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Path for Enhancing the Climate Resilience of the Beijing-Hangzhou Grand Canal Utilizing the SEE Model and Scenario Simulation
摘要: In the context of global climate change, the increasing frequency of extreme weather events presents significant challenges to urban water systems. This study focuses on the Beijing section of the Beijing-Hangzhou Grand Canal, introduces the SEE model, and develops an integrated “comprehensive water environment simulation model” to systematically examine the path for enhancing its climate resilience. Through the coupling of multiple models (MIKE 11, MIKE URBAN, MIKE 21) and scenario simulations, this study analyzes the response mechanisms of various governance strategies under extreme climate conditions. The research proposes four specific measures to enhance resilience: dual-scenario simulation of climate and governance, identification and reinforcement of weak points in resilience, parametric modeling of ecological restoration interventions, and the development of a “digital twin canal system”. The research findings indicate that the system integration of the SEE model substantially improves the adaptability, endurance, and recovery capacity of canals in response to climate shocks, including heavy rainfall and drought. This provides a scientific foundation and a practical path for achieving long-term resilience and sustainable development of urban water systems.
关键词: Climate resilience, SEE Model, Water environment simulation, The Beijing-Hangzhou Grand Canal
Construction of a Linear Engineering Visual Landscape Interference Model for the Buffer Zone of the Libo Heritage Site Based on the AHP-Fuzzy Comprehensive Evaluation Method
摘要: The buffer zone of a World Natural Heritage Site constitutes a critical element of the heritage site protection system. It functions not only as an ecological security barrier but also significantly influences the visual integrity and aesthetic value of the core area’s landscape. Given the rapid development of transportation infrastructure, particularly the growing number of high-speed railways traversing ecologically sensitive regions, the scientific assessment of their impact on the landscape environment of heritage sites has emerged as a pivotal concern in heritage conservation and regional development. This study focused on the section of the Guiyang-Nanning High-Speed Railway that traverses the buffer zone of the Libo World Natural Heritage Site in Guizhou Province. Beginning with five primary indicators, including natural landscape and aesthetic value, geological geomorphology and Earth history value, biodiversity value, integrity and protection management, and impact on ecological environment, a visual landscape impact assessment system for high-speed railways was developed based on the analytic hierarchy process (AHP) and the fuzzy comprehensive evaluation method (FCE). Through expert scoring, hierarchical weight calculation, and fuzzy membership degree analysis, a comprehensive assessment was conducted on the landscape ecological quality, visual coordination, and aesthetic perception within the buffer zone following the construction of high-speed railways. The findings indicate that the construction of the Guiyang-Nanning High-Speed Railway generally harmonizes well with the landscape environment of the heritage site. The level of visual disturbance remains within an acceptable range and has not significantly damaged the overall aesthetic value or authenticity of the heritage site. Although the integrity of the landscape in certain local areas has experienced a slight decline due to the exposure of bridge and slope structures, the adverse effects have been effectively mitigated through engineering interventions such as vegetation restoration and color coordination. This study innovatively integrates the AHP with fuzzy mathematics methods to achieve a comprehensive evaluation that combines both qualitative and quantitative approaches. This integration provides a scientifically grounded analytical path and a practical technical framework for assessing the visual impact of linear infrastructure projects, such as high-speed railways, within the buffer zones of World Heritage Sites. The findings offer valuable insights for the protection of landscapes and the sustainable development of infrastructure in heritage sites.
关键词: Heritage site, Buffer zone, Analytic hierarchy process (AHP), Fuzzy comprehensive evaluation method (FCE)
Ecological Space Planning and Management in High-Density Construction Areas: A Case Study of Jinjiang City
摘要: In the context of rapid urbanization, high-density construction areas face significant challenges, including the reduction of ecological spaces and the deterioration of their functions. Planning and managing ecological spaces have emerged as essential strategies to address the conflict between urban development and ecological conservation. Using Jinjiang City, Fujian Province as the case study, this paper systematically examines the significance and primary challenges of ecological space planning in high-density construction areas. It also identifies prevailing issues within the current research domain, including “an overemphasis on top-level design at the expense of implementation, a focus on isolated aspects rather than systemic integration, and prioritization of control over coordination”. This study proposes the key aspects of ecological space planning and management in high-density construction areas, focusing on three fundamental dimensions: human-centered demand orientation, the integration of top-down and bottom-up linkage mechanisms, and a differentiated control system. Drawing on the full-element assessment of the ecosystem, ecological network construction, and full-process control system implemented in Jinjiang City, an integrated approach to ecological space governance, encompassing assessment, planning, and control, has been developed. This approach offers both theoretical insights and practical guidance for optimizing ecological spaces in comparable urban contexts.
关键词: High-density construction areas, Ecological space planning, Ecological management and control, Jinjiang City, Ecological network
Chemometric Characteristics of Soil Carbon, Nitrogen, and Phosphorus in Quercus variabilis Forest Land in the Funiu Mountain Area
摘要: By measuring the contents of soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (P) in rhizosphere and non-rhizosphere soils of Q. variabilis forests with different ages (22, 35, and 45 a) and origins (natural forests and planted forests) in the Funiu Mountain area, the stoichiometric characteristics of carbon, nitrogen, and phosphorus in Q. variabilis forest soils were evaluated. The research results indicated that: ① there were significant differences (P<0.05) in the SOC content between the rhizosphere and non-rhizosphere soils of Q. variabilis planted forests at different stand ages. Moreover, as the stand age increased, the SOC content in both the rhizosphere and non-rhizosphere soils of the planted forests initially decreased and then increased. The TN and TP contents in the rhizosphere and non-rhizosphere soils of Q. variabilis planted forests did not show significant differences across different stand ages, and they exhibited different trends as the stand age increased. ② The SOC and nitrogen to phosphorus ratio (N∶P) exhibited significant rhizosphere effects, whereas the rhizosphere effects of the TN, TP, carbon to nitrogen ratio (C∶N), and carbon to phosphorus ratio (C∶P) were not prominent. In terms of the influence of stand age, the SOC, TN, TP, C∶P, and N∶P were significantly affected. However, the effect of the C∶N at the stand age level was not significant. The interactive effects of soil carbon, nitrogen, phosphorus, and their stoichiometric ratios were all significant. It is recommended to appropriately supplement soil nitrogen and phosphorus to ensure the sustainable development of Q. variabilis forest stand.
关键词: Q. variabilis, Ecological stoichiometry, Soil, Rhizosphere effect, Forest age
Research on Ecological Wisdom of Jingmai Mountain Tea Culture Landscape in Pu’er
摘要: Since the second half of the 20th century, the concept of global green development has gained increasing global attention, with the harmonious coexistence between humans and nature emerging as a critical issue. The cultural landscape of Jingmai Mountain old tea forest, as a typical representative of ecological wisdom in agricultural civilization, showcases a sustainable practice in tea production and livelihood system. Employing a combination of field investigation and literature analysis, this study systematically examines the ecological wisdom of the “forest-tea coexistence” system in Jingmai Mountain from 5 dimensions: tea forest cultivation, land use, village construction, residential buildings, and ethnic culture. The results indicate that Jingmai Mountain has established an integrated system of “ecological technology—spatial planning—cultural institution” for synergistic development: a multi-layered planting structure and vertical gradient development mode have enabled efficient resource utilization;The village layout of "Following the mountain terrain and close to the tea forest" and the climate-adaptive architecture reflect the harmonious unity of living environment and the natural environment; the belief in “Tea Spirit” and community-based governance mechanism ensure the institutionalization and sustainability of ecological protection. This system transforms traditional ecological knowledge into modern practices, providing important reference for the protection of agricultural cultural heritage and serving as a model for ecological protection and rural revitalization in the context of global green development.
关键词: Jingmai Mountain, Ecological wisdom, Tea culture landscape, World Cultural Heritage, Resource utilization