摘要
基于2010年—2019年中国30个省域层面稻田生态系统的数据,运用面板回归分析了各粮食功能区城镇化对稻田生态净价值的影响。结果表明:在粮食主产区、产销平衡区与粮食主销区,城镇化对稻田生态净价值有显著的正向影响,且城镇化对粮食主销区的稻田生态净价值存在显著的单重门槛效应。结合粮食功能区城镇化对稻田生态净价值影响的差异性,因地制宜提出了稻田生态系统可持续性保护与粮食安全保障的政策建议。
Based on the data of rice field ecosystem in 30 provinces in China from 2010 to 2019,panel regression was used to analyze the impact of urbanization in each grain functional area on the net ecological value of rice field.The results showed that urbanization had a significant positive effect on the ecological net value of paddy fields in the main grain-producing area,the productionmarketing balance area and the main grain-selling area,and urbanization had a significant single threshold effect on the ecological net value of paddy fields in the main grain-selling area.Considering the difference of impacts of urbanization on the net ecological value of rice fields,this paper put forward some policy suggestions on sustainable protection of rice field ecosystem and food security according to local conditions.
作者
杨腾
Yang Teng(College of Economics and Management,Hunan University of Arts and Sciences,Changde 415000,Hunan,China)
出处
《农业技术与装备》
2024年第9期39-41,44,共4页
Agricultural Technology & Equipment
基金
湖南省哲学社会科学基金青年项目+基于生态净价值及其空间分布的稻田生态系统可持续性评价+(19YBQ083)。
关键词
城镇化
稻田
生态净价值
生态系统
门槛效应
urbanization
rice fields
ecological net value
ecosystem
threshold effect
