Changzhou is a city situated in the eastern region of China and serves as a pivotal juncture of the UNESCO World Cultural Heritage site, the Grand Canal of China. The study employed spatial syntax foreground and background network analysis to examine the cultural landscape characteristics and determinants of the urban spatial context in Changzhou, influenced by the Grand Canal, with a focus on rivers, streets, and social networks. The findings revealed that: (1) Foreground network construction: serving as the fundamental framework of urban space, street and river networks exhibited distinct functionalities in terms of structural configuration, functional organization, and potential impact. (2) Background network construction: social networks identified through spatial structure recognition demonstrated sustainable characteristics, as their layout was not directly correlated to the foreground network but contributed to the identification of the identity and the traits of social networks. (3) Dual network adaptability to contemporary urban space: it was imperative to redefine the role of river networks to augment their potential impact in shaping scenic leisure systems. This study provides novel insights into preserving and acknowledging the urban spatial context while offering valuable references for safeguarding regional cultural landscapes.

Sustainable community development is a prerequisite for national parks’ coordinated ecological and socio-economic development. This study analyzes the sustainable development challenges communities face in national parks, including the marginalization of indigenous peoples, the passive role of stakeholders, and insufficient protection of community interests. Using a grounded theory approach and a mixed research method (semi-structured interviews and questionnaires), the development constraints of community residents in Hainan Tropical Rainforest National Park in China were systematically studied. The research framework identified five core dimensions (economic, social, ecological, institutional, and cultural) and eight major categories that characterize the community’s development dilemma. The analysis revealed systemic problems, including differences in income distribution, limited access to resources, gaps in policy implementation, and ambiguous stakeholder roles. A new framework for coordinated development of national park communities was constructed through multidimensional analysis, and coordinated development strategies were proposed from the five dimensions of economy, society, ecology, institution, and culture. These findings contribute to the theoretical underpinnings of national park governance in China and offer a transferable methodological system for managing nature reserves and national parks worldwide, particularly in achieving a balance between ecological protection and community development needs.

Identifying the most suitable areas for developing forest health care in Hainan Tropical Rainforest National Park (HTRNP) is of great significance to its ecological protection and development. This study selected 107 health care points in HTRNP as research objects to monitor environmental factors, a forest health care evaluation system was constructed based on those environmental factors, and the health care resource points were rated. Kernel density analysis and buffer zone analysis were used to analyze other factors such as roads, villages, and water inside and outside of the national park. Multi-factor superposition analysis of the first-level health care points with other impact factors was performed to obtain a map of the distribution of health care potential in different sub-areas of HTRNP. A total of 67 first-level health care points were selected through the forest health care evaluation system. Through superposition analysis, it was found that, among the seven sub-areas of HTRNP, there are 42 first-level health care points within the 5 km buffer zone for roads and waterways, including 11 in Diaoluo Mountain, 10 in Limu Mountain, 6 in Yingge Ridge, 5 in Jianfeng Ridge, 4 in Bawang Ridge, 4 in Maorui, and 2 in Wuzhi Mountain. There are nine first-level health care points located in the area with a village kernel density greater than 3000, including three in Diaoluo Mountain, two in Limu Mountain, two in Yingge Ridge, and two in Maorui. At the same time, to meet the above two conditions of the first level of health care points, there are six, including three in Diaoluo Mountain, two in Maorui, and one in Yingge Ridge. Through the results analysis, Diaoluo Mountain is considered to be the area with the greatest potential for developing forest health care in HTRNP. In addition, the comprehensive performance of Limu Mountain is second only to Diaoluo Mountain, and Limu Mountain, Maorui, and Yingge Ridge are listed as areas with great potential for developing forest health care.

Linear cultural heritage is associated with the morphology of adjacent rural settlements, but its spatial effects remain insufficiently quantified. Using China’s Grand Canal as a case study, this study examined the non-linear relationship between Canal proximity and the morphology of adjacent traditional villages. We quantified the morphology of 42 villages using five landscape-pattern indices and applied a Continuous Piecewise Linear model to identify distance thresholds. Six robustness checks were used to evaluate the results. FRACT, AI, and DIVISION showed a consistent breakpoint at approximately 3.5 km. Within this zone, villages closer to the Canal had more regular boundaries, higher aggregation, and lower fragmentation. COHESION and LSI showed less distinct breakpoints at 6.5 and 15.5 km, respectively, indicating multi-scale spatial responses. Village morphology was also associated with the latitudinal gradient. These findings support the delineation of heritage influence zones and spatially differentiated conservation strategies for linear cultural heritage.