基于PSR模型的耕地可持续集约利用评价研究——以京津冀地区为例

Evaluation of sustainable intensive utilization of cultivated land based on PSR model:Take Beijing-Tianjin-Hebei region as an example

以相关文献梳理为基础,构建基于“压力-状态-响应”(PSR)模型的耕地可持续集约利用评价体系,并以京津冀地区为研究区,评价各地市耕地可持续集约利用现状及变化特征。结果表明,京津冀各地区2005—2015年耕地可持续集约指数总体呈增高趋势,但呈现不规律波动变化特点。耕地可持续集约利用空间冷热点分布呈现出“中部热、南北部冷”的格局;2005—2015年系统协调性整体呈现稳定趋势。初步构建的耕地可持续集约利用评价体系及其在京津冀地区的实证,可为探讨耕地可持续集约利用问题提供借鉴。

Based on combing relevant literature,the evaluation system of sustainable intensive use of cultivated land based on the“stress-state-response”(PSR)model was constructed,and taking Beijing-Tianjin-Hebei region as the research area,the sustain⁃able intensive use of cultivated land use the status quo and changing characteristics were evaluated.The results showed that the sus⁃tainable intensification index of cultivated land in Beijing-Tianjin-Hebei regions increased from 2005 to 2015,but showed irregular fluctuations.The distribution of cold and hot spots in the sustainable intensive use of cultivated land showed a pattern of“hot in the central region and cold in the north and south”.The overall coordination of the system showed a stable trend from 2005 to 2015.The preliminary evaluation system of sustainable intensive use of cultivated land and its empirical evidence in Beijing-Tianjin-Hebei re⁃gion can provide reference for the discussion of sustainable intensive use of cultivated land.