%0 Journal Article %T 基于PSR模型典型山区耕地集约利用及其驱动力研究——以四川凉山彝族自治州为例<br>A PSR Model-Based Evaluation for Intensive Cultivated Land Use and Its Driving Force in a Typical Mountainous Area——A Case Study of Liangshan Yi Autonomous Prefecture in Sichuan Province %A 廖仕梅 %A 刘卫平 %A 魏朝富 %A 谢德体 %A 倪九派< %A br> %A LIAO Shi-mei %A LIU Wei-ping %A WEI Chao-fu %A XIE De-ti %A NI Jiu-pai %J 西南大学学报(自然科学版) %D 2018 %R 10.13718/j.cnki.xdzk.2018.05.023 %X 耕地集约利用对地区特别是民族山区的粮食安全和社会稳定具有重要的现实意义.本文以凉山彝族自治州(以下简称为凉山州)为例，构建基于PSR模型的耕地集约利用评价体系对耕地集约利用进行评价，并通过SPSS 20.0软件采用主成分分析法探讨耕地集约利用水平变化的驱动因素.结果表明：1)凉山州2005-2014年间的耕地集约利用水平变化较大，2011年后增幅逐渐增强，状态、响应、压力子系统依次对耕地集约利用产生不同程度影响，三大子系统也相互影响. 2)耕地集约利用水平变化的驱动因素为：自然条件、工程政策措施、经济水平、人口与投入等因素.研究得出：凉山州耕地集约利用变化与PSR模型的三大子系统存在不同程度的相关性.所选指标较好体现凉山州耕地集约利用水平，耕地集约利用的驱动因素符合凉山州实际，证实PSR模型的普适性的同时体现出凉山州耕地集约利用的独特性与差异性.<br>Intensive cultivated land use is of important practical significance for the food security and social stability in a region, especially in minority areas. In a study reported in this paper, Liangshan Yi Autonomous Prefecture in Sichuan Province was taken as the research object, and an evaluation index system for intensive cultivated land use was constructed based on the PSR (pressure-state-response) model to calculate the intensive degree of cultivated land use in Liangshan from 2005 to 2014. Principal component analysis was made of the driving factors for the change in cultivated land intensive use level with the help of the SPSS 20.0 software. The results showed that intensive use of cultivated land of Liangshan markedly changed in 2004-2013 and it increased gradually after 2011. The three subsystems of state, response and pressure (PSR) influenced the intensive utilization of cultivated land in different extents and they interacted with one another as well. The driving factors for change in cultivated land intensive use level included natural conditions, engineering policy measures, economic level, population and investment factors. The study concluded that the cultivated land use intensity in Liangshan was correlated, in different degrees, with the three subsystems, and that the indicators selected can well reflect its actual level. The driving factors accord with the actual situation of Liangshan. It also confirms the general adaptability of the PSR model and unique characteristics and differences of cultivated land intensive use in Liangshan %K PSR %K 典型山区 %K 耕地集约利用 %K 驱动力 %K 凉山州< %K br> %K PSR %K typical mountainous area %K intensive cultivated land use %K driving force %K Liangshan Yi Autonomous Prefecture %U http://xbgjxt.swu.edu.cn/jsuns/html/jsuns/2018/5/201805023.htm