For citation: Sasaki, N., Yoshimoto, A., Benefits of tropical forest management under the new climate change agreement—a case study in Cambodia. Environ. Sci. Policy (2010), doi:10.1016/j.envsci.2010.04.007
1. Forests in Cambodia
The Cambodian government defines forests for the United Nations Convention on Climate Change (UNFCCC) as land having forest canopy cover of 10% and tree height of 5 m and estimated that forests covered 10.9 million ha or 59.1% of the country’s total land area in 2006 (Technical Working Group on Forestry and Environment, 2007) declining from 11.3 million ha in 2002. Total forest cover is comprised of deciduous forest (43.2%), evergreen forest (33.8%), semi-evergreen or mixed forest (12.5%), and mangrove and freshwater-flooded forests (8.9%). Wood shrubland, bamboo, and forest plantations cover only a small proportion of the total forest area (Fig. SM1). Because deforestation and uncontrolled logging continue, many important tree species in Cambodia have been placed on the International Union for Conservation of Nature (IUCN) Red List (So, 2004). In addition to these important tree species, Cambodia’s forests are also home to a unique but critically endangered species of Kouprey or wild cow (Bos sauveli).
By law, commercial logging is allowed only in evergreen, mixed, and deciduous forests. Because of their ecological, social, and environmental importance, mangrove and freshwater-flooded forests were designated as protected areas by Royal Decree in 1993, along with an additional 3.1 million ha of forests. As of 2010, this protection was still in effect. At present, there are 16 forest concessions covering a total of 3.4 million. The remainder is for unspecified purposes, such as for population resettlement and for plantations of rubber, teak, oil palm, eucalyptus or acacia, and other industrial crops. A selective felling cycle of 25 years is allowed in Cambodia. In response to illegal logging (67% of all harvested timber as reported by DAI [1998]), the lack of technical capability, and the suggestions of the international community, logging operations in Cambodia were temporarily suspended in 2002, and this suspension remains in effect today. However, as a result of the lack of proper ownership rights to protect the suspended forest concessions coupled with an increase in unregulated land concessions granted for industrial crop plantations (MAFF, 2010), land clearing and anarchic land encroachments have been reported across the country (Ty, 2005).
Prior to the late 1980s, Cambodian forests were fully stocked with highly commercial timber species (in terms of tree species composition, stem density, and stand volume) because of inaccessibility as a result of prolonged decades of civil wars, landmines, and the total lack of rural security. Coincident with the logging ban in Thailand and the withdrawal of Vietnamese troops from Cambodia in 1989, logging by all Cambodian fighting factions intensified along the borders with Thailand, Laos, and Vietnam. Since the 1991 Paris Peace Accord ending the civil wars in Cambodia, internationally supported industrial logging activities began, and almost all of the highly valued forests were logged intensively at highly unsustainable logging rates (World Bank, 2006). Cambodian forests are owned by the government’s Forestry Administration (FA), and the FA grants concession rights to logging companies through public bidding. The FA also recognizes prescribed access and use rights of local and indigenous communities (FA, 2006). About 92% of the Cambodian population lives in rural areas and depends on fuel wood from forests for daily cooking and warmth; this makes forests an important resource for sustainable development in Cambodia. The success of future REDD-plus agreements in Cambodia as well as in other developing countries depends on taking into account the needs of the rural population.
Due to its high stocks of commercial and valuable timber species compared to mixed and deciduous forests (Kim Phat et al. 2000, 2002a, 2002b), a large area of evergreen forest has been logged legally and illegally over the last three decades. Such unsustainable logging has caused rapid degradation, and in the worse case, the loss of evergreen forest to industrial crop plantations. This report has been prepared as supplemental material to the published article. In this supplemental report we describe the forest inventory data, data analysis, and results for use in the main article.
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