Print Email Facebook Twitter Model-Based Assessment of Preventive Drought Management Measures’ Effect on Droughts Severity Title Model-Based Assessment of Preventive Drought Management Measures’ Effect on Droughts Severity Author Paez Trujillo, A.M. (TU Delft Water Resources; IHE Delft Institute for Water Education) Corzo, Gerald A. (IHE Delft Institute for Water Education) Maskey, Shreedhar (IHE Delft Institute for Water Education) Solomatine, D.P. (TU Delft Water Resources; IHE Delft Institute for Water Education; RAS Water Problems Institute) Date 2023 Abstract Preventive Drought Management Measures (PDMMs) aim to reduce the chance of droughts and minimize drought-associated damages. Selecting PDMMs is not a trivial task, and it can be asserted that actual contributions to drought alleviation still need to be adequately researched. This study evaluates the effects of three potential PDMMs, namely, rainwater harvesting ponds, forest conservation, and check dams, on agricultural and hydrological drought severity. The Soil Water Assessment Tool is used for hydrological modeling and representing PDMMs. The threshold level method is applied to analyze droughts and evaluate the impact of PDMMs on drought severity. Findings show that rainwater harvesting ponds applied on agricultural land reduce the severity of agricultural droughts and hydrological droughts, particularly during the first months of the drought events observed in the rainy season. Results also reveal that forest conservation contributes to reducing the severity of hydrological droughts by up to 90%. Finally, check dams and ponds in upstream subbasins considerably reduce agricultural and hydrological drought severity in the areas where the structures are applied; however, they exacerbate drought severity downstream. The analysis was developed in the Torola River Basin (El Salvador) for the period spanning 2004 to 2018. Subject agricultural droughthydrological droughtdrought management measuresrainwater harvestingforest conservationcheck dams To reference this document use: http://resolver.tudelft.nl/uuid:d0301ccd-1023-4887-a21d-2922e93b5798 DOI https://doi.org/10.3390/w15081442 ISSN 2073-4441 Source Water, 15 (8) Part of collection Institutional Repository Document type journal article Rights © 2023 A.M. Paez Trujillo, Gerald A. Corzo, Shreedhar Maskey, D.P. Solomatine Files PDF water_15_01442_v2.pdf 45.67 MB Close viewer /islandora/object/uuid:d0301ccd-1023-4887-a21d-2922e93b5798/datastream/OBJ/view