摘要
城市群生态风险评价揭示了其城镇化发展对生态环境产生的损害性影响,对开展区域生态文明建设和保障生态系统稳定性具有重要意义。城市群生态风险受到多源因素的综合作用影响,为把握新型城镇化的生态安全理念,以西部干旱区呼包鄂榆城市群为研究区,从自然景观格局、碳排放状况和经济社会发展态势3个维度构建生态风险评价体系,分析了多维视角的呼包鄂榆城市群生态风险大小及空间分布特征。结果表明:呼包鄂榆城市群景观生态风险主要以中低风险区为主;研究区碳排放生态风险整体呈现东部高、西部低的趋势,且碳排放生态风险严峻区域与研究区建设用地的空间分布高度吻合;呼包鄂榆城市群经济、社会生态风险强度值分别为0.4893和0.5191,各城市经济生态风险强度值依次为:呼和浩特>鄂尔多斯>包头>榆林,社会生态风险强度值依次为:鄂尔多斯>呼和浩特>包头>榆林。
The ecological risk assessment of urban agglomeration reveals the harmful impact of urbanization development on the ecological environment,which is of great significance for carrying out regional ecological civilization construction and ensuring ecosystem stability.In order to grasp the ecological security concept of new urbanization,the ecological risk assessment system was constructed from three dimensions:natural landscape pattern,carbon emission status and economic and social development situation,taking Hohhot-Baotou-Ordos-Yulin urban agglomeration in the western arid region as the research area,and analyzing the ecological risk size and spatial distribution characteristics from a multi-dimensional perspective.The results showed that:The landscape ecological risk of Hohhot-Baotou-Ordos-Yulin urban agglomeration were mainly medium and low risk areas;The overall carbon emissions ecological risk in the study area showed a trend of high in the east and low in the west,the area of high and higher ecological risk areas were highly consistent with the spatial distribution of construction land in the research area.The economic and social ecological risk intensity values of Hohhot-Baotou-Ordos-Yulin urban agglomeration were 0.4893 and 0.5191 respectively.Specifically,the economic ecological risk intensity values of each city are:Hohhot>Ordos>Baotou>Yulin;The social ecological risk intensity values are:Ordos>Hohhot>Baotou>Yulin.
出处
《环境保护与循环经济》
2024年第2期46-51,64,共7页
environmental protection and circular economy
基金
国家社会科学基金项目“新型城镇化背景下西部城市群生态风险多维度评价与安全格局构建研究”(19XMZ102)
内蒙古自治区自然科学基金项目“‘双碳’目标下城市土地利用碳储量响应、预测及空间优化研究”(2022MS07008)
内蒙古财经大学“五大任务”研究专项项目“内蒙古生态经济区生态安全空间格局优化研究”(NCXWD2304)
内蒙古财经大学科研创新项目“基于GIS-FLUS的呼包鄂榆城市群生态系统服务价值时空分异及多情景预测模拟”(NCYX2023-002)。
关键词
土地利用
城市群
生态风险评价
碳排放
land use
urban agglomeration
ecological risk assessment
carbon emission
