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居民收入、营养消费对我国粮食需求变化的影响 被引量:2
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作者 侯国庆 于旭红 闫文彬 《粮食科技与经济》 2015年第5期10-14,共5页
在预测居民人均实际收入的基础上,以消费收入弹性测算了2020年城乡居民粮食消费结构,并使用营养消费概念对其进行了调整。研究发现,未来我国粮食需求量持续增长,饲料用粮在粮食消费中占据主要地位,城乡居民食物用粮结构存在差异且随着... 在预测居民人均实际收入的基础上,以消费收入弹性测算了2020年城乡居民粮食消费结构,并使用营养消费概念对其进行了调整。研究发现,未来我国粮食需求量持续增长,饲料用粮在粮食消费中占据主要地位,城乡居民食物用粮结构存在差异且随着城镇化率的提高对我国粮食整体需求结构产生重要影响。为此,提出继续促进粮食生产,合理调整种植结构和粮食供给的政策建议。 展开更多
关键词 人均收入 营养消费 粮食需求
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收入增长、户籍地差异与营养消费——基于进城农民工家庭的研究 被引量:18
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作者 李国景 陈永福 杨春华 《农业技术经济》 CSSCI 北大核心 2018年第10期66-76,共11页
伴随着中国社会结构的分化和城市化进程,农民工群体内部的异质性不断加大。本文利用国家统计局城镇住户调查数据,聚焦于收入增长和户口所在地的户籍属性对进城农民工家庭营养消费的影响,并探讨收入增长与营养消费关系的户籍地差异。结... 伴随着中国社会结构的分化和城市化进程,农民工群体内部的异质性不断加大。本文利用国家统计局城镇住户调查数据,聚焦于收入增长和户口所在地的户籍属性对进城农民工家庭营养消费的影响,并探讨收入增长与营养消费关系的户籍地差异。结果表明:收入增长和户籍地差异对进城农民工家庭营养消费有显著影响;农民工家庭能量、蛋白质和脂肪需求的收入弹性为分别为0. 593、0. 610和0. 533;在保持其他因素不变的情况下,户籍地差异使本地农民工家庭的人均每天能量、蛋白质和脂肪消费比外地农民工家庭分别高19. 24%、18. 41%和15. 84%。收入增长对外地农民工家庭的能量、蛋白质和脂肪摄入的正向作用大于其对本地农民工家庭的影响。 展开更多
关键词 农民工家庭 收入增长 户籍地差异 营养消费
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China’s Food Security Status:Assessment and Strategic Reflections 被引量:1
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作者 张元红 刘长全 国鲁来 《China Economist》 2015年第6期28-43,共16页
Based on an internationally recognized concept of food security, this paper has created a system of eight indicators to analyze China's food security. For the proper control and analysis of this study, the authors of... Based on an internationally recognized concept of food security, this paper has created a system of eight indicators to analyze China's food security. For the proper control and analysis of this study, the authors of this paper have chosen these indicators: supply, distribution, consumption, utilization efficiency, food security results, stability, sustainability and controllability. Results indicate that China's food security is currently at a high level and has been increasing in recent years. China's food security has multiple advantages with various indicators that include a self-sufficiency ratio, per capita calorie intake and protein supply that are above world average levels, even exceeding the average level of some developed countries. Major challenges facing China's food security include an unreasonable nutrition structure and poor environmental sustainability. In order to increase China's food security level, efforts must be made to adjust output structure, adopt an environmentally friendly pattern of production, attach importance to demand management, reduce unreasonable consumption and loss and moderately lower China's food reserve ratio. 展开更多
关键词 food security index self-sufficiency ratio SUSTAINABILITY
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The Importance of Consuming Charales (Chirostomajordani) for Human Nutrition
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作者 Virginia Melo-Ruiz Beatriz Schettino-Bermudez Karina Sanchez Herrera Nidia Vargas-Martinez Tomas Quirino-Barreda Jesus Juarez-Sandoval 《Journal of Life Sciences》 2014年第1期42-45,共4页
The diversity of existing food may decrease malnutrition through the consumption of underutilized species. In Mexico, the "charal" fish Chirostoma spp. is grouped in five species: Chirostoma grandocule, Chirostoma ... The diversity of existing food may decrease malnutrition through the consumption of underutilized species. In Mexico, the "charal" fish Chirostoma spp. is grouped in five species: Chirostoma grandocule, Chirostoma patzcuaro, Chirostoma humboltianum, Chirostoma attenuatum and Chirostomajordani which live in lakes in the country, and they are not consumed or their demand is low The objective of this research was to analyze the macronutrients of Chirostomajordani charal and inform population their nutritional value to increase human nutrition. Sampling was provided at Xochimilco channels in Xochimilco, D.F., summer and winter seasons at 2009. Fish (200 g) were maintained in channels water for proximal analysis according AOAC methods (1995). The results in dry bases were: protein 74.36%, lipids 1.24%, fiber 0.27%, minerals 4.9%, and soluble carbohydrates 19.23%. This fish grants protein, plastic material essential for human development: its lipid and carbohydrate contents, sources of energy, are low; however, the excess of disseminated proteins increase the energy sources. Fiber is found in a minimum amount. Dehydrated charales may be stored without refrigeration up to 3 months, maintaining their nutritional value. Consumption of the charal should be considered in the basic diet for its nutritional properties, to diminish malnutrition in the Mexico and other countries. 展开更多
关键词 NUTRITION Charales fish Chirostomajordani macronutrients.
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