Spatial shifts in grain production increases in China and implications for food security
Spatial shifts in grain production increases in China and implications for food security
复制标题
中国粮食增产的空间变化及其对粮食安全的影响
DOI：
10.10164/j.landusepol.2017.11.037
复制
发表时间：
2018-05
期刊：
影响因子：
7.1
通讯作者：
Liu Yansui
中科院分区：
文献类型：
--
作者：
Wang Jieyong;Zhang Ziwen;Liu Yansui
由于中国人口众多，城市化进程迅速，中国的粮食安全问题仍然是世界关注的问题。据统计，2003年以来，中国粮食总产量持续增长。与此同时，粮食生产增长在全国范围内呈现出各种空间差异。本文探讨了中国县域粮食生产增长的空间转移及其潜在影响。结果表明，粮食生产重心明显北移，越过了作为华北地区农业主要灌溉水源的黄河。无论是绝对粮食产量增长还是相对粮食产量增长模式，都表明华北地区尤其是黄河北岸地区是粮食生产的重要贡献区。中国已将粮食生产转移到土地生产率较低和自然风险较高的边缘地区。虽然我国粮食产量不断增加，但粮食产出系统比以前更加脆弱和不稳定。最后，本文探讨了耕地保护制度、保护农民的粮食补贴政策和农业基础设施的显著改善这三个影响粮食产量空间转移的主要因素，并提出了完善耕地保护制度和农业支持政策的建议。
China’s food security remains a worldwide concern due to its huge population and rapid urbanization. As demonstrated by statistics, China’s total grain output has been continuously increasing since 2003. Meanwhile, the grain production growth has shown various spatial disparities across the country. This paper explores the spatial shifts in grain production increase and their potential impacts at county-level in China. The results show that the barycenter of grain production has moved northward obviously and crossed the Yellow River, which served as the main irrigation water source for agriculture in North China. Both absolute grain output growth and relative growth patterns demonstrate that North China, especially the region of north bank of the Yellow River, has been the significant area contributing to grain production. China has shifted grain production to the marginal regions with lower land productivity and higher natural risk. Although China’s grain output has increased continuously, the grain output system is now more vulnerable and unstable than before. In the final part, the paper discusses the three main factors influencing the spatial shifts in grain output, which are farmland protection system, farmer-protecting grain subsidy policies and the dramatic improvement in agricultural infrastructure, and gives some suggestions on the improvement of farmland protection system and agricultural support policy.
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影响因子：
6.7
作者：
Wusheng Yu;C. Elleby;Henrik Zobbe
通讯作者：
Wusheng Yu;C. Elleby;Henrik Zobbe
影响因子：
6.7
作者：
E. Simelton
通讯作者：
E. Simelton
影响因子：
4.8
作者：
Shi-wei Xu;Jianzhai Wu;Wei Song;Zhi-qiang Li;Zhemin Li;Fantao Kong
通讯作者：
Shi-wei Xu;Jianzhai Wu;Wei Song;Zhi-qiang Li;Zhemin Li;Fantao Kong
DOI：
10.12968/hosp.2002.63.4.2045
发表时间：
2002-04
期刊：
Hospital medicine
影响因子：
--
作者：
R. Patel;R. Kucheria;F. Haddad
通讯作者：
R. Patel;R. Kucheria;F. Haddad
影响因子：
6.2
作者：
Chen, Jie
通讯作者：
Chen, Jie