INTEGRATION OF GEOELECTRICAL AND ELECTROMAGNETIC INDUCTION METHODS FOR ANALYSIS OF WATER AVAILABILITY TO SUPPORT AGRICULTURAL MANAGEMENT OPTIMIZATION IN GIRIMUKTI VILLAGE, NORTH SUMEDANG DISTRICT, SUMEDANG REGENCY, WEST JAVA

• Main Author: Siswo Wicaksono, Rofidzias
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/86832
• Institution: Institut Teknologi Bandung

Agriculture in Indonesia has become the main commodity to support the domestic economy. Supported by Indonesia's location near the equator, the country only has two seasons, namely the rainy season and the dry season, which makes it easier for farmers to determine the harvest season. However, this is not the only reason that makes Indonesian agricultural products of the highest quality. Many farmers in Indonesia complain that the current problem is the competition with agricultural products from outside Indonesia. The solution to this problem is to apply two agricultural concepts, namely Precision Agriculture and Sustainable Agriculture. In the application of these two concepts, an initial step is needed, which is mapping the water content using geophysical methods in a rice field in Sumedang, West Java. This research is conducted using Electromagnetic and Geoelectric measurement methods, followed by Quasi-3D modeling to map the resistivity of the research area with a conductivity map from horizontal Electromagnetic Induction and a conductivity map from vertical Geoelectric. The results obtained from measurements using both methods show the same trend, where low water content is found at shallow depths and high-water content increases to a depth of 4.56 meters is marked by an increase in conductivity and a decrease in water content towards the northern part of the research area, indicated by a decrease in conductivity values from 23.46 to 9.1 mS/m.