0023-6152

AA00697606

4772342

The Binh Phuoc Province is located in the highlands of Vietnam with many cascades of reservoirs, including Thac Mo, Can Don, Srok Phu Mieng, and Phuoc Hoa. These reservoirs have brought significant economic benefits to the province, providing huge amounts of hydropower and water resources for agriculture and industry. However, the construction of reservoirs has taken up a lot of land, especially the semi–submerged lands, thereby changing water quality and leading to soil erosion. Afforestation in semi–submerged regions is vital for recovering the soil, preventing erosion, and effectively exploiting the full potential of the land. This study was conducted by performing field investigations, water and soil sampling, and analysis of the adaptive hierarchy for afforestation in the Thac Mo Hydropower Reservoir. The results revealed that the area of semi–submerged land increased significantly from 1585 ha, calculated based on the data of the afforestation project in 2018, to 1835 ha evaluated under the Circular 03/2012/TT–BTNMT, which is a regulation on the management and exploitation of semi–submerged lands in hydropower and irrigation reservoirs implemented by the Vietnamese Ministry of Natural Resources and Environment. This study not only analyzed factors like topography, slope, inundation time, and soil types but also the soil and water quality. The results emphasized that the area of suitable land for afforestation on the Thac Mo Hydropower Watershed is 1806 ha, of which the very adaptive area is 206 ha, the moderately adaptive area is 724 ha, the less adaptive area is 876 ha, and the non–adaptive area is 302 ha. These results can help formulate an efficient afforestation plan in the Binh Phuoc Province.