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Provincial-level natural resources survey and monitoring play a crucial role in the national natural resources survey and monitoring system. Constructing a provincial-level system is essential for effectively implementing the national survey and monitoring work. However, the construction of such a system in Guangdong Province, a typical tropical and subtropical coastal region with diverse natural resources and distinctive geographical characteristics, presents significant challenges. This study focuses on addressing several problems encountered in Guangdong Province, including the lack of optical image data due to the region's cloudy and rainy climate, fragmented monitoring patches resulting from complex terrain and landforms, rapid changes in the surface caused by high-intensity human activities, and the difficulty in managing a wide range of monitoring objects. By clarifying the goals of natural resources survey and monitoring, this study systematically reviews the status and practical needs of a provincial-level survey and monitoring work and summarizes the key issues in the construction of the survey and monitoring system. This study proposes an overall construction plan for a provincial-level system that includes establishing a unified basic platform, which aids in implementing a fast and coordinated monitoring mode, developing flexible and efficient application services, and strengthening intensive and refined support environments. It also analyzes critical challenges, such as organizational model restructuring, accurate object recognition, and technological integration. Finally, this study presents a path to achieve the provincial-level natural resources survey and monitoring, focusing on object-based businesses, information implementation, technological intelligence, targeted evaluation, and service knowledge. Regarding investigation targets, this study emphasizes adopting a "business-oriented" approach, enhancing the alignment of investigation and monitoring with precise business strategies and facilitating bidirectional feedback. Regarding organizational implementation, this study emphasizes strengthening support through "information technology," establishing provincial-level coordination and a municipal and county-level division of labor model, commonly referred to as the "general-subordinate-general" organizational structure. Regarding monitoring technology, this study emphasizes adopting an "intelligence-led" approach; it is primarily centering on pivotal technological research related to collaborative perception, intelligent processing, integrated management, and intelligent services. Regarding analysis and evaluation, this study emphasizes a "target-oriented" approach, centered around supporting economic and social development and optimizing natural resource management through comprehensive analysis and evaluation. Regarding application services, this study emphasizes delivering "knowledge-based" services and exploring the development of a model that encompasses the knowledge ontology of natural resource investigation and monitoring. This study promotes the orderly construction of a survey and monitoring system in Guangdong Province, provides a scientific basis for provincial-level natural resource surveys and monitoring work and serves as a reference for the construction of survey and monitoring systems in other regions.

Guangdong Province is actively building a national marine ecological civilization construction demonstration area, and it is crucial to conduct research and assessment on the resources and environmental carrying capacity of the coastal zones. Under the guidance of the "double evaluation" of the territorial space planning, this study takes the coastal areas of Guangdong Province, namely the 45 coastal counties and the sea areas within the scope of the marine functional areas of Guangdong Province as the research scope It proceeded from the functional orientation of ecological protection, agricultural production, and urban construction to construct the evaluation index system of the resources and environmental carrying capacity of the coastal zone of Guangdong Province. In 2019, based on the evaluation index system, a comprehensive evaluation of the resources and environmental carrying capacity of the coastal zone of Guangdong Province was performed using integrate and integrate multi-scale spatial data, remote sensing, geographic information system, and other technical means and its resource and environmental carrying status were quantitatively revealed. The results showed that approximately 84% of the land area in the coastal zone and more than 1/2 of the sea areas (cities, districts) have overall good comprehensive bearing status of the resources and environmental carrying capacity, which is mainly characterized by loadability. The scale of human socio-economic activities in most regions is within the range of the resources and environmental carrying capacity; however, in some regions it exceeds the threshold, particularly in regions distributed in the Pearl River Delta. Specifically, under the guidance of the ecological protection function, 60.05% of the land area and 14 counties (cities, districts) of the sea area are in a loadable state, mainly distributed in the east and west wings of the urban agglomeration in the Greater Bay Area of Guangdong, Hong Kong, and Macao. Under the guidance of the agricultural production function, the carrying capacity of land agriculture is relatively severe, mainly critical overload, while the number of counties (cities, districts) that can be carried by sea agricultural production is relatively small. Compared with the functions of ecological protection and agricultural production, the area of the loadable area under the urban construction function is the highest, with 86.93% of the land area and 29 counties (cities, districts) of the sea area in the loadable state, and only 3.01% of the land area and 10 counties (cities, districts) of the sea area in the overloaded state. Guangdong Province is a major province of marine economy. As an important place for economic activities in the coastal zone, the ocean is a strategic place to promote the high-quality development of Guangdong Province.. Under the mode of sustainable development, there is still a large scope for the development of resources and environmental carrying capacity in the coastal zone of Guangdong Province. On the premise of ensuring the stability of resources and environment, the loadable area can be further developed and utilized selectively, the allocation of resource elements can be optimized, and a new management mode of high-level protection and efficient utilization of resources can be built. Thus the research results provide a basis for the compilation of territorial space planning and the optimization of territorial space development and protection pattern in Guangdong Province.

Since the reform and opening up, China has achieved great progress in industrialization and urbanization. However, due to the long-term implementation of the economic development model of "emphasizing cities over township" and the urban-rural dual system, the gap between urban and rural development is constantly increasing, and the problems of land resource allocation and contradiction between man and land in rural areas have gradually emerged. Rural homestead is the main place where farmers live, with unique land use characteristics. The information such as the structure and utilization status of houses on it can clearly reflect the local rural economic situation and homestead problems. Therefore, understanding the characteristics and differences of rural homestead housing is of great significance to understand and grasp the situation and problems of rural development and promote the implementation of rural revitalization strategy. Based on the rural cadastral survey data of Guangdong Province and combined with GIS spatial analysis method, this paper analyzes the characteristics of rural homestead housing. The results show that: (1) The rural housing in the study area is relatively low, mainly with one floor, supplemented by two and three floors, mainly brick and mixed structure, supplemented by concrete structure, and there is a certain correlation between the number of floors and the spatial distribution of the structure. Among them, the proportions of one storey house, brick structure and mixed structure house are 59.42%, 37.71% and 42.60% respectively. (2) There are obvious regional differences in the number of floors and structural spatial distribution of rural homestead housing in the study area. Low-rise, brick and mixed structure houses are mainly distributed in remote areas such as northern and western Guangdong, and high-rise and concrete structure houses are mostly concentrated in the Pearl River Delta. (3) The vacancy and idleness of rural homestead housing in the study area are common. The average vacancy rate and idle rate are 6.75% and 5.66% respectively, and the rate of one househould with multiple houses reaches 23.88%. The phenomenon of rural hollowing is obvious, and 50.87% of the villages in districts and counties are above the moderate hollowing, mainly distributed in the fringe area of the Pearl River Delta and Meizhou in northern Guangdong. At the same time, there is a certain phenomenon that the average household homestead area exceeds the standard. (4) The characteristics of rural housing utilization in Guangdong Province are affected by factors such as policies, economy, transportation, physical geographical condition and local customs. And the influencing factors in different regions are different, such as the special folk customs have a greater impact on rural housing in eastern Guangdong, and the economic situations and urban siphon have a greater impact on the characteristics of rural housing in the edge of the Pearl River Delta. There are obvious spatial differences in the utilization of rural homestead housing in Guangdong Province, and there are many idle homestead resources. There is great potential for the optimization and adjustment of rural construction land for rural revitalization.

Gelugpa is the most influential extant religious sect of Tibetan Buddhism, which is the spiritual prop for Tibetans, with thousands of monasteries and followers in Tibetan areas of China. Studies on the spatial diffusion processes of Gelugpa can not only reveal its historical geographical development but also lay the foundation for anticipating its future development trend. However, existing studies on Gelugpa lack geographical perspective, making it difficult to explore the spatial characteristics. Furthermore, the prevailing macro-perspective overlooks spatiotemporal heterogeneity in diffusion processes. Therefore, taking monastery as the carrier, this study establishes a multi-level diffusion model to reconstruct the diffusion networks of Gelugpa monasteries, as well as a framework to explore the detailed features in the spatial diffusion processes of Gelugpa in Tibetan areas of China based on a geodatabase of Gelugpa monastery. The results show that the multi-level diffusion model has a considerable applicability in the reconstruction of the diffusion networks of Gelugpa monasteries. Gelugpa monasteries in the Three Tibetan Inhabited Areas present disparate spatial diffusion processes with diverse diffusion bases, speeds, stages, as well as diffusion regions and centers. A powerful single-center diffusion-centered Gandan Monastery was rapidly formed in U-Tsang. Kham experienced a slower and more varied spatial diffusion process with multiple diffusion systems far apart from each other. The spatial diffusion process of Amdo was the most complex, with the highest diffusion intensity. Amdo possessed the most influential diffusion centers, with different diffusion shapes and diffusion ranges crossing and overlapping with each other. Multiple natural and human factors may contribute to the formation of Gelugpa monasteries. This study contributes to the understanding of the geography of Gelugpa and provides reference to studies on religion diffusion. [ABSTRACT FROM AUTHOR]

Quantum‐dot light‐emitting diodes (QLEDs) are proposed as one of the most promising candidates for next‐generation displays, but their commercial application is seriously limited due to the poor performance of blue QLEDs (B‐QLEDs). Herein, this work uses Ti3C2Tx nanosheets to tune the work function (WF) of ZnMgO and to engineer the quantum dot (QD)/electron transport layer (ETL) interface. The B‐QLEDs with ZnMgO‐Ti3C2Tx hybrid ETL exhibit a maximum EQE of 15.81% and a remarkable T50 operation lifetime of 3284 h at 100 cd m−2. In addition to that, ultraviolet photoemission spectroscopy and density functional theory calculations both confirm that the addition of Ti3C2Tx to ZnMgO can effectively tune the ZnMgO's work function, further give rise to the reduction of QD/ETL energy barrier, which finally results in the alleviation of charge accumulation at the QD/ETL interface. The findings of interface engineering by Ti3C2Tx not only provide a promising strategy for the application of 2D materials in optoelectronic devices, but also pave the way to construct high‐performance light‐emitting diodes. [ABSTRACT FROM AUTHOR]