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Construction of ecological security pattern based on the importance of ecosystem service functions and ecological sensitivity assessment: a case study in Fengxian County of Jiangsu Province, China

机译：基于生态系统服务功能与生态敏感性评估的生态安全模式构建 - 以江苏省枫县县占地县

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摘要

The construction of ecological security pattern is one of the important ways to alleviate the contradiction between economic development and ecological protection, as well as the important contents of ecological civilization construction. How to scientifically construct the ecological security pattern of small-scale counties, and achieve sustainable economic development based on ecological environment protection, it has become an important proposition in regulating the ecological process effectively. Taking Fengxian County of China as an example, this paper selected the importance of ecosystem service functions and ecological sensitivity to evaluate the ecological importance and identify ecological sources. Furthermore, we constructed the ecological resistance surface by various landscape assignments and nighttime lighting modifications. Through a minimum cumulative resistance model, we obtained ecological corridors and finally constructed the ecological security pattern comprehensively combining with ecological resistance surface construction. Accordingly, we further clarified the specific control measures for ecological security barriers and regional functional zoning. This case study shows that the ecological security pattern is composed of ecological sources and corridors, where the former plays an important security role, and the latter ensures the continuity of ecological functions. In terms of the spatial layout, the ecological security barriers built based on ecological security pattern and regional zoning functions are away from the urban core development area. As for the spatial distribution, ecological sources of Fengxian County are mainly located in the central and southwestern areas, which is highly coincident with the main rivers and underground drinking water source area. Moreover, key corridors and main corridors with length of approximately 115.71 km and 26.22 km, respectively, formed ecological corridors of Fengxian County. They are concentrated in the western and southwestern regions of the county which is far away from the built-up areas with strong human disturbance. The results will provide scientific evidence for important ecological land protection and ecological space control at a small scale in underdeveloped and plain counties. In addition, it will enrich the theoretical framework and methodological system of ecological security pattern construction. To some extent, it also makes a reference for improving the regional ecological environment carrying capacities and optimizing the ecological spatial structure in such kinds of underdeveloped small-scale counties.
机译：生态安全模式的建设是减轻经济发展与生态保护之间矛盾的重要方法之一，以及生态文明建设的重要内容。如何科学地构建小规模县的生态安全模式，实现基于生态环境保护的可持续经济发展，已成为有效调节生态过程的重要主张。以奉贤县为例，为一个例子，选择了生态系统服务功能和生态敏感性的重要性，以评估生态重要性和识别生态源。此外，我们通过各种景观分配和夜间照明修改构建了生态电阻表面。通过最小的累积抗性模型，我们获得了生态走廊，最后构建了与生态抗性表面结构的全面组合生态安全模式。因此，我们进一步阐明了生态安全障碍和区域功能区划的具体控制措施。本案例研究表明，生态安全模式由生态来源和走廊组成，前者发挥着重要的安全作用，后者确保了生态功能的连续性。就空间布局而言，基于生态安全模式和区域分区功能构建的生态安全障碍远离城市核心开发区。至于空间分布，奉贤县的生态源主要位于中南地区，与主要河流和地下饮用水源区高度巧合。此外，关键走廊和主要走廊的长度约为115.71公里和26.22公里，形成了奉贤县的生态走廊。它们集中在县域西南部和西南地区，远离具有强大人类干扰的内置区域。结果将为重要的生态土地保护和生态空间控制提供科学证据，以欠发达和普通县的小规模。此外，它将丰富生态安全模式结构的理论框架和方法系统。在某种程度上，它还为改善区域生态环境承载能力以及优化这种欠发达的小规模县的生态空间结构的参考。

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  • 来源
    《Environment, development and sustainability》 |2021年第1期|563-590|共28页
  • 作者

    Xingxing Jin; Luyao Wei; Yi Wang; Yuqi Lu;

  • 作者单位

    School of Geographical Science College of Geography Science Nanjing Normal University No. 1 Wenyuan Road Nanjing 210023 Jiangsu China;

    School of Geographical Science College of Geography Science Nanjing Normal University No. 1 Wenyuan Road Nanjing 210023 Jiangsu China;

    School of Economics and Management Nanjing University of Science and Technology Nanjing 210094 China;

    School of Geographical Science College of Geography Science Nanjing Normal University No. 1 Wenyuan Road Nanjing 210023 Jiangsu China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023 Jiangsu China Key Laboratory of Virtual Geographic Environment Ministry of Education in Nanjing Normal University Nanjing 210023 Jiangsu China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ecological importance; Ecological sensitivity; Ecological sources; Ecological corridors; Ecological security pattern; Fengxian County of Jiangsu Province China;

    机译：生态重要性;生态敏感;生态来源;生态走廊;生态安全模式;中国江苏省凤县县;

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