摘要
基于压力-状态-响应-管理(pressure-state-response-management,PSRM)模型构建了评价指标体系,结合层次分析法(analytic hierarchy process,AHP)和CRITIC法确定指标的综合权重,计算出吉林省西部地区的生态脆弱性指数,揭示了其生态脆弱性时空分布格局及动态变化趋势;运用冷热点分析方法,探究了生态脆弱性的空间聚集特征;借助地理探测器中的因子探测,分析了影响生态脆弱性的主要驱动因子.结果表明:2011—2021年吉林省西部地区生态脆弱性以轻度、中度脆弱为主,空间分布存在明显的地域差异,总体呈“西高东低”的显著特征;2011、2016、2021年吉林省西部地区生态脆弱性平均值分别为0.392、0.417、0.376,整体处于中度脆弱水平;剖析驱动因子可以发现,植被净初级生产力、景观多样性指数、年均气温对区域内生态脆弱性有较强的驱动作用.研究结果可为该区域生态保护及高质量的可持续发展提供科学的参考数据.
Based on the pressure-state-response-management(PSRM)model,a evaluation index system is constructed,the comprehensive weight of indicators is determined by combining the analytic hierarchy process(AHP)and the CRITIC method,and the ecological vulnerability index of western Jilin Province is calculated.The spatial and temporal distribution pattern and dynamic change trend of its ecological vulnerability were revealed;using the method of hot and cold spot analysis,the spatial aggregation characteristics of ecological vulnerability were explored;the main driving factors affecting ecological vulnerability were analyzed by means of factor detection in geographic detectors.The results showed that:From 2011 to 2021,the ecological vulnerability in western Jilin Province was mainly mild and moderate,and the spatial distribution showed obvious regional differences,showing a significant feature of“high in the west and low in the east”;in 2011,2016 and 2021,the average values of ecological vulnerability in western Jilin Province were 0.392,0.417 and 0.376,the overall level of vulnerability is moderate;analysis of driving factors showed that net primary productivity of vegetation,landscape diversity index and average annual temperature had strong driving effects on ecological vulnerability in the region.The research results can provide scientific reference data for ecological restoration and high-quality sustainable development in this region.
作者
姜海玲
张舒涵
范铭轩
于海淋
郭艺涵
沈佳琳
JIANG Hai-ling;ZHANG Shu-han;FAN Ming-xuan;YU Hai-lin;GUO Yi-han;SHEN Jia-lin(College of Tourism and Geographical Science,Jilin Normal University,Siping 136000,China)
出处
《吉林师范大学学报（自然科学版）》
2023年第4期131-140,共10页
Journal of Jilin Normal University:Natural Science Edition
基金
国家自然科学基金项目(41701424)
教育部产学合作协同育人项目(220802313193622)
吉林省教育厅科学技术研究规划项目(JJKH20230502KJ)。
