摘要
基于面板数据,测算2015—2020年云南省16个市(自治州)化肥施用量与粮食产量的区域差异、弹性系数,分析其时空耦合关系动态特征,明晰化肥施用与水稻产量耦合性关系,以期为云南省绿色农业发展和保障粮食安全提供科学参考。研究发现,13个市(自治州)为“双减区”,3个市(自治州)为“他因素影响区”。总体上,全省化肥施用量与水稻产量同步降低,水稻产量增长压力较大。
This paper was aimed to clarify the coupling relationships between fertilizer application and rice yield,which could provide scientific references and suggestions for the development of green agriculture and food security in Yunnan Province.Based on the panel data,the regional differences and elasticity coefficients of fertilizer application and rice yield in 16 cities of Yunnan Province were calculated from 2015 to 2020,and the dynamic characteristics of their spatiotemporal coupling relationships were analyzed.It was found that 13 cities were"double reduction areas",and 3 cities were"other factor affected areas".Overall,Yunnan province was experiencing a simultaneous decrease in fertilizer application and rice yield,resulting in a significant pressure on rice yield growth.
作者
万思琦
袁媛
张庆
杨济达
全怡吉
伏成秀
WAN Siqi;YUAN Yuan;ZHANG Qing;YANG Jida;QUAN Yiji;FU Chengxiu(Institute of Agricultural Economics and Information,Yunnan Academy of Agricultural Sciences,Kunming 650205,Yunnan;Agricultural Environment and Resources Institute,Yunnan Academy of Agricultural Sciences,Kunming 650205,Yunnan;Sugarcane Research Institute,Yunnan Academy of Agricultural Sciences,Honghe 661600,Yunnan)
出处
《中国热带农业》
2024年第3期76-83,共8页
China Tropical Agriculture
基金
云南省重大科技专项计划“云南高原特色有机农业产业技术体系研究与应用”(202202AE090029)
云南创新引导与科技型企业培育计划“云南省祥云县蔬菜产业科技特派团”(202204BI090024)。
关键词
云南省
化肥
水稻
耦合性
Yunnan province
fertilizer
rice
coupling
