Abstract :
The purpose of this study was to find a real variable to be the difference between poor and non- poor groups in the karst ecosystem. The research was located in Girisubo Sub-district, Gunungkidul District, Yogyakarta. The study was conducted in 2018 by using primary and secondary data. The primary data were obtained from in-depth interviews and the secondary data were obtained from related institutions. These two data were analyzed by using farming income analysis and discriminant analysis. The conclusions of this study were (1) the real variables that differentiate poor and non-poor groups were rice and peanut, the coefficient determination of rice farming income variable is 0.02 and the variable of peanut farming income is 0.056 and (2) peanut was more important than rice. As a suggestion, a peanut is a good commodity to be developed. Peanut is a commodity that does not need much water. Rice crop management must be considered, rice makes negative income for the poor group, but it makes positive for the non-poor one