抄録
Intensive cropping of rice has supported a high population density in the Sundanese society of West Java, although the cropping system has changed in some regions due to the introduction of cash crops. We studied cropping systems in 2 communities (Ciparia and Lebak Tulang) in Rancakalong Subdistrict. Ciparia has maintained the indigenous multiple cropping system of rice, whereas rotation cropping of rice and sweet potato was observed in Lebak Tulang, where the cash economy has a stronger influence. Although sweet potato is a profitable cash crop, it was not adopted by people in Ciparia, as they prioritized synchronization of the timing of their rice harvest to minimize damage from rats and birds. All households in Ciparia maintained strong social bonds of kinship or marriage, regardless of economic status. In contrast, the households in Lebak Tulang were not connected by kinship; thus, each household was able to prioritize its income independently.
