Influenced by historical background, regional economic development, and the frequent occurrence of armed conflict, the human–earth relationship in the Central and Southern Peninsula, which is located in a “fragmented zone”, is characteristic of the region. The Indochina Peninsula has now become an area of interest for the study of spatial changes in production–living–ecological spaces (PLES). Taking the Indochina Peninsula as the study area, this paper explores the evolution of the spatiotemporal patterns of PLES and its driving mechanism in the Indochina Peninsula, from 2010 to 2020, based on a grid scale. Methods such as the land-use transition matrix, land-use dynamics index, and geographically and temporally weighted regression (GTWR) were used in our model, which will provide the basic data and reference for sustainable development planning across the Indochina Peninsula. Our results show that, from 2010 to 2020, ecological space dominated the PLES pattern on the Indochina Peninsula, but its area gradually decreased, accompanied by a sharp increase in the areas of productive and living spaces. The area of PLES interconversion on the Indochina Peninsula in 2010–2020 was 212,818.70 km², and the intertransfer of production and ecological spaces was distributed in a networklike manner throughout the Indochina Peninsula, while the transfer of living space was distributed in a pointlike manner. The migration path of the center of gravity of PLES on the Indochina Peninsula demonstrated a significant directional difference, and the direction and extent of the standard deviation ellipse distribution of the ecological space was similar to that of the production space. The PLES’s pattern evolution was affected by the degree of multiple factors, with a significant spatial and temporal heterogeneity. The positive and negative feedback effects of the factors were distributed in different areas and in different transfer directions.

During the period of rapid social and economic development spanning four decades of reform and opening up, China has witnessed significant transformations in its patterns of production, living, and ecology. Notably, there has been a noticeable escalation in the conflict between the spatial requirements for agricultural production and those for residential and ecological purposes. In order to address this issue, the government has enacted a set of measures aimed at safeguarding arable land. This study utilizes land use data from 2000, 2010, and 2020 to establish a spatial dataset representing China’s production–living–ecological space (PLES). The intensity analysis approach is employed to examine the features of changes in China’s PLES over the previous two decades. The findings of this study indicate that agricultural production space is mostly concentrated in the northeastern region and the plains of the Yangtze and Yellow River Basins. This distribution pattern has undergone a notable transformation characterized by a period of decline followed by subsequent growth. Simultaneously, the ecological space is primarily dispersed in the northwestern region and the Tibetan Plateau. South of the Hu Huanyong Line, there is a greater proportion of rural living area, urban living space, and industrial production space. Between the years 2000 and 2020, there was an observed increase in the intensity of PLES. This rising trend was primarily characterized by quantitative changes and exchange changes within each type of space. In contrast, between 2010 and 2020, there was a notable increase in the frequency and intensity of spatial transitions, particularly in relation to agricultural production space. Nevertheless, the transition to agricultural production space mostly entails ecological implications, characterized by a decline in cultivation quality but an improvement in environmental advantages. The policy of protecting arable land has a significant influence on the dynamics of the production, living, and ecological domains. To achieve the objective of maintaining the “trinity” of arable land quantity, quality, and ecology, it is imperative for the government to establish a comprehensive system for spatial category conversion. This will ensure the coordinated development of PLES. This study elucidates the constituents of intensity analysis and its analytical concepts, which can be employed to identify alterations in spatial patterns in different areas. It offers scholarly references for the subsequent execution of policies aimed at safeguarding arable land and the development of sustainable land management strategies. Consequently, this study holds substantial importance for advancing economic and social development and fostering sustainable growth.

Influenced by historical background, regional economic development, and the frequent occurrence of armed conflict, the human–earth relationship in the Central and Southern Peninsula, which is located in a "fragmented zone", is characteristic of the region. The Indochina Peninsula has now become an area of interest for the study of spatial changes in production–living–ecological spaces (PLES). Taking the Indochina Peninsula as the study area, this paper explores the evolution of the spatio-temporal patterns of PLES and its driving mechanism in the Central and Southern Peninsula, from 2010 to 2020, based on the grid scale. Methods such as the land-use transition matrix, land-use dynamics index, and Geographically and Temporally Weighted Regression (GTWR) were used in our model. Our results show that, from 2010 to 2020, ecological space dominated the PLES pattern on the Indochina Peninsula but its area gradually decreased, accompanied by a sharp increase in the areas of productive and living spaces. The area of PLES interconversion on the Indochina Peninsula in 2010–2020 was 212818.70 km2, and it is characterized by the conversion of ecological space into productive space, as well as the interconversion of woodland ecological and grassland ecological spaces. In addition, the intertransfer of production and ecological spaces was distributed in a network-like manner throughout the Indochina Peninsula, while the transfer of living space was distributed in a point-like manner. The migration path of the center of gravity of PLES on the In-dochina Peninsula demonstrates a significant directional difference. The PLES’s pattern evolution was affected by the degree of multiple factors, with a significant spatial and temporal heterogeneity. The positive and negative feedback effects of the factors were distributed in different areas and in different transfer directions.