Table 2 Proportions (%) of nodulating species aboveground biomass and plant density in relation to those of all Leguminosae and all tree and large shrub species and proportion of Leguminosae in relation to all tree species in young and old stands of tropical forests under different environmental conditions in Northeast Brazil
Forest | Nodulating/Leguminosae | Nodulating/all | Leguminosae/all | |||
|---|---|---|---|---|---|---|
Young | Old | Young | Old | Young | Old | |
Biomass | ||||||
Humid coastal | 99.6 | 25.7 | 25.3 | 3.3 | 25.4 | 12.7 |
Sub-humid high fertility | 73.6 | 71.5 | 36.1 | 30.4 | 49.1 | 42.5 |
Sub-humid low fertility | 97.6 | 85.4 | 81.0 | 58.2 | 83.0 | 68.1 |
Humid montane | 28.8 | 46.7 | 6.7 | 14.4 | 23.1 | 30.9 |
Semi-arid high fertility | 89.0 | 56.4 | 81.6 | 16.8 | 91.6 | 29.7 |
Semi-arid low fertility | 1.3 | 1.7 | 0.9 | 0.4 | 70.4 | 24.2 |
Density | ||||||
Humid coastal | 99.6 | 40.0 | 26.7 | 4.0 | 26.8 | 10.0 |
Sub-humid high fertility | 59.6 | 46.1 | 23.7 | 19.2 | 39.8 | 41.8 |
Sub-humid low fertility | 90.0 | 70.1 | 87.2 | 53.9 | 96.9 | 76.9 |
Humid montane | 29.0 | 23.6 | 7.3 | 3.3 | 25.1 | 14.0 |
Semi-arid high fertility | 85.6 | 39.8 | 70.6 | 12.3 | 82.4 | 30.8 |
Semi-arid low fertility | 4.1 | 2.5 | 1.8 | 0.8 | 44.5 | 30.4 |