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00925njm 22002777a 4500 dc Aristizábal, H.F. author Martínez Santos, Pedro author 2019 Wetlands are vulnerable to groundwater extraction, which has proven detrimental to aquatic ecosystems around the planet. As wetlands rank among the world’s most endangered ecosystems, versatile strategies are required to protect them. This paper provides a modelling-based method to delineate protection buffers in wetlands subject to groundwater extraction. The technique is sufficiently flexible to cater to a wide variety of conditions, and simple enough to underpin management decisions on a daily basis. A numerical model is used to obtain a map of the critical rate of groundwater abstraction, based on the distance between wetlands and suitable discharge thresholds. The outcomes determine the allowed pumping rate at any point under steady and transient-state conditions. A new iteration is developed every time a new pumping allowance is made. This procedure is demonstrated by means of hypothetical scenarios, as well as by a case study application in the Valle del Cauca region, Colombia. 0262-6667, ESSN: 2150-3435 10.1080/02626667.2019.1610564 https://hdl.handle.net/20.500.14352/13560 https://www.tandfonline.com/doi/abs/10.1080/02626667.2019.1610564?journalCode=thsj20 An iterative technique to delineate protection buffers for wetlands in regions subject to intensive groundwater pumping