山东农业大学学报（自然科学版）2016，Vol.47Issue(2)：207-213,7.DOI:10.3969/j.issn.1000-2324.2016.02.010
土地生态安全评价与障碍因子诊断--以河南省周口市为例
Evaluation and Diagnosis on Land Eco-security and Obstacle Factors--Taking Zhoukou City of Henan Province as a case
摘要
Abstract
To explore the situation of land eco-security and its obstacle factors in the core area of grain production, and provide support for the land dilemma in implementation process of the three national strategic planning of Henan Province. This paper took methods including the improved PSR model, relative entropy weight method and obstacle factor diagnosis model. The result showed that:(1) Press index showed a gradually rise- rapid fall-gradually rise fluctuation trends during 12 years; State index showed a rapid decline -gradually increase-slowly downward trends; Response index and the press index showed a seesaw circulation trends; Composite index decreased from 0.3456 in 2001 to 0.3230 in 2003, then quickly increased to 0.4534 in 2009, finally drop to 0.4394 in 2012. The security levels also experienced from sensitive to general safety level then became critical safety level—presented a inverted U shape change. (2)The obstacle factors mainly concentrated in the system pressure layer. It included the per capital cultivated land, fertilizer and pesticide load, the proportion of agriculture and environmental protection spending. It concluded that the innovation of region and methods not only enriched the study of land eco-security evaluation, but also provided a reference for the similar regions. Henan Province must start from the system pressure to construct green and harmonious land spatial patterns, enlarge financial support to the "three rural" and environmental protection and transform economic developing mode. It should exploit a path of three-agriculture coordination and five-oriented synchronization rather than did it at the cost of grain production and the ecological environment.关键词
土地生态安全/改进PSR模型/障碍度/周口市Key words
Evaluation of land eco-security/improved PSR model/obstacle degree/Zhoukou City分类
管理科学引用本文复制引用
樊鹏飞,段朋辉,刘志丹,彭宏杰,梁流涛..土地生态安全评价与障碍因子诊断--以河南省周口市为例[J].山东农业大学学报（自然科学版）,2016,47(2):207-213,7.基金项目
国家自然科学基金(41301641) （41301641）
教育部人文社会科学研究一般项目(11YJC790095) （11YJC790095）
国家博士后科学基金(2012M510175和2013T60695) （2012M510175和2013T60695）
