The Impact of Climate Change on Crop Water Requirement for Crops on Dryland Area: A Case Study for Coffee Plantation in Sumbermanjing Wetan

Sumbermanjing Wetan area has the potential for coffee production, but changes in rainfall patterns and climate can impact water availability for coffee plants. Therefore, it is important to assess the water needs of coffee plants in order to understand their resilience to climate changes, optimize water usage, and increase productivity. This study aimed to evaluate the water needs of coffee plants in Sumbermanjing Wetan and analyze the issues related to water availability and climate change that affect coffee production in the area. The study found that the water needs of coffee plants were not being met due to low effective rainfall. This resulted in a decrease in soil moisture content during the crucial growth phase of coffee plants, leading to a decline in coffee production by 11.4% in the 1998-2018 period and 15.8% in the 2019-2021 period.