Abstract:The optimal layout of Production-Living-Ecological Space depends on the understanding of the territorial functional effect caused by the change of Production-Living-Ecological Space. The analysis of the social values for ecosystem services provides a way to evaluate this effect. Taking Qionghai National Wetland Park as an example, this research employed a mixed method of participatory mapping and semi-structured interview to investigate the change types of social values for ecosystem services perceived by local residents, with 393 sets of effective questionnaires and paper maps generated, extracted 1830 geospatial points. Through qualitatively spatial analysis and other methods, this paper studied the impact of the Production-Living-Ecological Space change on the social values for ecosystem services since the construction of the Wetland Park, and discussion on the scale characteristics of territorial functions and their change trends and effects. Results show that:(1) since the construction of the Wetland Park, the pattern of Production-Living-Ecological space has changed dramatically, which was mainly manifested in the transformation of production space into ecological space and living space. The former occupied the leading position and distributed around Qionghai wetland in a belt shape, while the latter was distributed around villages in a patch shape. (2) Using Nvivo11 software for qualitative analysis, two kinds of outward social values for ecosystem services included ecological environment value and aesthetic value were linked with regionally territorial functions, and four kinds of inward social values for ecosystem services included life security value, spiritual and emotional value, economic value and agricultural production value were linked with local territorial functions. It was found that the regional territorial functions gained significantly in the change of Production-Living-Ecological space in suburban protected areas, while the locally territorial functions showed the complex change characteristics of interwoven gain and derogation. There are multiple relationships of synergies and conflicts between territorial functions of different scales. (3) The research pointed out that in the process of regional Production-Living-Ecological space allocation, we should not only pay attention to the horizontally comprehensive spatial equilibrium of territorial functions among regions, but also pay attention to the vertically comprehensive balance of territorial functions at different scales, so as to realize the optimization of regional benefits. Finally, under the dual effects of the externally structural forces and the internal adaptability of the community, the suburban protected areas underwent territorial functions transformation. The qualitative spatial evaluation based on community participation provides a way to understand the process, effect and control strategy of territorial functions transformation.