摘要
在借助系统科学理论建立黄土高原生态与经济系统协调发展耦合模型基础上,提出了黄土高原生态与经济系统耦合发展的评判标准和基本类型,并对黄土高原各县域生态与经济系统协调发展状况进行了研究.结果表明:黄土高原生态经济系统之间的相互作用可分为严重失调发展、轻度失调发展、低水平协调发展、高水平良好协调发展4个阶段,在不同的发展阶段又存在着损益-拮抗-磨合-主导-同步发展的循环往复过程;黄土高原生态与经济系统耦合发展度整体上处于较低水平,其中62.7%的县域处于严重失调发展阶段,30.1%的县域处于轻度失调发展阶段,7.1%的县域处于低水平协调发展阶段.基于耦合模型所建立的协调耦合度,能够较好地反映黄土高原经济社会与生态环境之间的交互胁迫耦合发展状况.正确认识黄土高原生态与经济系统耦合规律,采取适当的发展模式,对于促进黄土高原县域生态与经济协调发展具有重大意义.
Based on system theory,a coupling coordinated development model of ecological-economic system in Loess Plateau was established,and the evaluation criteria and basic types of the coordinated development of the ecological-economic system were proposed.The county-level coupling coordinated development of the ecological-economic system was also discussed,based on the local characteristics.The interactions between the ecological and economic systems in Loess Plateau could be divided into four stages,i.e.,seriously disordered development stage,mild-disordered development stage,low-level coordinated development stage,and high level well-coordinated development stage.At each stage,there existed a cyclic process of profit and loss-antagonist-running-dominant-synchronous development.The coupling development degree of the ecological-economic system in Loess Plateau was overall at a lower level,being about 62.7% of the counties at serious disorder,30.1% of the counties at mild disorder,and 7.1% of the counties at low but coordinated level.The coupling development degree based on the model established in this study could better reflect the current social-economic and ecological environment situations,especially the status of coordination.To fully understand the coupling of ecological-economic system and to adopt appropriate development mode would be of significance to promote the county-level coordinated development in Loess Plateau.
出处
《应用生态学报》
CAS
CSCD
北大核心
2011年第6期1531-1536,共6页
Chinese Journal of Applied Ecology
基金
中国科学院知识创新工程重大项目(KSCX-YW-09-07)
中央高校基本科研业务费项目(QN2009040)资助
关键词
协调发展
生态环境
耦合发展度
黄土高原
coordinated development
ecological environment
coupling development degree
Loess Plateau