Global food security depends on the sustainability of irrigated agriculture. Rising groundwater withdrawals from seasonally humid, alluvial plains across tropical Asia have enabled dry-season rice cultivation. This groundwater pumpage increases available subsurface storage that under favorable conditions amplifies groundwater replenishment during the subsequent monsoon. We empirically quantified this nature-based solution to seasonal freshwater storage capture described as the “Bengal Water Machine,” revealing its potential and limitations. On the basis of a million piezometric observations from 465 monitoring wells, we show that the collective operation of ~16 million smallholder farmers in the Bengal Basin of Bangladesh from 1988 to 2018 has induced cumulative freshwater capture that volumetrically (75 to 90 cubic kilometers) is equivalent to twice the reservoir capacity of the Three Gorges Dam.
Solar irrigation technology has the potential to empower more than 12 million women farmers across Nepal who constitute the backbone of the country’s farming system. The post Empowering female farmers through improved access to water technologies first appeared on International Water Management Institute (IWMI). [more...]
The World Bank and IWMI will rapidly scale climate science to support agri-business in Zambia, tackling the climate challenge head on through the new AICCRA-Zambia Accelerator Grant. The post Agriculture climate science in Zambia gets boost with launch of new World Bank-backed grant first appeared on International Water Management Institute (IWMI). [more...]
During COP26 and beyond, IWMI will continue to advance a wide range of water-focused climate solutions and develop a diverse set technical, policy, and financial tools. The post Four ways IWMI is using water to advance climate adaptation and mitigation around the world first appeared on International Water Management Institute (IWMI). [more...]
As a result of IWMI’s work in the realms of e-flow monitoring and aquifer recharge, water management for rivers and aquifers has been strengthened. The post How water can boost environmental health and biodiversity first appeared on International Water Management Institute (IWMI). [more...]
Water is running out in Central Asia. New approaches to water regulation, energy production, and agricultural education are necessary to be able to feed the region. The post Thinking Hydrologically first appeared on International Water Management Institute (IWMI). [more...]