Examining groundwater productivity and efficiency in the Malwa region of the Central Punjab, India
摘要
Groundwater depletion in India is an alarming concern that threatens agricultural sustainability, especially in the Punjab region, where groundwater extraction is at its peak compared to other agricultural states in India. The present research studies the two districts of the Malwa region in Central Punjab: Sangrur, the most depleted, and Barnala, the least depleted. This present study assesses the level of groundwater depletion, irrigation water productivity, and groundwater efficiency in these regions. The study employs an approach that combines primary data collected through multi-stage random sampling of farmers with secondary data obtained from official statistics reports to assess irrigation water productivity, crop-specific returns, and efficiency levels for wheat and paddy cultivation (A guide to DEAP version 2.1: a data envelopment analysis (computer) program Centre Efficiency. Prod Anal Univ N Engl Austr. 96:08 1–49, 1996) [