基于生态修复效益的生态修复优先区识别
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国家自然科学基金(41925005);辽宁省生态环境厅生态环境科研计划项目(2024年);辽宁省博士科研启动基金计划项目(2022-BS-350)


Identification of priority areas for ecological restoration based on ecological restoration benefits
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    摘要:

    生态系统修复旨在增加植被覆盖度基础上最大化提升生态系统服务功能,科学识别生态修复优先区对精准实施生态修复工程具有重要意义。以沈阳市为例,基于生态系统质量和区域自然属性识别潜在森林生态修复区,分析生态修复效益与潜在生态修复区耦合关系,进而确定生态修复优先区域。结果表明:①不同立地条件生态系统质量参照值差异较大,基于气候因子与土壤肥力设定生态分区,结合植被净初级生产力生态质量表征指标,可准确量化不同区域生态系统质量参考值和现状;②利用生态系统质量与理想参照值进行对比的方法,可以较准确反映研究区森林生态系统生态质量的恢复潜力,进而选择合适的生态修复方式;③生态修复优先区识别过程中,对于是否考虑生态修复效益在生态修复优先区空间识别中存在明显差异,基于潜在修复区与防风固沙效益耦合的方法适用于沙地治理需求地区。研究提出了"理想参照系构建-生态质量评估-潜在生态修复区识别-生态修复效益权衡-高效益低成本区域优先"的生态修复优先区识别方法框架,可广泛应用于森林生态系统生态修复政策制定。

    Abstract:

    Ecosystem restoration aims to maximum the ecosystem services on the basis of increasing vegetation coverage, scientific identification of priority areas for ecological restoration is of great significance to accurately implement ecological restoration projects. Based on the forest restoration in Shenyang, identification of potential forest ecological restoration areas based on ecosystem quality and regional natural properties, the coupling relationship between ecological restoration benefits and potential ecological restoration areas was analyzed, and then the priority areas for ecological restoration were determined. The results showed that: (1) The reference values of ecosystem quality varied greatly under different site conditions. The ecology zoning method which considered the climate factors and soil fertility, combined with the net primary productivity index of vegetation, could accurately characterize and quantify the reference values and status of ecosystem quality in different regions; (2) By comparing the ecosystem quality with the ideal reference value, the recovery potential of forest ecosystem ecological quality was accurately reflected, and then a more suitable ecological restoration method was selected; (3) In the process of identifying priority areas for ecological restoration, there were significant differences in whether to consider the trade-off relationship of ecological restoration benefits in spatial identification of priority areas for ecological restoration, and the method based on the coupling of potential restoration areas and windbreak and sand fixation benefits was suitable for the areas with sandy land management needs. The identification of ecological restoration priority areas based on the coupling of potential ecological restoration areas and wind and sand prevention benefits was suitable for regions with sandy land management needs. In this paper, a method of identifying priority areas for ecological restoration in areas requiring sandy land management is proposed, which includes "construction of ideal reference system-assessment of ecological quality-identification of potential ecological restoration areas-trade-off of ecosystem restoration benefits- priority of high-benefit and low-cost areas", can be widely used in the formulation of forest ecosystem restoration policy-making.

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王迪,郑华,刘智,王磊,苗永刚,赵美超.基于生态修复效益的生态修复优先区识别.生态学报,2025,45(11):5137~5146

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