<Note>Estimating net ecosystem production of tropical forest

Abstract

In recent years, ecologists have focused on estimating Net Ecosystem Production (NEP) to understand the role of forest against increasing concentration of CO2 in the atmosphere, a major concern in research and debates on global warming. This is due to the fact that NEP of a forest is the amount of carbon accumulated in a unit of area and time. In this study, NEP was estimated for tropical evergreen broadleaved forest in Northwestern Vietnam. The results indicated that one hectare of old-growth broadleaved forest can accumulate 2.59 Mg C ha-1 year-1, which is higher than some other forests around the world.