Carrying Capacity of Grompol Watershed Settlements, Central Java

摘要

Settlements within the watershed will be damaged by natural disasters if the carrying capacity has been exceeded, so research is needed to determine the limits of the carrying capacity of settlements in the watershed so that natural disasters can be minimized. The purpose of this study is to determine the limit of the carrying capacity for settlements in the Grompol watershed. Data on rainfall, soil type, and contours were collected from the BPDAS Solo and BIG. The data obtained were then analyzed into rainfall intensity using the Spline method, erodibility based on BPN soil types and slope classes using the Surface Analysis with Slope method, then the three criteria were overlaid based on Decree of Minister of Agriculture Number 837 / KPTS / UM / II / 1980, so that the region use of the settlement area can be obtained. After that, the settlement suited region will be analysed based on disaster-prone areas. Settlement carrying capacity is calculated from the settlement suited region divided by population and space / capita needs. The result of calculation of settlement carrying capacity is obtained DDPm = 1.23. This condition shows that the carrying capacity for settlements is still high and can support the growth of settlements.