Search

Understanding the evolution of rural landscapes in metropolises during rapid urbanization is crucial for formulating policies to protect the rural ecological environment. In this study, remote sensing and geographical information system data, as well as applied landscape index analysis, are used to examine the spatiotemporal evolution of rural landscape patterns in the Beijing-Tianjin region of China, which has experienced rapid urbanization. The relationships between land use/land cover changes and changes in rural landscape patterns are explored. The results revealed significant spatial differences in the rural landscapes in the Beijing-Tianjin region; farmland and forestland were the main types of landscapes, creating a "mountain-field-sea" natural landscape pattern. The conversion of rural landscapes in the Beijing-Tianjin region involved mainly the conversion of farmland to urban areas, with few exchanges between other landscape types. The urban areas in the Beijing-Tianjin region increased by 3% per decade; farmland decreased at the same rate. Additionally, the rural landscape patterns in the Beijing-Tianjin region were dominated by fragmentation, dispersion, and heterogeneity and moved from complex to regular. Water bodies displayed the most fragmented natural landscape; their number of patches increased by 36%, though their network characteristics were maintained. Forestland was the most concentrated natural landscape. In this study, theoretical support and a scientific reference for the optimization of rural landscape patterns and the improvement in rural living environments in rapidly urbanizing areas are provided. [ABSTRACT FROM AUTHOR]

The regeneration of stock land has gradually occupied the mainstream of China's urban development. In order to cope with the inherent complexity of land property rights and transaction costs in stock land regeneration, relevant urban policies need to play a necessary guiding role. Taking the downtown area of Tianjin as an example, this paper discusses the interaction between spatial regeneration and policy change of stock industrial land. Firstly, a spatial database is constructed through multi-party research to quantitatively describe the spatial and temporal evolution of the stock industrial land since 1995. Secondly, the relevant urban policies since 1979 are sorted out, and the characteristics of policy changes are evaluated and analyzed. Finally, through comparative studies, it is confirmed that the regeneration rate of stock industrial land is affected by policy change, and the speed of policy impact is subject to the policies' inherent characteristics, namely, "guiding policy" or "regulating policy." [ABSTRACT FROM AUTHOR]