共查询到20条相似文献，搜索用时 19 毫秒
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粮食生产事关国运民生,粮食安全更是治国理政的头等大事。从粮食生产能力和粮食经营主体来看,我国口粮自给充足,种植结构持续优化,但面临生态资源约束趋紧、粮食经营主体种粮积极性不高、国际贸易不确定性风险增加等现实困境,给我国粮食生产仍带来不小的冲击。为此,提出深入落实“藏粮于地、藏粮于技”战略,培育适应新时期的新型粮食生产经营主体以及提高风险防控和补贴保障能力等政策建议以保障我国粮食长期持续安全。 相似文献
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正粮食生产是安天下、稳民心的战略产业。"十三五"规划建议提出:"坚持最严格的耕地保护制度,坚守耕地红线,实施藏粮于地、藏粮于技战略,提高粮食产能,确保谷物基本自给、口粮绝对安全。"近年来,昭通市各级农业部门认真贯彻落实"藏粮于地、藏粮于技"战略,以加强基础设施建设、加快科技创新、提升现代物质装备水平为支撑,依靠科技进步,优化区域布局,提高土地产出率、资源利用率、劳动生产率、产品占有率,提 相似文献
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Animals respond for food in the presence of free food 总被引：2，自引：0，他引：2
A J Neuringer 《Science (New York, N.Y.)》1969,166(903):399-401
Pigeons pecked a response disk to gain access to grain rewards while identical grain was freely available from a cup within the experimental chamber. Similarly, rats pressed a lever for food pellets while free pellets were present. It is not necessary, therefore, to deprive an animal of food before it will engage in instrumental responding for food. Such responding can serve as its own motivation and reward. 相似文献
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This paper offers one explanation for the institutional basis of food insecurity in Australia, and argues that while alternative food networks and the food sovereignty movement perform a valuable function in building forms of social solidarity between urban consumers and rural producers, they currently make only a minor contribution to Australia’s food and nutrition security. The paper begins by identifying two key drivers of food security: household incomes (on the demand side) and nutrition-sensitive, ‘fair food’ agriculture (on the supply side). We focus on this second driver and argue that healthy populations require an agricultural sector that delivers dietary diversity via a fair and sustainable food system. In order to understand why nutrition-sensitive, fair food agriculture is not flourishing in Australia we introduce the development economics theory of urban bias. According to this theory, governments support capital intensive rather than labour intensive agriculture in order to deliver cheap food alongside the transfer of public revenues gained from rural agriculture to urban infrastructure, where the majority of the voting public resides. We chart the unfolding of the Urban Bias across the twentieth century and its consolidation through neo-liberal orthodoxy, and argue that agricultural policies do little to sustain, let alone revitalize, rural and regional Australia. We conclude that by observing food system dynamics through a re-spatialized lens, Urban Bias Theory is valuable in highlighting rural–urban socio-economic and political economy tensions, particularly regarding food system sustainability. It also sheds light on the cultural economy tensions for alternative food networks as they move beyond niche markets to simultaneously support urban food security and sustainable rural livelihoods. 相似文献
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