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以保定市为研究对象,运用改进的生态足迹模型对保定市耕地生态安全进行了时空分异研究。研究结果表明:(1)2000~2012年保定市耕地生态压力指数呈逐渐上升趋势,相应的耕地安全水平呈稳定下降趋势;(2)从空间分布来看,位于保定市西部山区的涞源县及东南部地区的安新县、高阳县和蠡县的耕地生态安全水平较高;位于保定市北部及东北部地区的涞水县、易县、涿州市、雄县和高碑店市耕地生态安全水平呈明显的下降趋势;位于保定市中部地区及南部地区的县市耕地生态安全水平较低;位于保定市西南部地区的唐县、曲阳县耕地生态安全有趋于恶化的趋势,阜平县耕地生态安全水平波动较大。
Taking Baoding as the research object, the paper studies the spatial and temporal differentiation of cultivated land ecological security in Baoding using the improved ecological footprint model. The results show that: (1) The ecological pressure index of cultivated land in Baoding City is gradually increasing from 2000 to 2012, and the corresponding level of cultivated land safety is decreasing steadily. (2) From the perspective of spatial distribution, Huangyuan County, located in the western mountainous area of Baoding, And the southeastern areas of Anxin County, Gaoyang County and Pixian County had a higher level of cultivated land ecological security. The cultivated land ecological systems in Laishui County, Yi County, Zhuozhou City, Xiong County and Gaobeidian City, located in the north and northeast of Baoding City, The level of safety is obviously declining; the ecological safety level of arable land in counties and cities located in the central and southern areas of Baoding is relatively low; the ecological security of cultivated land in Tangxian and Quyang counties located in the southwestern Baoding area tends to worsen; County cultivated land ecological security level fluctuations.