摘要
以秦岭北麓西安段为研究对象,基于MSPA模型和景观连通性分析识别生态源地,通过MCR模型构建综合阻力面,运用电路理论提取生态廊道和生态关键点,构建秦岭北麓西安段的生态网络。结果表明秦岭北麓西安段共识别生态源地12块,主要分布在秦岭山地区域;秦岭北麓西安段共提取生态廊道23条,廊道集中分布在蓝田县和灞桥区域内;秦岭北麓西安段共识别生态夹点28处,面积共计10.80 km^(2),生态夹点中面积最大的为1.78 km^(2),面积最小的为0.05 km^(2)。共识别生态障碍点20个,生态障碍点总面积10.08 km^(2),其中生态障碍点最大面积为3.92 km^(2),最小面积为0.05 km^(2)。
Taking the northern foothills of the Xi'an section of Qinling mountains as the research object,this paper identifies ecological sources based on the MSPA model and landscape connectivity analysis.It constructs the comprehensive resistance surface through the MCR model,and extracts ecological corridors and key ecological points using the circuit theory to construct the ecological network of the northern foothills of the studied area.The results showed that:13 ecological sources were identified in the northern foothills of Xi'an section of Qinling mountains,mainly distributed in the mountainous area of the Qinling Mountains.23 ecological corridors were extracted in the northern foothills of the area,concentrated in Lantian County and Baqiao area.28 ecological pinch points were identified with a total area of 10.80 km^(2),the largest area of which was 1.78 km^(2)and the smallest area was 0.05 km^(2).20 ecological obstacles were identified,with a total area of 10.08 km^(2),the largest area of which was 3.92 km^(2)and the smallest area was 0.05 km^(2).Based on the ecological network of the northern foothills of Xi'an section of Qinling mountains,targeted ecological restoration suggestions were proposed,which could provide scientific reference and basis for the ecological environmental protection and high-quality development of the Qinling Mountains.
作者
王锦
孙幼政
黄珊珊
张永洪
Wang Jin;Sun Youzheng;Huang Shanshan;Zhang Yonghong(Xi'an Fanyi University,School of Information Engineering,Xi'an 710054,China;The First Institute of Photogramemetry and Remote Sensing,Ministry of Natural Resources,Xi'an 710054,China)
出处
《环境科学与管理》
2025年第2期145-149,154,共6页
Environmental Science and Management
基金
陕西省教育厅专项(23JK0455)“基于生态系统服务的陕西省黄河流域景观生态风险评价”
国家自然科学基金资助项目(41501571)。
关键词
生态源地
最小累计阻力模型
电路理论
生态廊道
ecological source
minimum cumulative resistance model
circuit theory
ecological corridor
