Urban catchments in Istanbul, such as the Ömerli Catchment, are expected to receive more visitors in the future due to an increase in population, long-term recreational habits, and an insufficient amount of urban green spaces in the metropolitan area. Therefore, estimating the recreation's monetary value is crucial for developing sustainable spatial strategies for urban catchments that take cultural services and provisionary services into account. Although the Ömerli Catchment is a popular location for inhabitants' recreational demands, the previous studies primarily focused on provisioning and regulating services in the catchment. This study investigates the recreational potential and monetary value of this catchment using the random utility travel-cost method. We found that recreational visits depended on three significant factors: visitors' recreational habits, satisfaction and experience with nature, and urban environment. We also found that the consumer surplus is eight times greater than the average travel cost per person per year. This result shows visitors gain greater benefits from recreational visits than their cost to visit the catchment. We hope that decision-makers and practitioners will benefit from the results while developing spatial planning policies by considering urban catchments' recreational potentials.

由于人口增加、长期的休闲习惯以及大都市区的城市绿地数量不足，预计伊斯坦布尔的城市集水区，例如 Ömerli 集水区，未来将接待更多游客。因此，估计娱乐活动的货币价值对于制定考虑文化服务和临时服务的城市集水区的可持续空间战略至关重要。尽管 Ömerli 流域是满足居民娱乐需求的热门地点，但之前的研究主要集中在流域中的供应和调节服务。本研究使用随机效用旅行成本方法调查该流域的娱乐潜力和货币价值。我们发现娱乐性访问取决于三个重要因素：游客的休闲习惯、对自然和城市环境的满意度和体验。我们还发现，消费者剩余是人均每年平均旅行成本的八倍。这一结果表明，游客从休闲访问中获得的收益比访问集水区的成本更大。我们希望决策者和从业者在通过考虑城市集水区的娱乐潜力制定空间规划政策的同时，从结果中受益。