This research presents an approach to assess the ecosystem services (ES) flow in the Oualidia lagoon in Morocco combining geographic information systems (GIS) and the analytic hierarchy process (AHP). We evaluated the flow of 15 ES divided into regulating, provisioning, and cultural categories in 20 CORINE land-cover classes found in the lagoon area. To determine the total ES flow, we used an expert-based scoring approach for each of the CORINE LULC classes. Geographically the results comprised not only the immediate lagoon proximity but also area south of the lagoon. The highest combined ES flows were estimated in the forested, semi-natural (beaches and dunes), and agriculture areas, as well as water features (ocean and lagoon channel), while in artificial areas the ES delivery was the lowest. We expect our results to serve as a guide for land planners and decision-makers, providing an example of support for the nature management strategy for other coastal regions in Morocco and elsewhere.

这项研究提出了一种结合了地理信息系统（GIS）和层次分析法（AHP）来评估摩洛哥Oualidia泻湖中生态系统服务（ES）流量的方法。我们评估了在泻湖地区发现的20种CORINE土地覆盖类别中15种ES的流量，这些ES分为调节，供应和文化类别。为了确定总的ES流量，我们对每个CORINE LULC类使用了基于专家的评分方法。从地理上讲，结果不仅包括紧邻泻湖，而且还包括泻湖以南地区。在森林，半自然（海滩和沙丘）和农业地区以及水特征（海洋和泻湖河道）中，估计的ES总流量最高，而在人工地区，ES的输送量最低。