Economic valuation of mangrove forests at Secanggang, Langkat

Abstract

Mangrove forest is the main life-supporting ecosystem for organisms in coastal and marine areas. It got serious pressure as the impact of land conversion. The objective of the study was to analyse the total economic valuation of mangrove forest in Secanggang, Langkat. The number of samples is determined as many as 30 by using cluster sampling. Data were analysed using economic valuation techniques for calculating the total value of the mangrove ecosystem. Total economic value is carried out by interviewing each respondent to estimate economic value, namely the direct use value, the indirect use value, and the option value of the mangrove forest. The total economic value is IDR 22,497,463,608 per year. It is obtained from direct use value is IDR 4,662,525,000 per year, indirect use value amounted IDR 17,507,736,480 per year, while option value amounted IDR 327,202,128 per year. Direct use value comes from the benefits of the firewood, shrimp, fish, and crab utilization. For the indirect use value was obtained from retaining abrasion and provider of fishery resources, i.e. shrimp feed resource and the option value was obtained by calculating the value of biodiversity in the mangrove ecosystem.