【摘要】 将生态系统服务价值的空间分布与连通性纳入考量，对关键区域进行生态网络的构建与优化，是提升区域景观结构的连通性以及生态系统整体功能的有效手段。目前，针对这一领域的研究仍显不足，文章基于PLUS-InVEST模型与“源地-廊道”范式，利用2000—2020年土地利用数据，对南岭山区未来生态系统服务价值进行核算，通过识别价值高值区，进而构建并优化南岭山区的生态网络。结果表明：在南岭山区总面积约11.4万km~2的范围内，景观组成相对稳定，以林地为主导类型；该区域典型生态系统服务价值总体呈波动下降的趋势，预计到2030年达最低值；南岭山区的生态网络呈现出西密东疏的空间分布特征，生态源地呈团状分布，边缘地带较为割裂。文章从优先保护生态夹点和重点修复生态障碍点的目标出发，明确了生态网络优化的关键区域，研究成果为完善生态系统服务网络空间体系以及构建可持续的生态安全格局提供了研究支撑。更多还原

【Abstract】 The establishment and optimization of ecological networks in strategic locations is a useful strategy to enhance the connection of regional landscape structures and the general functioning of ecosystems, taking into account the spatial distribution and connectivity of ecosystem service values. There isn’t enough research being done in this field right now. The study used land use data from 2000 to 2020 to determine the future ecosystem service value of the Nanling Mountains region, identify high-value locations, and maximize the value of the ecosystem network. It was based on the PLUS-InVEST model and the “source-corridor” paradigm. The ecological network in the Nanling Mountains region was established and optimized by identifying high value locations, and the future value of ecosystem services in the Nanling Mountains region was computed using land use data from 2000 to 2020. The findings indicate that: The typical ecosystem service value of the region exhibits a general fluctuating and decreasing trend, with the lowest value predicted for 2030; the landscape composition is relatively stable within the total area of about 114 000 km~2 of the Nanling Mountains area, with woodland as the dominant type; with the ecological source area in a regulated distribution and more fragmented edges, the ecological network of the Nanling Mountains region exhibits a spatial distribution that is dense in the west and sparse in the east. The study elucidates the critical domains for ecological network optimization, derived from the goal of giving priority to the preservation of ecological pinch points and emphasizing the rehabilitation of ecological barrier points. The study’s findings offer evidence in favor of enhancing the ecosystem service network’s spatial structure and creating a pattern of long-term ecological security.更多还原