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非洲大湖地区农业发展水平与粮食安全耦合关系及影响因素研究

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以农业发展水平与粮食安全为基础,综合运用熵权法、耦合协调模型、灰色关联度模型,对非洲大湖地区2000年-2020年农业发展水平与粮食安全耦合关系及影响因素进行测度研究.结果发现:(1)农业发展水平与粮食安全水平时间关联显著,农业发展水平从2000年的0.214提升到2020年的0.304,粮食安全水平从2000年的0.219提升到2020年的0.269.(2)农业发展水平与粮食安全水平时空耦合关联以时间尺度为主,2000年的濒临失调(0.457)发展到2020年的勉强协调(0.514).(3)农业发展水平演替驱动了粮食安全水平演化,大湖地区农业发展中技术投入(0.813)对粮食安全的关联度最低,土地投入(0.928)对粮食安全的关联度最高.
Study on the Coupling Relationship and Influence Factors between Agricultural Development Level and Food Security in the Great Lakes Region of Africa
Based on agricultural development level and food security,this study comprehensively uses the entropy weight method,coupling coordination model and grey correlation model to study the cou-pling relationship and influence factors between agricultural development level and food security in the Great Lakes region of Africa from 2000 to 2020.The results show that:(1)There is a significant tem-poral correlation between the level of agricultural development and the level of food security,with the level of agricultural development rising from 0.214 in 2000 to 0.304 in 2020,and the level of food secu-rity rising from 0.219 in 2000 to 0.269 in 2020;(2)The spatial-temporal coupling between the level of agricultural development and the level of food security is dominated by the time scale,with the near dislocation in 2000(0.457)developing into a barely harmonized one in 2020(0.514);(3)The evolu-tion of agricultural development level drives the evolution of food security level,with technological in-puts(0.813)having the lowest correlation with food security and land inputs(0.928)having the high-est correlation with food security in the Great Lakes region's agricultural development.

Agricultural development levelFood securityInfluence factorGreat Lakes region of Africa

李明、杨叶华、迟恒鑫、李安林、牛乐德

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云南师范大学 地理学部,云南 昆明 650500

云南师范大学 外国语学院,云南 昆明 650500

农业发展水平 粮食安全 影响因素 非洲大湖地区

国家自然科学基金资助项目云南省基础研究计划资助项目

42261037202201AT070024

2024

云南师范大学学报(自然科学版)
云南师范大学

云南师范大学学报(自然科学版)

CSTPCD
影响因子:0.54
ISSN:1007-9793
年,卷(期):2024.44(4)