Table 5. Comparison of the Rabi, Gabon plot to other African CTFS plots and to tropical plots in South America and Asia, as well as two temperate plots in the USA.
African CTFS plots have a higher proportion of small-diameter trees than other tropical plots, and many more than temperate plots. Z represents the negative exponent of the abundance-diameter relationship (see Methods).
| CTFS-ForestGEO Site | Country | Area (ha) | Census year | Trees dbh≥ 1cm (Ind./ha) | Trees dbh<10 cm (Ind./ha) | Trees dbh≥ 10 cm (Ind./ha) | Trees dbh<10 cm (%) | Z |
|---|---|---|---|---|---|---|---|---|
| Rabi | Gabon | 25 | 2013 | 7,026.4 | 6,579.7 | 446.8 | 93.6 | 2.6 |
| Ituri-Lenda | DR Congo | 20 | 1995 | 6,843.6 | 6,486.0 | 357.6 | 94.8 | 2.1 |
| Ituri-Edoro | DR Congo | 20 | 1995 | 8,112.1 | 7,673.5 | 438.6 | 94.6 | 2.1 |
| Sinharaja | Sri Lanka | 25 | 1995 | 8,215.0 | 7,537.5 | 677.5 | 91.8 | 2.1 |
| Korup | Cameroon | 50 | 1999 | 6,580.6 | 6,070.7 | 509.9 | 92.3 | 2.0 |
| Lambir | Malaysia | 52 | 1997 | 6,915.5 | 6,277.5 | 638.0 | 90.8 | 2.0 |
| BCI | Panama | 50 | 2000 | 4,276.1 | 3,852.0 | 424.1 | 90.1 | 1.9 |
| Pasoh | Malaysia | 50 | 2000 | 6,118.9 | 5,553.3 | 565.6 | 90.8 | 1.9 |
| Yasuni | Ecuador | 25 | 1997 | 6,094.2 | 5,392.3 | 701.9 | 88.5 | 1.9 |
| Mudumalai | India | 50 | 2000 | 360.5 | 109.0 | 251.6 | 30.2 | 1.2 |
| Yosemite | USA | 25.6 | 2010 | 1,346.1 | 818.1 | 528.0 | 60.8 | 2.0 |
| Wind River | USA | 25.6 | 2011 | 1,209.9 | 884.7 | 325.3 | 73.1 | 1.8 |