According to a 2005 report conducted by the Food and Agriculture Organization of the United Nations (FAO), Vietnam has the second highest rate of deforestation of primary forests in the world, second only to Nigeria.[1] The use of defoliants during the Vietnam War had a devastating and long-lasting impact on the country's forests and ecology,[2] affecting 14-44% of total forest cover, with coastal mangrove forests being most affected.[3]
However, regarding total forest cover, Vietnam has undergone a forest transition: its forest cover has increased since the early 1990s, after decades of deforestation.[4] As of 2005, 12,931,000 hectares (the equivalent of 39.7% of Vietnam's land cover) was forested, although only 85,000 hectares (0.7% of the land cover) was primary forest, the most biodiverse form of forest.[5]