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  • Evaluation and influencing factors of rural territorial space security in loess hilly region: A case of Lintao County

    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.

  • 兰西城市群品质城市建设水平的时空变化及其影响因素研究

    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。

  • 甘南藏区游牧民定居工程满意度研究——以夏河县为例

    Subjects: Environmental Sciences, Resource Sciences >> Basic Disciplines of Environmental Science and Technology submitted time 2019-06-14 Cooperative journals: 《干旱区地理》

    Abstract:甘南藏区的游牧民定居工程既是减轻草场压力、恢复生态的重大生态工程,又是促进牧民脱离贫困、改善聚居环境的重大民生工程,其定居点满意度研究既具有城市与乡村人居环境研究的复合性特点,又具有特殊的地域性与民族性特点。在乡村振兴战略背景下,基于使用后评价视角,采用问卷调查法,运用模糊综合评价模型对夏河县游牧民定居点人居环境满意度进行评价研究,定量认识定居工程的良好表现及其存在的问题,对进一步优化生态定居工程策略具有重要的借鉴意义,结果表明:(1)夏河县牧民定居点人居环境满意度模糊综合评价结果为比较满意,各维度评价结果差异明显,呈现出“公共基础服务设施满意度>自然环境满意度>人文环境满意度>居住环境满意度”的递减特征。(2)夏河县定居牧民对定居点选址环境、空气质量与水草源配置的满意度较高,对定居工程未能解决草场退化问题与有悖于牧民崇山敬水的佛教环境伦理观的垃圾污染问题而对其不满意。(3)夏河县定居牧民对定居后的饮食结构与亲朋邻里感比较满意,对定居后多样化的家庭收入基本满意,而对定居环境的地方心理归属感及其与原有宗教信仰、生活习俗的融合不满意。(4)夏河县定居牧民对居住环境的房屋质量与朝向非常满意,对家庭宗教空间设置基本满意,对缺少个性化、地方化和乡村化的过于统一的色调风貌与不适应民族生活习惯的现代厨卫浴设置表现为不满意。(5)夏河县定居工程保障了定居牧民日常生活照明、供水、用能的水电供应条件,教育设施缩短了学龄孩子的就学距离而提高了入学率,公共活动场所增加了体育锻炼健身和传统习俗的发展空间,定居牧民对此支撑体系的大幅提升比较满意,而对成效因素复杂的地方政府提供的技术服务培训表现为不满意。(6)甘南藏区游牧民定居点满意度兼具乡村与城市人居环境满意度的复合性,对定居工程的不满意体现了游牧民对原有乡村人居环境的留恋与传统文化信仰的坚守,而对定居工程满意则体现了对城市人居环境建设的接受与认可。