Cultural ecosystem services (CES) of urban wetland parks (UWPs) can be priced according to monetary values. Urban green and blue spaces (UGS and UBS, respectively) provide stands of nature in UWPs, wherein visitors’ emotions related to the enjoyment of CES values can be assessed through analyzing the facial expressions of visitors. In this study, a total of 98 UWPs were selected as study stands in Jiangxi, where a total of 1749 photographs showing facial expressions were obtained from Sina Weibo for local visitors experiencing UGS and UBS in 2021. The CES of UBS were evaluated at a widely used price of USD 881 ha−1 yr−1, and those of UGS were evaluated at USD 1583 ha−1 yr−1. The averaged CES values were estimated to be USD 941.26 and 39.54 thousand yr−1 for UGS and UBS per UWP in Jiangxi, respectively. The large number of UGS in an UWP had no relationship with the examined facial expressions; however, areas of UBS and, accordingly, the CES values therein, can both be perceived and exposed as positive emotions. CES in UBS only accounted for lower than 5% of that in a UWP, whereas those in UGS together explained over 95%. Overall, people smiled more when perceiving the values of services in UBS of UWPs than when experiencing UGS.

A sustainable urban park should have balanced green space (GS) supply and demand (SAD). A knowledge gap exists to reveal parameters that can indicate the relationship between the supply of GS services and the demand of public health needs. In this study, three primary indicators and 12 secondary indicators were selected to build a comprehensive evaluation system on SAD in the GSs of 14 parks along the “Luck Greenway” in Fuzhou. Parks were categorized and assessed for their ecological service functions, public health demands, and current public health needs. Remote evaluation and field survey were both used to collect data for quantifying functional supply and needs, respectively. It was found that factors, such as the fitness of sports service facilities, vegetation coverage, natural confluence, and mental health, impacted the comprehensive quality of supply services in urban parks. The unbalanced “multi-center” distribution of the coupled evaluation values revealed the mismatch in SAD. This study aimed to provide guidance on planning the health-promoting GS landscape by balancing SAD and maintaining ecological environment protection.