The Influence of Climate Change on Rainfall and Rainy Days for Rubber Production of Kusen Clone in Rambang District, Muara Enim Regency

Abstract

Extreme rainfall impacts rubber production, reducing effective tapping days and cumulative annual output and having awide-ranging effect on rubber crop cultivation. This study aimed to find out how rainfall and rainy days affected the rubberproduction of the Kusen clone in Muara Enim Regency’s Rambang District. The study was conducted on a rubber plantationof Kusen clone, which has an area of 1 ha. The initial stage in analyzing the impact of climate change on Kusen clone rubberproduction in Rambang District, Muara Enim Regency, was identifying the independent and dependent variables. The T-testwas conducted to see whether each independent variable partially has a significant effect on the dependent variable. Rubberproduction has fallen year after year, with an average of 205.12 kg/ha in 2019 during the first year of tapping and 118.43in 2023. The coefficient value (r) shows a 27.2% (sufficient correlation) magnitude association between the rainfall andrainy-day variables and the rubber productivity variable of the Kusen clone. In Correlation test results, rainfall and rainydays are strongly associated with producing Kusen clone rubber, as demonstrated by the correlation analysis value of 0.846.Regression research showed that rainfall and rainy days had a statistically insignificant effect on rubber production on therubber clone Kusen in Rambang District, Muara Enim Regency.

Keywords

• climate change
• kusen clone
• rubber