【摘要】 从农地集约利用中的人地关系入手,将"压力—状态—响应"模型引入农地集约利用评价,构建基于PSR模型的农地集约利用评价指标体系,并对四川省农地集约利用状况进行评价。结果表明,1978-2008年四川省农地集约利用水平呈波动上升的趋势,且波动幅度较小;状态指数对集约水平贡献较大,压力指数贡献较小;PSR系统的协调度与农地集约利用水平成高度正相关,充分说明PSR各子系统及其内部各因子之间的协调性很大程度上可以反映农地集约利用的均衡度,模型可信度较高。更多还原

【Abstract】 Starting with the analysis of the man-land relationship in the course of agricultural land intensive utilization,and the"pressure —state—response"model being introduced for evaluation of agricultural land intensive utilization,the index system of agricultural land intensive utilization based on PSR model was established,and then the agricultural land intensive utilization was calculated with the formation of the index system in Sichuan province.The results showed that the level of agricultural land intensive utilization in Sichuan Province showed a rising trend fluctuations and the less volatile from 1978 to 2008.The condition index had greater contribution to the intensity level,while the stress index had less one.Agricultural land intensive utilization was positive correlate with the harmonious degree of PSR,which showed that the harmonious degree between every subsystem of PSR and other inner factors could reflect the balance degree of agricultural land intensive utilization,and also indicated that model was reasonable.更多还原