Controlling floods and droughts through underground storage: from concept to pilot implementation in the Ganges River Basin

Abstract

1651985 2015 Research ReportsThe publications in this series cover a wide range of subjects-from computer modeling to experience with water user associations-and vary in content from directly applicable research to more basic studies, on which applied work ultimately depends. Some research reports are narrowly focused, analytical and detailed empirical studies; others are wide-ranging and synthetic overviews of generic problems.Although most of the reports are published by IWMI staff and their collaborators, we welcome contributions from others. Each report is reviewed internally by IWMI staff, and by external reviewers. The reports are published and distributed both in hard copy and electronically (www.iwmi.org) and where possible all data and analyses will be available as separate downloadable files. Reports may be copied freely and cited with due acknowledgment. About IWMIIWMI's mission is to provide evidence-based solutions to sustainably manage water and land resources for food security, people's livelihoods and the environment. IWMI works in partnership with governments, civil society and the private sector to develop scalable agricultural water management solutions that have a tangible impact on poverty reduction, food security and ecosystem health.

대수층 함양관리의 60년간 세계적 진보

“…4), suggesting major opportunities for MAR in these regions. Preliminary investigations in heavily developed Chao Phraya basin of Thailand and in the Ganges Basin of India (Pavelic et al 2015) suggest that widespread MAR at basin scale could have a vital role in managing water variability and reducing water-related disasters (floods and droughts).…”

“…For clogging, in spite of huge progress in understanding mechanisms (e.g. Olsthoorn 1982;Baveye et al 1998;Rinck-Pfeiffer 2000;Perez-Paricio 2001;Pavelic et al 2006a, b;Wang et al 2012;Pedretti et al 2012;Martin 2013;Newcomer et al 2016;Xia et al 2018 among many others), lack of standardized predictive instruments , and the previous lack of adequate water quality monitoring and geochemical, mineralogical and biological evaluations at operational sites has inhibited the formation of better predictive tools and more efficient management. A Working Group of the IAH Commission on MAR has produced one monograph on clogging (Martin 2013), and a subsequent monograph on management of clogging is in preparation to help address this.…”

Underground Transfer of Floods for Irrigation (UTFI): exploring potential at the global scale

“…Developing groundwater storage also has the advantage of causing little or no harm to the environment when compared to large dams (Bouwer 2000). Similar to dams, this storage option could be used to capture excess flows in the wet season and make it available during dry periods, thus mitigating the impacts of floods and droughts (Pavelic et al 2015). The use of groundwater for irrigation has increased in recent decades due to reliability and accessibility of the resource to small farmers, and the lower capital requirement in comparison to surface water systems (GWP 2012).…”

Reviving the Ganges water machine: potential and challenges to meet increasing water demand in the Ganges River Basin

“…• The recharge plan will include recharge w e l l s , w h e r e e a c h w e l l c a p t u r e s a p p r o x i m a t e l y 1 0 , 0 0 0 m 3 / y e a r o f floodwaters in SSS (i.e., 100 m 3 of recharge per day in a maximum of 100 days of recharge during the monsoon season [Pavelic et al 2015]). …”

“…Although this value is used for demonstrational purposes, Pavelic et al (2015) showed that a 50% reduction in flow could reduce the recurrence of severe floods from an interval of 16 to 2 years. Table 6 shows the cost and benefits for a groundwater recharge plan of 7.5 Bm 3 /year over a 10-year period.…”