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Identification of Ecological Space in Nanjing City Based on Forest Ecological Service Functions and Ecological Sensitivity
摘要: The effective identification and protection of ecological spaces is a fundamental cornerstone for achieving sustainable development and promoting a green society. It plays an indispensable role in ecological protection, resource management, and environmental governance, and is of great significance for the sustainable development of human society. Rapid and scientific identification of ecological spaces provides a scientific foundation for regional ecological protection planning. In this study, we used survey data from the planning and design of forest resources alongside 2017 Landsat 8 OLI remote sensing image to comprehensively analyze forest ecological service functions and ecological sensitivity using the layer-cake model to identify ecological spaces in Nanjing City. The results show that the area of extremely important forest ecological service function zones in Nanjing was 288.57 km², accounting for 3.47% of the total area of Nanjing. The area of highly sensitive zones in Nanjing was 464.39 km², accounting for 7.05%. Considering both forest ecological service functions and sensitivity, the area of core ecological spaces in Nanjing was 692.86 km², accounting for 10.52% of the total area, and the main land use types were woodland and waters. The area of transitional ecological space in Nanjing was the largest, reaching 3 150.29 km², accounting for 47.83% of Nanjing’s total area. This study provides valuable insights for optimizing the layout of ecological spaces and serves as a reference for related research efforts.
关键词: Ecological service functions; Ecological sensitivity; Ecological space; Layer-cake model; Nanjing City
Integration Characteristics of Slow Blue-Green Space Based on Ecological Livability: A Case Study of the Central Urban Area of Wuhan
摘要: Urban planning often faces issues of spatial separation between blue and green spaces, as well as the lack of integration in slow traffic networks. The development and shaping of urban slow, blue, and green spaces often proceed along separate paths. However, building an ecological and livable city requires the integrated development of slow, blue, and green spaces. Taking the central urban area of Wuhan as a case study, this research uses ArcGIS visualization, walking accessibility analysis, and landscape pattern index analysis methods. By overlapping slow traffic spaces with blue and green spaces, the study explores the distribution of slow, blue, and green spaces and the integration characteristics of slow + blue-green spaces, categorizing them based on walking time and spatial aggregation. The results show: 1) In the central urban area of Wuhan, blue spaces are predominant in the Yangtze River basin, the Han River-Sha Lake-East Lake-South Lake, Yangchun Lake-East Lake-South Lake-Yezhi Lake, and Longyang Lake-Moshui Lake directions, with clear dominant patches, while other areas show average performance; 2) Green spaces have good patch dominance and connectivity along the Qingshan Park-East Lake Greenway-Moshan-Ma'anshan Forest Park; 3) The integration of blue and green spaces is best along the Yangtze River, East Lake, and South Lake; 4) Areas such as Sha Lake Park in Wuchang District, East Lake Scenic Area in Hongshan District, the South Lake-Yezhi Lake corridor, Moshui Lake and Longyang Lake in Hanyang District, and the northern and southern parts of the Yangtze River are characterized by better integration of slow blue-green spaces. Through the overlay analysis of walking accessibility and landscape pattern indices of blue-green spaces, the study significantly reflects the integration characteristics of slow blue-green spaces in Wuhan's central urban area. This research aims to provide references for the planning and design of urban slow blue-green spaces and the construction of livable and ecological cities, offering practical guidance for creating a healthy urban ecological living environment and for urban ecosystem restoration and management.
关键词: Ecological livability; Slow blue-green space; Walking accessibility; Landscape pattern index; Spatial integration
Status Quo of College Students' Career Indecision from the Perspective of Planned Happenstance
摘要: This study explores the application of the planned happenstance theory in college students' career planning and its impact on career indecision. Traditional career theories emphasize self-awareness and the demands of the work environment but overlook the influence of serendipitous events on individual career development. In contrast, the planned happenstance theory highlights individuals' receptivity and ability to leverage unexpected events, viewing them as potential turning points in career progression. Research indicates that students with higher levels of planned happenstance skills exhibit greater career decision-making competence and lower levels of career indecision. Through a survey of 312 students from university A in city X, this paper analyzes the current state of career indecision among the student population and proposes strategies and recommendations, including maintaining a positive mindset, establishing a sound career planning perspective, enhancing planned happenstance skills, and improving career decision self-efficacy. Additionally, the study finds that the revised Strategies for Coping with Career Indecision Questionnaire (SCCI) demonstrates strong reliability and validity among Chinese college students, making it suitable for localized research.
关键词: Planned happenstance; Career indecision; Career planning; College students; Career decision-making; Serendipitous events; Strategies for Coping with Career Indecision Questionnaire (SCCI)
An Empirical Study on the Relationship between Physical Exercise and Social Anxiety among Junior High School Students: A Case Study of County Y, City L
摘要: As mental health issues among adolescents receive increasing attention, the impact of physical exercise on mental health has become prominent. In this paper, junior high school students in Luoding County and Yunan County of Yunfu are taken as participants. It employs a convenient sampling method to distribute questionnaires, utilizes relevant scales for measurement, and analyzes the data with the assistance of SPSS 26.0. The results indicate a significantly negative correlation between physical exercise and social anxiety. Overall, junior high school students in this region engage in relatively weak physical exercise, and their social anxiety is at a moderate level, with female students being more prone to anxiety. Left-behind children exhibit higher levels of social anxiety compared to non-left-behind children. There are notable differences among group characteristics, with social and cultural factors and physiological factors influencing gender differences, and the lack of family support affecting the social anxiety of left-behind children. This study provides a basis for intervening in psychological anxiety and other issues. It is suggested deepening the sports collaborative education mechanism, paying attention to the cultivation of social and emotional abilities of left-behind children, and using physical exercise to promote the development of students' social adaptability.
关键词: Physical exercise; Social anxiety; Gender difference