基于面板数据聚类分析的土地生态安全评价研究——以陕西省为例

引入面板数据聚类分析法对2008—2014年陕西省各市土地生态安全进行评价,并在此基础上进一步探讨区域经济发展与土地生态安全之间的关系。结果表明:陕西省各市土地生态安全水平可分为3个层次,第一层次为西安市,第二层次包括商洛、汉中和安康市,第三层次包括宝鸡、咸阳、榆林、渭南、铜川和延安市。3个层次存在明显的区域内相似性和区域间分异性;经济发展和土地生态安全水平之间较为符合环境库兹涅茨曲线倒"U"型关系,其中西安市可能已经达到或超过了"拐点",陕南各地处于该曲线的"起点",其余地区则位于"起点"和"拐点"之间的上升区域。

Evaluation of Land Ecological Security Based on Panel Data Cluster Analysis:A Case Study in Shaanxi Province

Panel data cluster analysis was introduced to evaluate land ecological security in Shaanxi Province during 2008—2014.In addition, the relationship between regional economic development and land ecological secu-rity was discussed .The results were as follows:Land ecological security level could be divided into three levels in Shaanxi Province , the first level only included Xi ' an, the second level contained Shangluo , Hanzhong and An-kang, the third level consisted of Xianyang , Baoji, Yulin, Weinan, Tongchuan and Yan'an.There was significant similarity of intra-regional and difference of inter-regional in three levels;Regional economic development and land ecological security level was more in line with the environmental Kuznets curve-reverse U relation, Xi'an may have been reached or exceeded the infection point , southern Shaanxi may be located around the starting point of the curve , other areas may be located between the starting point and infection point with a rising trend .