首页|基于电路理论的县域生态安全格局构建:以山东省栖霞市为例

基于电路理论的县域生态安全格局构建:以山东省栖霞市为例

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县域尺度下的生态安全格局构建是当前正开展国土空间规划中的重要组成部分，对区域生态文明建设有重要意义。本研究以山东省栖霞市为例，基于"生态源地提取-综合阻力面构建。生态廊道识别"的框架，运用电路理论模拟生态流动与动物迁徙，识别出生态"夹点"、生态"障碍点"和生态修复分区，使生态安全格局的构建更加可视化、精准化、层次化。结果表明:(1)栖霞市共有生态源地11处，生态廊道20条，其中主要生态廊道7条，潜在生态廊道13条;生态源地数量较少，潜在生态廊道较多，反映出栖霞市生态质量有待改善。(2)共识别出生态"夹点"19处，生态"障碍点"16个，体现了栖霞市生态环境的空间不平衡性。(3)栖霞市生态一级改善区面积为318。65 km2，二级改善区面积为437。21 km2，三级改善区面积为529。44 km2，均存在不同程度的生态问题。因此，栖霞市亟需对"夹点"附近地区生态环境进行改善，提高生态廊道通畅性，并分门别类、因地制宜地对"障碍点"、"断裂点"展开修复工作，提高各源地间景观生态连通性，加强各乡镇间生态协调与生态环境整体性，促进地区可持续性发展。
The construction of county-level ecological security pattern based on circuit theory:A case study in Qixia City,Shandong Province
The construction of ecological security pattern at the county level is an important part of current territorial spatial planning,which is of great significance to the construction of regional ecological civilization.Based on the framework of"Extraction of ecological source-construction of comprehensive resistance surface-identification of eco-logical corridor",we simulated ecological flow and animal migration in Qixia City of Shandong Province by using the circuit theory,and identify ecological"pinch points","barrier points"and ecological restoration zones,mak-ing the construction of ecological security pattern more visual,precise and hierarchical.The results showed that:(1)There are 11 ecological source areas and 20 ecological corridors in Qixia City,including 7 major ecological corridors and 13 potential ecological corridors.There are fewer ecological sources and more potential ecological cor-ridors,indicating that the ecological quality of Qixia should be improved.(2)We identified 19 ecological"pinch points"and 16 ecological"obstacle points",suggesting the spatial imbalance of Qixia's ecological environment.(3)The area of the first-,second-,and third-level ecological improvement area in Qixia City was 318.65,437.21,and 529.44 km2,respectively.All the areas had different degrees of ecological problems.Therefore,it is urgent to improve the ecological environment near the"pinch points",improve the patency of the ecological corridors,repair the"obstacle points"and"fault points"in different categories and according to local conditions,improve the land-scape ecological connectivity among various sources,strengthen the ecological coordination and ecological environ-ment integrity among towns,and promote the sustainable development of the region.

ecological restorationcircuit theoryecological corridorQixia City

薛明月、吴孟泉、郑龙啸、丁志政、王盛臣、谢爱民、刘佳燕、丁敏

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鲁东大学资源与环境工程学院,山东烟台 264000

栖霞市自然资源和规划局,山东烟台 265300

烟台市土地储备和利用中心,山东烟台 260000

山东恒远地理信息技术有限公司,山东济南 250000

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生态修复 电路理论 生态廊道 栖霞市

国家自然科学基金项目烟台市科技创新发展计划重点研发类项目高分辨率对地观测系统国家科技重大专项山东省海上航天装备技术创新中心(鲁东大学)开放课题基金山东省科技型中小企业技术创新能力提升工程项目

420713852022MSGY06279-Y50-G18-9001-22/23MAETIC2021-122022TSGC2371

2024

10.13292/j.1000-4890.202410.021

生态学杂志
中国生态学学会

生态学杂志

CSTPCD北大核心
影响因子：1.439
ISSN：1000-4890
年,卷(期)：2024.43(10)