内蒙古土默特左旗生态网络构建与优化——基于MSPA与MCR模型分析

Construction and Optimization of Ecological Network Based on MSPA and MCR Models in Tumertzuo Banner, Inner Mongolia

针对内蒙古自治区呼和浩特市土默特左旗所面临的生态挑战,文章通过形态学空间格局分析(MSPA)和最小累积阻力(MCR)模型,识别生态源地、构建阻力面、提取潜在生态廊道,并借此构建生态网络,提出相关的优化策略以加强该区域生态系统的稳定性。结果表明:1)核心区面积为1 109.92 km^(2),主要集中于北部山区,表现出明显的破碎化和分布不均;2)识别研究区内生态源地11个,潜在生态廊道65条,总体连通性较低;3)通过补充7个生态源地,新增55条生态廊道,生态网络结构和连通性得到了显著改善;4)识别出的118个生态断裂点,为生态网络进一步优化提供了重要参考。研究结果对指导土默特左旗及更广泛区域的生态保护和规划具有重要意义,有助于促进可持续生态发展。

In order to address the ecological challenges facing Tumotezuo Banner in Hohhot,Inner Mongolia Autonomous Region,this paper employs Morphological Spatial Pattern Analysis(MSPA)and Minimum Cumulative Resistance(MCR)model to identify ecological sources,construct resistance surfaces,and extract potential ecological corridors,thereby constructing an ecological network and proposing optimization strategies to enhance the stability of the region's ecosystems.The findings reveal:1)The core area,covering 1109.92 km^(2),is predominantly concentrated in the northern mountainous region,exhibiting significant fragmentation and uneven distribution;2)Eleven ecological source areas and 65 potential ecological corridors are identified,indicating the overall low connectivity;3)The structure and connectivity of the ecological network are significantly improved by adding 7 ecological source areas and 55 new ecological corridors;and 4)The 118 ecological breakpoints identified provide crucial references for further optimization of the ecological network.This study holds significant importance for guiding ecological conservation and planning in Tumotezuo Banner and the other areas,contributing to mitigating the impacts of urban development on the ecological environment and promoting the sustainable ecological development.