江苏省内不同区域土地生态安全动态评价及比较——以无锡、南通、徐州为例  

Dynamic Evaluation and Comparison of Land Ecological Security in Different Areas of Jiangsu Province:A Case Study of Wuxi, Nantong and Xuzhou

作　　者：毕雪昊 梅艳[1] 

机构地区：[1]江苏师范大学地理测绘与城乡规划学院,徐州221116

出　　处：《价值工程》2017年第3期63-66,共4页Value Engineering

基　　金：江苏师范大学博士学位教师科研支持项目(09XLR16);江苏师范大学大学生创新创业训练计划项目(XSJCX6005)

摘　　要：针对江苏省内不同地区的土地资源特点和问题,在国内有关土地生态安全研究基础上,使用"压力-状态-响应"模型,构建土地生态安全评价体系,采用层次分析法确定权重,对标准化后的数据进行加权求和,求得无锡、南通、徐州2000-2014年的土地生态安全综合指数,对其进行评价和比较。结果表明:无锡土地生态安全指数从0.4709下降至0.4273,土地生态安全处于风险级;南通土地生态安全指数从0.4101上升至0.6728,达到良好级;徐州土地生态安全指数从0.5554上升至0.6032,土地生态安全达到良好级。到2014年,三市土地生态安全状态存在较大差距。综合各个评价指标,人均耕地面积、有效灌溉率、城镇化水平等对土地生态安全影响较大。According to the characteristics and problems of land resources in different areas of Jiangsu Province, based on the domestic related research of land ecological security, this paper uses the Pressure-State-Response model to construct the land ecological security evaluation index system. It adopts the method of Analytic Hierarchy Process to determine the weight of indexes and weighted sum the normalized data to obtain the land ecological security indexes of Wuxi, Nantong and Xuzhou in 2000-2014 and it carries out the evaluation and comparison. The results show that the land ecological indexes of Wuxi decreased from 0.4709 to 0.4273 during 2000-2014, the land of ecological safety is in risk level in 2014. The land ecological indexes of Nantong increased from 0.4101 to 0.6728 during 2000-2014, the land of ecological safety is in performing safety level in 2014. The land ecological indexes of Xuzhou increased from 0.5554 to 0.6032 during 2000-2014, the land of ecological safety is in performing safety level in 2014. By 2014, there is a big gap among the land ecological security of the three cities. From all evaluation indicators, the per capita arable land area, urbanization level, effective irrigation rate had great influence on land ecological security.

关 键 词：土地生态安全 江苏省 压力-状态-响应 

分 类 号：F321.1[经济管理—产业经济]