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[学术文献 ] Constructing a composite index to evaluate multidimensional variations in food security over different regions 进入全文
SPRINGER
Understanding food security level on a large scale is crucial for grasping global food security and issuing timely warnings about regional food systems risks. Current regional spatiotemporal distribution and multidimensional comparisons of global food security are insufficient. Therefore, this paper proposed a weighting technique combing the subjective AHP method with the objective CRITIC method, and developed a new composite index to measure food security multidimensionally. Using the food security composite index (FSCI), this study explored the spatiotemporal evolution of food security in different dimensions at both global and regional levels, based on panel data from 2001 to 2020. The variation of FSCI remained stable in the quantity dimension across all regions, with significant improvements in economic security observed in Europe and Latin America and Caribbean, and Asia showed an upward trend in resource dimension. Compared to the global average, Europe had a pronounced advantage, whereas Sub-Saharan Africa had a significant disadvantage.
[学术文献 ] The evolution of food security in Japan-Based on an indicator evaluation system including climate change indicators 进入全文
PUBLIC LIBRARY SCIENCE
As climate change intensifies, food security has received widespread attention. This study examines the development of Japan's food security index and its relationship with climate change. From these findings, a food security indicator system for Japan was established. The food security system has six dimensions: availability, nutrition, climate change, society, economics, and fertilizer. The factors affecting food security are complex and variable, and this paper adds the Fertilizer Security Index (FSI) to the previous studies. The overuse of fertilizers directly contributes to soil and atmospheric pollution, which can indirectly lead to issues of food quality insecurity. Including this factor within the food security system is fully justified. This enhances the precision of the food security index system to some degree. The results showed that Japan's overall food security index exhibited a slight downward trend from 0.113 in 1980 to 0.099 in 2022. Food security reached its lowest point of about 0.067 in 1993. In addition, all five indicators, except the fertilizer index, put pressure on the food security index. Due to the uncertainty inherent in climate change, specifically its ambiguous positive and negative impacts on food security, the Climate Change Security Index provides detailed evidence in this paper supporting whether climate change contributes to or undermines food security. Finally, the study put forward recommendations to ensure food security.
[学术文献 ] 粮食产销区省际横向利益补偿机制研究 进入全文
中国知网
[目的]构建粮食产销区省际横向利益补偿机制，对于做到“两个不吃亏”，提升“两个积极性”，实现主产区粮食稳产保供、主销区粮食安全、产销区协调发展及共同富裕具有重要意义。[方法]通过文献研究分析法文章对产销区粮食生产、农民收入、财政收入、经济发展、产业结构等进行了比较。[结果]研究表明，主产区是我国粮食生产的核心区，成为确保国家粮食安全的“压舱石”，但主产区也面临着诸多困境：粮食生产发展与农民增收不同步、与财政收入增加不协同、与经济实力增强不同频、与产业结构优化不统一。强化粮食产销区横向利益补偿具有历史必然性，是生产关系适应生产力发展规律在粮食生产中的直接体现、是确保国家粮食安全的内在要求、是建设农业强国的必然要求、是促进产销区区域协调发展的必然选择。[结论]建议应进一步浓缩粮食主产区、有效甄别补偿对象、精准确定补偿依据、动态调整补偿标准、创新补偿方式、拓展补偿资金来源、明确补偿目标、加强补偿效果评价等，加快构建粮食产销区横向利益补偿机制。
[学术文献 ] 北京市主要粮食作物单产现状、对策与建议 进入全文
中国知网
我国始终将粮食安全作为治国理政的头等大事，大面积提高粮食单产已成为粮食生产的重心。为了解北京市主要粮食作物的单产水平现状，通过对北京市13个主要涉农区的粮食生产情况开展调研，梳理限制全市粮食作物单产水平提升的若干因素，挖掘出当前粮食生产过程中存在的农业生产基础条件差、种粮主体积极性不高、先进技术覆盖率较低等问题，从进一步挖掘高产潜力、打造高产典型、促进大面积均衡增产等方面提出对策与建议。
[学术文献 ] 转基因技术赋能大豆产业的现状、挑战与展望 进入全文
中国知网
为了探寻大豆产业的创新发展路径，系统梳理了大豆转基因技术的发展历程、技术原理，以及转基因大豆应用的现状、面临的挑战及应用前景。转基因技术在大豆领域的运用，极大地提升了大豆在抗虫、抗病、抗除草剂方面的性能，同时也对大豆品质改良起到了关键作用。然而，转基因大豆的安全性问题引发了社会各界广泛关注与讨论。随着生物技术的持续革新，转基因大豆有望在助力保障全球粮食安全、满足不断增长的市场需求等方面发挥更为关键的作用。
[学术文献 ] 粮食安全视角下黑龙江省县域耕地非粮化时空演化及驱动机制 进入全文
中国知网
[目的]粮食安全是国家安全的核心基础，而耕地非粮化现象对粮食产能构成直接威胁。当前研究多聚焦宏观尺度，缺乏县域单元时空演化及多维驱动机制的深入分析。文章以黑龙江省县域单元为研究区，旨在揭示其耕地非粮化的时空分异规律及核心驱动因素，为东北粮食主产区可持续发展提供科学依据。[方法]基于2012—2022年县域尺度耕地非粮化数据，采用重心模型、标准差椭圆、空间自相关分析及地理探测器方法，系统解析非粮化时空演变特征，并探究自然、经济、社会与政策因素的交互驱动机制。[结果]（1）时序上，非粮化率呈“降-升-稳”3个阶段演变：2012—2015年下降1.58%，2016—2017年回升0.58%，2018—2022年缓升0.6%。（2）空间上，非粮化重心向木兰县依次迁移49.75 km和15.15 km，标准差椭圆面积缩减16.4%，哈尔滨近郊和牡丹江市因交通与市场优势形成高-高集聚，同江市、饶河县等传统黑土区维持低-低集聚。（3）驱动机制上，交通密度、农业产值占比及农业劳动力占比为核心驱动因子，且存在协同增强效应，其作用强度与路径在绥化市海伦市、哈尔滨近郊等县域因资源禀赋差异呈现空间分异。[结论]黑龙江省县域耕地非粮化是“交通-经济-政策”多维交互作用的结果。建议优化产业布局、强化科技支撑、完善政策体系，以平衡粮食安全与农业经济效益。
