The impact of land use changes on carrying capacity of sampean watershed in Bondowoso Regency

Sugiyarto, S and Hariono, B and Wijaya, R and Destarianto, P and Novawan, A (2018) The impact of land use changes on carrying capacity of sampean watershed in Bondowoso Regency. IOP Conference Series: Earth and Environmental Science, 207 (012005). ISSN 1755-1315

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Abstract

Sampean watershed which covers Bondowoso and Situbondo areas is a watershed which has a role in the rice provision for Bondowoso and East Java. The development activities in Sampean watershed both upstream and downstream are classified into highly intensive, while the population growth is quite high. The changes in land use, the increases of residential areas in upstream, midstream and downstream areas, have contaminated Sampean watershed with pollutants which could affect the agricultural products. Related to that, the specific objectives of this study were: 1) To find out the changes in land use in Sampean watershed area; 2) To know the total land requirements and the area of rice equivalent land available in Sampean watershed area to support the people's life; and 3) To know the carrying capacity of Sampean watershed in Bondowoso region. The comparison method to compare between availability and land requirements was used as a tool to analyze the carrying capacity of Sampean watershed area so that it could provide an overview of the impact of land use change. The results of data analysis showed that the Land Carrying Capacity of Bondowoso regency reached surplus around 206,708 ha. Meanwhile, the areas with deficits in Carrying Capacity were Grujugan sub-district (-1,213 ha), Tamanan (-147 ha), Tlogosari (-3,181 ha) and Bondowoso (-15,422 ha).

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