农林生态系统功能优化对石漠化生态修复的作用
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贵州省科技计划重大专项(黔科合平台人才[2017]5411号);贵州省哲学社会科学规划重大专项(21GZZB43)


Scientific approaches to enhance agroforestry ecosystem functions in the ecological restoration of karst desertification regions
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    摘要:

    农林生态系统模仿自然生态系统的组配,结合多年生木本植物、农作物和/或畜禽养殖,有效地促进石漠化区退化生态系统的恢复,提供了重要的物质产品和生态服务。农林生态系统能否持续地供给物质产品和生态服务的关键问题,取决于对其生态系统功能的优化和生态产品供给能力的提升。将关系到农林生态系统在石漠化治理中的持续性贡献和保护恢复生态价值的有效性。基于国内外相关综述和实证分析,重点从内涵、关系和优化提升方案方面进行探讨。(1)剖析了要素与性能在石漠化治理农林生态系统功能优化与生态产品供给能力提升中的内涵体现,明确了要素与性能在石漠化治理农林生态系统的具体作用机理;(2)总结了农林生态系统功能优化与生态产品供给能力提升的关系,指出可持续地向不同利益群体提供生态产品是促进石漠化生态修复的重要环节;(3)探讨了因果网络模型在石漠化治理农林生态系统中的应用,并分析了要素与性能之间级联关系在构建优化提升方案实现途径中的可能性。本研究为科学推进石漠化综合治理提供实用价值和理论参考,适用于其他生态脆弱区,有助于探索优化生态系统功能并提升生态产品供给能力的相关问题。

    Abstract:

    Agroforestry ecosystems mimic the composition of natural ecosystems by combining perennial woody plants, crops, and/or livestock farming. This effectively promotes the restoration of degraded ecosystems in karst desertification areas, providing essential material products and ecological services. The key to whether agroforestry ecosystems can sustainably supply material products and ecological services lies in optimizing their ecosystem functions and enhancing of their capacity to supply ecological products. This will be related to the sustainable contribution of agroforestry ecosystems in karst desertification control and the effectiveness of protecting and restoring ecological values. Based on domestic and international relevant reviews and empirical analyses, the manuscript focuses on the discussion of the connotation, relationship, and optimization improvement scheme. (1) Analyzing the connotation of elements and performance in optimizing agroforestry ecosystem functions and enhancing ecological product supply capacity for karst desertification control, and clarifying the specific mechanisms by which these elements and performance roles contribute to such control; (2) Summarizing the relationship between optimizing agroforestry ecosystem functions and enhancing ecological product supply capacity, and highlighting that sustainably providing ecological products to various stakeholders is crucial for promoting ecological restoration in karst desertification areas; (3) Exploring the application of causal network modeling in karst desertification control within agroforestry ecosystem, and analyzed the cascading relationships between elements and performance to assess the feasibility of developing pathways for optimization and enhancement strategies. The research approach of this manuscript provides practical value and theoretical reference for scientifically advancing comprehensive karst desertification control. It is applicable to other ecotones and helps explore issues related to optimizing ecosystem functions and enhancing the supply capacity of ecological products.

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肖杰,方若男,熊康宁,杨依玲,黄云婷.农林生态系统功能优化对石漠化生态修复的作用.生态学报,2024,44(21):9708~9722

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