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临安山核桃林生态安全评价及生态修复研究

Ecological Security Evaluation and Ecological Restoration Research of Hickory Forest in Lin’an District

  • 摘要:
    目的 加强生态系统保护与修复是提升生态环境质量、维护生态安全、促进国民经济可持续发展。
    方法 以生态安全理论为基础,以生态退化严重并引发地质灾害的临安山核桃产区为研究对象,系统分析了生态区位、地质构造、水土流失、降雨等自然因素,以及除草清园、过度使用农药、过度施肥等人为因素对临安山核桃林生态退化的影响和作用机制,研究了产区生态退化影响因子、影响过程与形成机理,评价了临安山核桃林生态安全状态。
    结果 自然和人为因素共同作用导致了产区山核桃林的生态退化,在此基础上构建生态敏感性评价指标体系进行了敏感性综合评估,识别出生态修复关键区域,创新性地提出了生态空间管控和分区施策的对策,针对性地制定了退化山核桃林退果还林、生态经营等修复退化生态路径和提质增效技术措施。
    结论 临安作为全国山核桃最大产区,其生态修复模式可以为同类型其他地区修复受损生态环境、保障生态安全提供参考。

     

    Abstract:
    Objective The excessive use of land by human activities worsens the environment in ecologically fragile areas, which has become an important factor affecting and restricting China’s economic and social development.
    Method Strengthening the protection and restoration of degraded ecosystems in fragile areas is an important way to solve the current problems between ecological environment and economic development. Based on ecological security and the theory of restoration ecology, taking Lin’an Hickory nut producing area as the research object, which has been seriously ecological degraded and caused geological disasters. this paper systematically analyzed the effect and results of the ecological degradation of natural factors such as the ecological location, geological structure, soil erosion and rainfall, as well as human factors such as weeding and garden clearing, excessive use of pesticides, and excessive fertilization in Lin’an Hickory nut producing area, and the process and formation mechanism of ecological degradation were analyzed, evaluated Hickory forest ecological security state.
    Result The studies have shown that it is The combined effect of natural and human factors has led to the ecological degradation of the production area. On this basis, by constructing the ecological sensitivity evaluation index system, and conducting comprehensive sensitivity assessment, key areas for ecological restoration have been identified, and ideas for ecological space management and control and zoning policies have been innovatively put forward. Returning fruits to forests, ecological management, restoration of degraded ecological paths, and technical measures to improve quality and efficiency in economic forest production areas.
    Conclusion As the largest producing area of hickory in China, its ecological restoration model can provide reference for restoring damaged ecological environment and ensuring ecological safety in other areas of the same type.

     

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