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The Chinese government attempts to coordinate the spatial planning of various departments through multiple-plan coordination to achieve more efficient land use and promote the orderly urban development. Based on Bryson's cross-sector collaboration theory, this study establishes a cross-sector collaboration framework, which consists of seven parts: system context, drivers, structure, processes, endemic conflicts and constraints, accountabilities and outcomes, and impacts. With Xiamen as a case study, the implementation process of Xiamen's multiple-plan coordination is analyzed through this framework, and then the cross-sector collaboration process of multiple-plan coordination and the important influencing factors are clarified. [ABSTRACT FROM AUTHOR]

Whether the new type of urbanization implemented in China in the past decade has been effective in regulating urbanization and balancing human development and environmental protection remains to be verified. Therefore, this study develops a framework for assessing population-urbanization–ecological environment interactions by combining the coupling coordination degree model and the decoupling index. Firstly, the proposed framework establishes an indicator system of population, economy, society, space, environmental pressure, ecological governance, ecological status, and ecological services based on two sets of national census data; secondly, this study combines the coupling coordination degree model and decoupling index to comprehensively understand the coupling coordination relationship and the decoupling relationship of the population–urbanization–ecological environment across time and space. Overall, this study contributes to a deepened understanding of coupled population–urbanization–ecological environment interactions and provides a scientific basis for effective guidance on urban–rural management and the balance between human development and environmental protection. [ABSTRACT FROM AUTHOR]

The vast majority of rural settlements in Western China are located in the ecologically sensitive and diverse mountainous environment, which also experienced rapid changes in policy and institutional interventions over the past 40 years. At present, in the transitional period of "post-poverty alleviation," they have more opportunities to re-integrate themselves into the large regional development. However, there is a lack of systematic evaluation and cognition of the related functions of the spatial structure between the settlements at the regional village scale and town scale. Therefore, in this paper, the theory of complex adaptive system and its analytical NK model were introduced, and a quantitative measurement framework was constructed for the adaptability level of this kind of rural settlement spatial structure organization so as to explore the effective path for its global optimization. Taking Xinglong Town of Chongqing in the western mountainous area as an example, it was found from the analysis that (1) the number of villages at a high comprehensive adaptation level has increased over time, which has an obvious positive correlation with the construction of transportation network, and a structural adsorption effect. (2) The spatial structure of the rural settlement system in the region has changed from weak industrial nodes – traffic single branch connection – public service decentralized coverage in 2010 to the organizational adaptation characteristics of stable industrial agglomeration – traffic expansion and extension – public service continuous coverage in 2019. (3) The spatial elements related to industry and public service in each village have an increasingly significant impact on the reconstruction and differentiation of its spatial structure. Finally, based on the changing trend of adaptability level and the correlation characteristics of regional space, in this paper, the spatial structure optimization strategy of Xinglong Town is put forward, which provides a reference basis for the coordinated development of the town and village space under the township-level planning in the western region. [ABSTRACT FROM AUTHOR]