The Linkage of Rainfall Anomaly due to El Nino Southern Oscillation (ENSO) on Cassava Productivity in Central Java Province

Abstract

El Nino Southern Oscillation (ENSO) is a global climate phenomenon that affects the climate of a region and causing climate anomalies. ENSO can cause rainfall anomalies that have an impact on the agricultural sector. Cassava is one of the plants known as climate-resistant plants. Cassava has high productivity and is almost evenly distributed in Central Java Province. This study aims to determine the relationship between rainfall anomalies due to ENSO and cassava productivity in Central Java from 1990-2019 at each different ENSO phase. El Nino in weak, moderate, and strong phases triggers a decrease in annual rainfall intensity with an even distribution from the north and becomes softer towards the south of the province. When La Nina begins, the intensity of rainfall increases with a strong intensity starting from the south side and weakening towards the province’s north. The increase in rainfall during the La Nina phase tends to increase cassava productivity and the El Nino phase tends to decrease cassava productivity, although there are case findings in certain areas.