although estimates on the extent of forest loss and change vary among studies the overall picture for the gms is one of rapid forest decline mainly due to forest loss in cambodia and myanmar but at the same time lao pdr thailand and viet nam have experienced forest gain primarily due to the increase in area of other naturally regenerated forests or secondary forests and in the case of lao pdr there has been a reclassification of forest area figure forest cover is still declining in cambodia but the decline is less severe than before forest area in lao pdr has shown some increase in the last fra report lao pdr had reclassified forest area which may explain this change whether actual forest cover has increased is debatable myanmar was the only country where the decline became severe during to