The impact of land-use changes and economic losses of paddy field conversion: a case study of Ciampea Sub-district, Bogor Regency, West Java Province

Abstract

Abstract The study aims to analyze the land-use changes from paddy fields to non-paddy fields, examine the future sustainability of the paddy fields, and analyze the impact of the paddy fields’ conversion on the socio-economic and environmental aspects. The study was carried out at Ciampea Sub-district, Bogor Regency, West Java Province. Conversion of paddy fields was analyzed through visual interpretation of Ciampea Sub-district 2016 and 2019 imageries using GIS software of ArcGIS 10.5. and later was used to measure the average annual conversion rate and predict the future sustainability of the paddy field, and to measure the impact of the land conversion using the economic valuation method (financial analysis and replacement cost approach). The results showed that, first, during the year of 2016 to 2019, the paddy fields in Ciampea Sub-district transformations were dominated by settlements. Second, the conversion rate was relatively high, by 51.45 hectares per annum. Third, the impact of reduction of paddy field area was relatively high: a potential loss of 3,098.06 tons of food crop production. Meanwhile, the cost for replacing the function of flood, erosion, and sedimentation control reached IDR 257.68 billion.