Economic valuation of clean water ecosystem services as the impact of opening forest areas into upland coffee plantations Buay Pemaca of South Ogan Komering Ulu Regency: By replacement cost method

The existence of forests is very important for the survival of human life. Forest provides many benefits such as providing water sources, producing oxygen, place where millions of flora and fauna live, besides that forests also play a role as an environmental balancer and prevent global warming. The clearing of forest areas into upland coffee plantations in Buay Pemaca District greatly affects the biophysical conditions of the environment, especially hydrological conditions and water management arrangements. highland coffee plantations are characterized by various topophysiographic and biophysical factors, such as relatively steep slopes, soil sensitivity to landslides and erosion, relatively high rainfall, and others. Mistakes in the management and utilization of land resources in this area can cause damage or biophysical stress in the form of degradation of soil fertility and the availability of clean water. The purpose of this study was to determine the economic valuation of the need for clean water that must be paid by the community as a result of the clearing of forest areas into highland coffee plantations in Buay Pemaca, South Ogan Komering Ulu Regency. The method used is descriptive method using the economic valuation method of replacement cost (Replacement Cost). The number of samples was 270 samples are 5 villages, namely Mekarjaya Village, Sinar Napalan, Durian Sembilan, Danau Jaya and Sido Rahayu. The results of the study found that the use of clean water at the study site was 59,088 m3 per year with the water sources used were wells and hill water. The cost of installing water is IDR 205,500,000 or an average of IDR 3,828,027. The amount of replacement cost that must be paid by the community for the clean water needed by the community is IDR 395,601,600 or an average of IDR 7,349,121.