In a significant advancement for water resource management, researchers have applied the base flow index (BFI) to evaluate stream flow regimes and basin water storage amid hydrological drought conditions in Lorestan Province, Iran. This study, led by Kazem Nosrati from the Department of Physical Geography at Shahid Beheshti University, offers crucial insights that could reshape how water, sanitation, and drainage sectors approach drought preparedness and response.
Over a comprehensive 35-year period, the team analyzed daily BFI data across 24 gauging stations, revealing a regional mean BFI of 0.77, indicating a stable stream flow regime. With values ranging from 0.61 to 0.95, the findings categorize most catchments in Lorestan as having a stable regime capable of sustaining river flow even during dry spells. “Our results suggest that these catchments can reliably provide water during periods of low rainfall, which is critical for both ecological balance and human needs,” Nosrati stated.
The implications of this research extend beyond academic interest. As global water scarcity becomes an increasing concern, understanding the dynamics of river flow can inform better management practices and infrastructure investments. For municipalities and industries reliant on consistent water supply, the ability to predict and monitor hydrological droughts can lead to more resilient systems. This could mean enhanced planning for water storage facilities, improved irrigation strategies, and more effective responses to water shortages.
Furthermore, with the BFI serving as a valuable tool for hydrological drought monitoring, stakeholders in the water sector can better allocate resources and develop strategies that mitigate the impacts of drought. “By classifying stream flow regimes, we can prioritize areas that need immediate attention or investment, ensuring that communities are better equipped to handle water scarcity,” Nosrati added.
This research, published in ‘Sustainable Earth Trends’, underscores the necessity for ongoing studies in hydrology and water management, particularly in regions vulnerable to climate variability. As the water sector continues to innovate, findings like these could pave the way for more sustainable practices that not only address current challenges but also prepare for future uncertainties. For more information on this research, visit Shahid Beheshti University.
