基于PSR框架的耕地集约利用评价及驱动力研究——以关中地区为例

Evaluation of Intensive Use of Cultivated Land Based on PSR Model and Its Driving Forces Analysis——A Case Study of Guanzhong Region

论文以关中地区为评价区域,基于"压力-状态-响应("PSR)模型构建了耕地集约利用评价指标体系,运用熵值法及综合指数法对陕西关中地区及各地市2000-2009年的耕地集约利用水平进行了动态评价。并采用因子分析法,分析了影响耕地集约利用的驱动力因素。结果表明:2000年-2009年关中地区耕地集约度呈现波动变化,并在近两年具有下降趋势;关中各地区耕地集约利用水平差异显著;社会经济和耕作制度因素以及自然因素是影响关中地区耕地集约利用的主要驱动因素。

Based on PSR model,this paper established a set of scientific and practical index system in evaluating the intensive use of cultivated land and conducted an evaluation in Guanzhong region from 2000 to 2009 using entropy method and comprehensive index method.Factor analytic method was used to analyze the driving forces of intensive use of cultivated land.The results showed that the indices of intensive cultivated land use in Guanzhong fluctuated from 2000 to 2009 and had a downward trend for the last two years.The intensive use level of cultivated land took an obvious spatial variation in Guanzhong region.The main driving forces influencing the intensive use of cultivated land in Guanzhong region are socioeconomic,cropping system and natural factors.