 |
7.4 ± 0.3 |
0.1 |
Int. |
A. mellifera |
8.4 ± 0.2 |
0.45 ± 0.01 |
0.19 |
61.0 ± 5.8 |
3.1 ± 0.4 |
0.3 |
Int. |
A. mellifera |
5.8 ± 0.4 |
0.27 ± 0.02 |
0.77 |
37.7 ± 11.8 |
1.5 ± 0.8 |
1.6 |
Int. |
A. mellifera |
6.6 ± 0.3 |
0.55 ± 0.03 |
0.24 |
32.1 ± 2.5 |
2.7 ± 0.3 |
0.2 |
Dry |
A. mellifera |
3.1 ± 0.2 |
0.66 ± 0.05 |
0.11 |
18.9 ± 3.1 |
4.2 ± 0.8 |
0.1 |
Dry |
A. mellifera |
2.9 ± 0.2 |
0.84 ± 0.08 |
0.08 |
9.0 ± 2.0 |
2.4 ± 0.8 |
0.1 |
Dry |
A. mellifera |
1.9 ± 0.2 |
0.48 ± 0.06 |
0.12 |
16.0 ± 0.4 |
4.0 ± 0.1 |
0.0 |
Dry |
B. albitrunca |
78.5 ± 7.9 |
0.82 ± 0.09 |
4.0 |
10.5 ± 2.6 |
0.09 ± 0.02 |
2.2 |
Dry |
B. albitrunca |
19.9 ± 2.1 |
0.49 ± 0.07 |
1.5 |
7.7 ± 4.4 |
0.20 ± 0.17 |
0.8 |
Dry |
B. albitrunca |
60.7 ± 4.9 |
0.44 ± 0.05 |
4.8 |
8.0 ± 6.2 |
0.10 ± 0.08 |
0.9 |
Table C4. Parameters describing the describing the spatial distribution of coarse root biomass of excavated trees.
|
Site |
Species |
r90 (m) |
z90 (m) |
r90:z90 |
Fraction |
Wet |
O. pulchra |
1.3 |
0.72 |
1.8 |
0.67 |
Wet |
O. pulchra |
1.4 |
0.75 |
1.9 |
0.77 |
Wet |
O. pulchra |
0.7 |
0.81 |
0.84 |
0.96 |
Wet |
T. sericea |
5.3 |
0.87 |
6.1 |
0.67 |
Wet |
T. sericea |
6.9 |
0.68 |
10.0 |
0.58 |
Wet |
T. sericea |
3.2 |
0.70 |
4.5 |
0.66 |
Int. |
T. sericea |
6.3 |
1.0 |
6.2 |
0.44 |
Int. |
T. sericea |
8.6 |
0.54 |
16.0 |
0.39 |
Int. |
T. sericea |
7.0 |
0.31 |
22.4 |
0.45 |
Int. |
A. mellifera |
5.2 |
0.74 |
7.0 |
0.67 |
Int. |
A. mellifera |
8.7 |
1.5 |
5.8 |
0.38 |
Int. |
A. mellifera |
4.2 |
0.86 |
4.9 |
0.66 |
Dry |
A. mellifera |
3.5 |
0.55 |
6.4 |
0.53 |
Dry |
A. mellifera |
2.7 |
0.98 |
2.8 |
0.77 |
Dry |
A. mellifera |
4.8 |
0.58 |
8.3 |
0.48 |
Dry |
B. albitrunca |
2.8 |
1.3 |
2.2 |
0.9 |
Dry |
B. albitrunca |
4.7 |
2.2 |
2.1 |
0.53 |
Dry |
B. albitrunca |
5.3 |
1.1 |
4.7 |
0.4 |