2.2. Sampling plot selection and species composition
Field studies were undertaken from August 2010 until December
2011. Five study sites were selected. The first was in a typical
primary forest (PF) in the Kog Ma Experimental Watershed area
(Fig. 1). The next two were in secondary forests, which had been
cultivated and then abandoned approximately 30 years previously:
an abandoned area far from villages in an area that had not been