摘要
采用“自然—经济—社会”评价模型对鄂尔多斯2007-2017年间土地生态安全进行评价,并分析障碍因子及系统耦合协调度,以探究其土地生态安全变化规律。结果表明:(1)2007-2017年间,鄂尔多斯市土地生态安全水平整体呈上升趋势,土地生态安全等级在恶劣级、风险级、敏感级之间波动,但研究期内土地生态安全等级处于较低水平。(2)未来一段时间,经济持续性指标可能是制约鄂尔多斯市土地生态发展的首要因素。(3)自然、经济、社会系统与土地生态安全间的耦合协调性较好,未来仍有提升空间。鄂尔多斯市以后应充分协调土地生态、经济、社会发展之间的关系,适当优化产业结构,实现土地生态的可持续发展。
The"natural-economic-social"evaluation model was used to evaluate the land ecological security between 2007-2017 in Ordos and to analyze the obstacle factors in order to explore the changing law of land ecological security.The results are as follows:(1)During the period 2007-2017,the ecological security level of Ordos land was on the rise,and the ecological security grade of land fluctuated between bad grade,risk level and sensitive grade,but the ecological security grade of the land was at a low level.(2)For some time to come,economic sustainability factors may be the primary factor restricting the ecological development of Ordos land.(3)The coupling coordination between natural,economic and social systems and land ecological security is better,and there is still room for improvement in the future.After Ordos,we should fully coordinate the relationship between land ecology,economy and social development,optimize the industrial structure appropriately,and realize the sustainable development of land ecology.
作者
赵天明
刘学录
于航
ZHAO Tian-ming(School of resources and Environment,Gansu Agricultural University,Lanzhou 730070,China)
出处
《国土与自然资源研究》
2019年第5期39-44,共6页
Territory & Natural Resources Study
基金
生态脆弱区的土地利用与生态安全研究（GSAN-ZL-2015-045）
