“…A review of literature on typical Imperata grassland in oil palm growing regions reveals AGBs ranging from 3.8 Mg ha -1 to 23.0 Mg ha -1 (Hartemink, 2001;Hashimoto, Kojima, Tange, & Sasaki, 2000;Holmes, Lemerle, & Schottler, 1980;Lasco et al, 2000;NRI, 1996;Otsamo, 2001;Roshetko, Delaney, Hairiah, & Purnomosidhi, 2002;Wibowo, Suharti, Sagala, Hibani, & van Noordwijk, 1997). The average AGB of 11.2 ± 7.3 Mg ha -1 obtained from these data and applied in the following calculations is distinctly higher than the given IPCC range.…”