WANG Jianpeng,YIN Shi,MA Lijun,et al.Spatiotemporal Evolution and Influencing Factors of Cultivated Land Ecological Efficiency in Hebei Province Based on SBM Model[J].Research of Soil and Water Conservation,2022,29(06):81-89.
基于非期望产出的河北省耕地生态效率时空演变及收敛性分析
- Title:
- Spatiotemporal Evolution and Influencing Factors of Cultivated Land Ecological Efficiency in Hebei Province Based on SBM Model
- 文章编号:
- 1005-3409(2022)06-0081-09
- Keywords:
- SBM model; ecological efficiency of cultivated land; temporal and spatial evolution; convergence analysis
- 分类号:
- F301.24
- 文献标志码:
- A
- 摘要:
- 为探究河北省耕地生态效率内在提升机制以及实现耕地经济、社会、生态综合效益最大化,以河北省137个县域为单元,利用非期望SBM模型测度2000—2017年河北省县域耕地生态效率,并从省、市、县层次分析耕地生态效率的时空特征,运用空间自相关探寻空间作用关系,采用收敛模型进行了收敛分析。结果表明:(1)从省、市角度来看,河北省耕地生态效率在研究期内大致呈现先下降后上升的趋势,即由0.773下降到0.563,再上升到0.796,效率水平还有待提高。(2)从县域来看,整体上各县耕地生态效率水平有所提升,但处于无效状态的县域单元较多,占总单元的89.1%,并且在空间上存在一定的聚集效应。(3)从收敛性情况来看,河北省全省和北部、中部的耕地生态效率整体上均存在不稳定的σ收敛,而南部不存在σ收敛。同时河北省耕地生态效率存在绝对β收敛,主要体现在北部、中部、南部之间,其内部不存在绝对β收敛。河北省耕地生态效率尚存较大提升空间,北部、中部、南部区域内部各县耕地生态效率差异正逐步扩大,区域内各县未来应加强合作,促进区域各县农业协调发展。
- Abstract:
- In order to explore the inherent improvement mechanisms of cultivated lands' ecological efficiency in Hebei Province and maximise the comprehensive benefits of cultivated land economy, society and ecology, taking 137 counties in Hebei Province as a unit, the undesired SBM model was used to measure the ecological efficiency of County Cultivated Land in Hebei Province from 2000 to 2017. The temporal and spatial characteristics of cultivated land ecological efficiency were analysed from the provincial, municipal and county levels. The spatial autocorrelation was used to explore the spatial relationship, and the convergence model was used for convergence analysis. The results show that:(1)From the perspective of province and city, the overall cultivated land ecological efficiency of Hebei Province fluctuated in 18 years, showing a trend of first decreasing and then increasing, that is, from 0.773 to 0.563, and then rising to 0.796. Although it has improved, the overall level needs to be improved.(2)From the perspective of counties, the level of cultivated land ecological efficiency in each county has improved on the whole, but there are many county units in an invalid state, accounting for 89.1% of the total research units, and there is a certain spatial aggregation effect in the space of cultivated land ecological efficiency in each county.(3)From the convergence point of view, the ecological efficiency of cultivated land in Hebei Province, the north and the central region have an unstable σ-convergence on the whole, but there is no σ-convergence in the south. At the same time, there are absolute β Convergences in Hebei Province, but absolute β Convergence is reflected in the north, central and south, while there is no absolute β Convergence in the interior. There is still much room for improvement in the ecological efficiency of cultivated land in Hebei Province. The differences in the ecological efficiency of cultivated land among counties in the northern, central and southern regions which are gradually expanding. In the future, the counties in the region should strengthen cooperation to promote the coordinated development of agriculture in each county in the region.
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备注/Memo
收稿日期:2021-08-07 修回日期:2021-09-06
资助项目:2019年度河北省社会科学发展研究课题(2019031204012); 河北农业大学引进人才科研专项基金项目(YJ201807); 保定市哲学社会科学规划课题(2022045)
第一作者:王建鹏(1996—),男,河南安阳人,硕士研究生,研究方向为土地评价与可持续利用。E-mail:1136959902@qq.com
通信作者:徐磊(1985—),男,河北唐山人,博士,讲师,主要从事土地资源利用与区域经济发展研究。E-mail:xulei09@163.com