Subjects: Geosciences >> Geography submitted time 2023-02-27 Cooperative journals: 《干旱区地理》
Abstract： Rural territorial space security is not only an important part of the national security system but also the focus of territorial space planning and an important basis for realizing ecological civilization construction and rural revitalization. In addition to regional, comprehensive, and complex characteristics, rural space security has typical dynamic characteristics. Rural spaces in different periods have faced security challenges with different development goals. It is a novel exploration of the microgeographic scale to study territorial space security based on rural space. Therefore, this study takes the loess hilly region as the research area. Based on remote sensing data and statistical data, the rural territorial space security of 323 administrative villages in 18 townships in Lintao County of Dingxi City, Gansu Province, China, was quantitatively evaluated using the entropy method and spatial autocorrelation analysis method, and with the help of geographic detectors, factors affecting rural territorial space security were identified. In addition, due to the geographical particularity of the selected study area, this study fully considers the regionality and localization of the indicators in constructing the relevant evaluation index system, which makes the evaluation results more scientific. The results are as follows: (1) The overall rural territorial space security is at a moderate level in Lintao, with the level of living space security> production space security>ecological space security. Villages with a high safety level (69.73% ) are primarily distributed in the irrigated agricultural areas of the Tao River Valley, whereas villages with a low safety level (30.27% ) are primarily distributed in the dry farming areas in the northern and eastern hilly and mountainous areas of the county. (2) The rural territorial space security in Lintao County has obvious spatial autocorrelation. The local spatial distribution is dominated by three types: high-high (18.52% ), low-high (0.62% ), and low-low (9.26% ). The spatial correlation between villages in the county is mainly positive correlation type and exhibits obvious agglomeration and distribution characteristics. The negative correlation types of village and town units are less distributed and more scattered, indicating their weaker spatial heterogeneity. (3) Topography, population size, government investment, and locational connections have a significant impact on the level of rural territorial space security, and the degree of impact on different townships varies. Based on these findings, subsequent research can focus on the long-term evolution process of rural territorial space security and its driving mechanism and pay attention to the understanding and change of rural territorial space security by different subjects (countries and villagers) in different periods. In the next step, attention should also be paid to the implementation and assessment system of rural territorial space security construction, and explore the establishment of a more rational and fair territorial space security evaluation system to more effectively promote the management practice of territorial space and provide services for the sustainable development of territorial space.
Subjects: Geosciences >> Geography submitted time 2022-02-11 Cooperative journals: 《干旱区地理》
Abstract：品质城市建设是响应生态文明、高质量发展与新型城镇化战略的重要内容。以兰西城市群30个市（县）为研究对象，以城市建成区为基本空间单元，从用地、经济、社会、生态、环保、交通、市政和形象品质8个维度进行了兰西城市群品质城市建设水平评价研究。结果表明：（1）在时序变化上，各城市的综合品质整体持续提升，品质建设处于相对中低水平；各城市的分维度品质变化复杂，存在稳定型、提升型、先降后升型、先升后降型、混合型等多种变化类型。（2）各城市综合品质在空间上呈现由双核向多核共存格局转变的特征；分维度品质差异大，分布不均衡。（3）各城市分维度品质的贡献差异显著，特色品质城市逐步形成，基本形成单维度、双维度和多维度主导型3 种类型。（4）品质城市的影响因素较多，其影响力为建成区规模>人口规模>人均GDP>城镇化率> 对外交通>地形起伏度，城市规模是兰西城市群品质城市建设的主要影响因素，城镇化率和人均 GDP为次要影响因素，自然因素影响最弱，但属于基础性作用。
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