Public participation geographic information systems (PPGIS), though proven valuable in ecosystem services (ES) research, is occasionally criticized for being expensive in terms of time, cost and administration efforts in case the post-hoc sophisticated spatial analytics/statistics are targeted. This study, based on the enhancement of the pre-developed PPGIS analytical framework, seeks to address these critiques by introducing an in-expensive effective data collection strategy, while substantially facilitating geo-spatial analytics. The U Minh Thuong National Park (UMTNP) in the Mekong Delta in Vietnam, a world’s renowned Ramsar site, was chosen to demonstrate the framework. The respondents participated in the participatory mapping on paper maps, using color markers to hand-draw (as polygons) their self-perceived areas associated with different categories ES. By collecting 2D data, the post-hoc spatial analyses could have utilized more meaningful statistical methods. In this study, we introduced the uses of three methods: Ordinary least squares (OLS), Geographically weighted regression (GWR) and Moran’s I to assess the spatial autocorrelation of ES across the landscape. In addition to participatory mapping, the respondents were also engaged in completing a semi-structured questionnaire, which was subsequently analyzed using principal component analysis and hierarchical cluster analysis. These two multivariate analyses serve to reveal the structured diversity of the people’s perceptions towards the importance of different ES. It was shown that Provisioning ES was the most highly regarded benefit, followed by Regulating, Supporting and Cultural. Regulating and Supporting ES, the two indirect material services share relatively similar appreciation patterns while Cultural ES was unexpectedly the least credited, a stark contrast lineagainst the government designated eco-tourism and historical functions of UMTNP. Geographically, the core areas of the national park have the most overlaps between Provisioning and Regulating services. Supporting services, on the other hand, were the most associated with Provisioning and Regulating services in peripheral areas. Cultural services were synergized with the other three types of ES in the areas reserved for eco-tourism activities. The revealed spatial synergies can determine the areas where potential conflicts between extractive and non-extractive uses could occur, contributing insights for sustainable management of UMTNP and other protected areas worldwide. In addition, this study also contributes to promoting the PPGIS method in ES research and other human geographical studies, those relying on community participation.

公众参与的地理信息系统（PPGIS）尽管在生态系统服务（ES）研究中被证明是有价值的，但如果要针对事后复杂的空间分析/统计数据，有时会因时间，成本和管理工作昂贵而受到批评。这项研究基于对预先开发的PPGIS分析框架的增强，旨在通过引入一种廉价的有效数据收集策略来解决这些批评，同时大大促进地理空间分析。越南湄公河三角洲的U Minh Thuong国家公园（UMTNP）被选为世界著名的拉姆萨尔（Ramsar）基地，以展示该框架。受访者参加了纸质地图上的参与式地图绘制，使用颜色标记来手绘（作为多边形）其与不同类别ES相关联的自我感知区域。通过收集2D数据，事后空间分析可以利用更有意义的统计方法。在这项研究中，我们介绍了三种方法的使用：普通最小二乘（OLS），地理加权回归（GWR）和Moran's I来评估景观中ES的空间自相关。除了参与式制图，受访者还参与完成了半结构化问卷，随后使用主成分分析和层次聚类分析对其进行了分析。这两个多变量分析有助于揭示人们对不同ES重要性的看法的结构性多样性。结果表明，Provisioning ES是最受尊敬的收益，其次是规制，支持和文化。规范和支持ES，这两种间接的物质服务享有相对相似的升值模式，而出乎意料的是，文化ES的信誉度最低，这与政府指定的UMTNP的生态旅游和历史功能形成鲜明对比。从地理上讲，国家公园的核心区域在提供服务和规范服务之间有最大的重叠。另一方面，支持服务与外围区域的Provisioning and Regulatory服务联系最紧密。在预留给生态旅游活动的区域中，文化服务与其他三种ES协同作用。揭示的空间协同作用可以确定采掘和非采掘用途之间可能发生潜在冲突的区域，从而有助于对UMTNP和全球其他保护区进行可持续管理。此外，本研究还有助于在依赖社区参与的ES研究和其他人类地理研究中推广PPGIS方法。