Appendix A. Basal area (BA), relative basal area (RBA), mean dbh (dbhmean), and maximum dbh (dbhmax) of trees ≥ 2 cm dbh for the main tree species in each of the three Acer platanoides (ACPL) and Ailanthus altissima (AIAL) study sites.
ACPL |
Site 1 |
Site 2 |
Site 3 |
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Species |
BA |
RBA |
dbh mean |
dbh max |
BA |
RBA |
dbh mean |
dbh max |
BA |
RBA |
dbh mean |
dbh max |
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Acer platanoides |
2.59 |
8.72 |
12.2 |
47.6 |
5.97 |
14.28 |
25.1 |
101.8 |
2.23 |
5.34 |
12.9 |
50.7 |
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Acer saccharum |
12.25 |
39.18 |
10.8 |
81.6 |
7.56 |
18.01 |
10.6 |
113.4 |
5.26 |
11.80 |
9.06 |
71.7 |
|||
Acer rubrum |
0.08 |
0.24 |
12.3 |
28.0 |
1.03 |
2.78 |
14.8 |
46.4 |
3.05 |
7.14 |
13.7 |
65.1 |
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Fraxinus americana |
4.21 |
13.45 |
23.5 |
66.6 |
6.32 |
16.03 |
31.8 |
99.7 |
10.82 |
24.77 |
30.9 |
71.5 |
|||
Pinus strobus |
0.75 |
2.18 |
28.6 |
57.1 |
6.22 |
14.62 |
42.7 |
78.5 |
5.90 |
14.46 |
31.1 |
94.5 |
|||
Prunus serotina |
3.04 |
9.29 |
28.5 |
62.8 |
5.37 |
13.44 |
29.5 |
69.0 |
10.04 |
23.19 |
34.1 |
75.5 |
|||
Quercus rubra |
7.23 |
22.02 |
32.9 |
98.7 |
6.78 |
16.06 |
39.6 |
94.6 |
4.94 |
11.78 |
37.3 |
75.7 |
|||
Others |
1.63 |
4.97 |
9.3 |
56.7 |
1.77 |
4.78 |
8.1 |
38.4 |
0.63 |
1.54 |
11.5 |
45.5 |
|||
Total BA |
31.78 |
41.02 |
42.87 |
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AIAL |
Site 4 |
Site 5 |
Site 6 |
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Species |
BA |
RBA |
dbh mean |
dbh max |
BA |
RBA |
dbh mean |
dbh max |
BA |
RBA |
dbh mean |
dbh max |
|||
Acer saccharum |
7.11 |
21.08 |
23.3 |
143.0 |
10.70 |
35.65 |
9.5 |
79.1 |
4.41 |
19.29 |
12.6 |
80.2 |
|||
Ailanthus altissima |
9.65 |
31.22 |
19.9 |
54.8 |
2.36 |
28.39 |
21.6 |
37.9 |
8.18 |
32.33 |
24.6 |
47.3 |
|||
Betula spp. |
0.11 |
0.31 |
19.7 |
43.8 |
2.17 |
7.67 |
22.2 |
54.0 |
2.78 |
9.38 |
20.7 |
46.2 |
|||
Fraxinus americana |
4.16 |
13.04 |
20.8 |
66.9 |
1.68 |
6.41 |
25.9 |
56.0 |
2.97 |
17.35 |
14.9 |
40.0 |
|||
Prunus serotina |
0.40 |
1.21 |
15.7 |
35.7 |
2.70 |
9.06 |
31.6 |
67.6 |
0.94 |
4.20 |
16.1 |
64.3 |
|||
Quercus rubra |
1.56 |
4.97 |
108.5 |
108.5 |
0.45 |
1.56 |
41.3 |
72.2 |
0.65 |
2.08 |
33.2 |
78.7 |
|||
Robinia pseudoacacia |
5.78 |
20.15 |
50.0 |
101.8 |
6.24 |
19.74 |
41.6 |
96.5 |
------ |
------ |
------ |
------ |
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Others |
2.58 |
8.13 |
13.5 |
55.8 |
3.56 |
11.52 |
13.1 |
58.8 |
3.35 |
13.51 |
12.4 |
69.5 |
|||
Total BA |
31.35 |
29.82 |
23.28 |
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Note: Only tree species with a RBA ≥ 5% at least in one of the three sites invaded by ACPL or AIAL are shown.