many disputes. Previously, the government aimed to exploit the Central Highlands of Vietnam by establishing a system of state-owned agriculture and forestry farms (before 1993, there were major agricultural-forestry-industry Union Enterprises, which switched to central or provincial agriculture and forestry farms after the same year). In reality, these economic organizations control most of the Central Highlands’ land. In Dak Lak province, by 1985, three agricultural-forestry-industry Union Enterprises managed 1,058,000 hectares, which accounted for half of the province's area, plus 1,600,000 hectares of state-owned rubber tree growing area. In total, the state runs 90% of Dak Lak’s area, and 60% of Gia Lai’s. Overall, by 1985, 70% of the Central Highlands’ surface area was under the state's management. After 1993, although there was a shift in management mechanism, this number only decreased by 26%. Forest resources and forestry land areas in Tay Nguyen are facing the risk of serious attenuation due to different reasons, such as small unowned area of deep forest is being trespassed by newly arrived migrants for residential and production purposes (which rapidly increases the agricultural land in the whole region), as well as deforestation and illegal exploitation of forest products. Due to the attenuation of forest resources, the output of logging has constantly been decreasing, from 600 to 700 thousand square meters in the late 1980s - early 1990s to about 200-300 thousand square meters per year at the moment. Currently, local authorities are experimenting with allocating, leasing forestry land to organizations, households and individuals for stable usage and forest allocation, and contracting to forests protection for households and communities in the villages. With the geographical advantages of highland and numerous waterfalls, hydropower resources of the area are large and are used effectively. Two hydroelectric power stations built in this region before are Da Nhim (160.00 kW) on Da Nhim River (source of Dong Nai River) and Dray H’inh (120.000 kW) on Serepok River. Moreover, the Yaly Hydropower Project has been in operation since 2000; other projects such as Bon Ron-Dai Ninh and Play Krong have been expected to build recently. Tay Nguyen (the central highland of Vietnam) does not abound in mineral resources but is abundant in bauxite reserves measuring at billions of tons. According to old Soviet documents, the Central Highlands holds about 8 billion tons of bauxite reserve. On November 1, 2007, the Prime Minister signed Decision no.167 to approve the zoning plan for