## 6 Conclusions  
This research has constructed a multi-dimensional environment evaluation system based on the satisfaction of local residents with the application of an analytic hierarchy process and explored the affecting mechanism of space reconstruction on the multi-dimensional environment driven by rural tourism in a relocation village and sightseeing in a settlement symbiosis village. Finally, based on the theoretical perspective of the reproduction of the space, a comprehensive optimization path of multi-dimensional environment was proposed for the two types of rural settlements. The following conclusions are reached. 1. From the perspective of residents' satisfaction, \"sightseeing and settlement symbiosis village\" develops better multi-dimensional environments than \"relocation village\", which indicates a more reasonable reproduction process of the rural space and a more sustainable development of rural tourism. 2. Ecological environment is the most significant improvement for both \"sightseeing and settlement symbiosis village\" and \"relocation village\" in the spatial reproduction process driven by tourism. The rural tourism and the ecological environment protection in the two case areas share a mutually reinforcing relationship. 3. Management environment and economic environment are the bottlenecks of the multi-dimensional environments. Specifically, the shortcoming of the \"relocation village\" is the livelihood security of the residents after land transfer, and the shortcomings of the \"sightseeing and settlement symbiosis village\" is the policy support. 4. The \"sightseeing and settlement symbiosis village\" retains more rural elements than the \"relocation village\" and is more attractive to visitors who has interest in rural tourism. This gives more chances for the villagers who live in \"sightseeing and settlement symbiosis village\". Their income mainly comes from agriculture and rural tourism, thus, the tourism income source for \"sightseeing and settlement symbiosis village\" is more extensive than that of \"relocation village\". 5. In order to optimize the multi-dimensional environment, relocation villages should construct the space that meets the actual needs of residents, broaden the participation channels of residents, and improve the voice of the village collectivity, improve the utilization rate of space, and increase residents' multi-dimensional sense of belonging. Sightseeing and settlement symbiosis villages should resolve the conflicts between sightseeing and residential demands, exploit the rural characteristics and enhance the balanced develop  
Figure 13: The optimization path of multi-dimensional environment in Doushan Village. ment of sightseeing and settlement symbiosis village, and reconstruct the neighborhood network. This research can shed light on the sustainable development of the \"relocation village\" and \"sightseeing and settlement symbiosis village\" in rural tourism. However, only two representative types of villages in rural tourism are subjected to investigation due to the limitation of the research subject, which may limit the universality of the conclusion. Therefore, in the future, more types of villages in rural tourism will be further explored and compared to enrich the research of optimization approaches of the settlements in rural tourism. On that basis, sustainable rural tourism, and its advantages on social and economic prosperity of rural settlements can be promoted. Conceptualization, Y.C. and D.Z. ; methodology, Y.C. ; software, Q.Z. and W.Z. ; validation, S.F. ; formal analysis, Y.C., Q.Z. and D.Z. ; investigation, Y.C., Q.Z. and D.Z. ; resources, Y.C. ; data curation, Y.C., Q.Z. and D.Z. ; writing--original draft preparation, Y.C., Q.Z. and D.Z. ; writing--review and editing, S.F. and W.Z. ; visualization, Y.C. and Q.Z. ; supervision, D.Z. ; project administration, Y.C. and D.Z. ; funding acquisition, Y.C. All authors have read and agreed to the published version of the manuscript. Not applicable.