Spatiotemporal Patterns and Determinants of Grain Self-Sufficiency in China

doi:10.3390/foods10040747

	Spatiotemporal Patterns and Determinants of Grain Self-Sufficiency in China
	Niu, Yingnan 1,2; Xie, Gaodi 1,2; Xiao, Yu 1,2; Liu, Jingya 1; Wang, Yangyang 1,2; Luo, Qi 1,2; Zou, Huixia 1,2; Gan, Shuang 1; Qin, Keyu 1; Huang, Mengdong 1,2
刊名	FOODS
	2021-04-01
卷号	10 期号:4 页码:27
关键词	grain yield grain consumption grain self-sufficiency spatiotemporal patterns China
DOI	10.3390/foods10040747
通讯作者	Xie, Gaodi(xiegd@igsnrr.ac.cn)
英文摘要	The pattern of grain self-sufficiency plays a fundamental role in maintaining food security. We analyzed the patterns and determinants of grain production and demand, as well as grain self-sufficiency, in China over a 30-year period. The results show that China's total grain production, with an obvious northeast-southwest direction, increased by 63%, and yields of rice, wheat, corn, tubers, and beans increased by 16, 49, 224, 6, and 103%, respectively. The trends in ration and feed grain consumption changes at the provincial scale were roughly the same as at the national scale, with the ration consumption ratio decreasing and the ratio of feed grain consumption increasing. The ration consumption in Northwest China was relatively high, while the feed grain consumption rates in Shanghai, Guangdong, Beijing, Tianjin, and Chongqing were higher. Compared with ration and feed grain, the proportions of seed grain and grain loss were relatively small. China's grain consumption mainly concentrated in the central and eastern regions of China. Total grain, rice, corn, wheat, tubers, and beans consumption in feed grain showed a northeast-southwest trend, with consumption centers all shifting southward in the 30-year period. Corn accounted for the largest proportion in feed grain, followed by beans. Urban feed grain and urban ration hot spot areas have gradually transferred from the northwest to southeast coastal areas. The hot spots of rural feed grain consumption and rural ration consumption remained almost unchanged, located in the south of the Yangtze River and Central and Southern China, respectively. The grain self-sufficiency level developed well in the study period, while the areas with grain deficit were Beijing, Tianjin, Shanghai, Zhejiang, Fujian, Guangdong, and Hainan. The areas with high supply and high demand were mainly located in Central and East China, the areas with high supply and low demand were mainly distributed in Northeast China, and the areas with low supply and low demand were mainly located in Western China. The pattern of self-sufficiency of corn in feed grain has remained basically unchanged; the areas with corn feed grain deficit were Central and Southeast China, while North China had corn feed grain surplus. Compared with corn feed, the surplus of soybean feed was relatively poor. Factor detector analysis revealed that in different periods, the same impact factor had different explanatory power in the supply and demand pattern, and the comprehensive consideration of any two factors will enhance the explanatory power of grain supply and demand pattern.
资助项目	Ministry of Science and Technology of the People's Republic of China[2016YFC0503706] ; Ministry of Science and Technology of the People's Republic of China[2016YFC0503403] ; Chinese Academy of Sciences[XDA200204023] ; Chinese Academy of Sciences[KJZD-EW-G20-04] ; Chinese Academy of Sciences[ZDBS-SSW-DQC-002-05] ; National Natural Science Foundation of China[XDA200204023] ; National Natural Science Foundation of China[41971272]
WOS关键词	HEALTH-RISK ASSESSMENT ; AGRICULTURAL PRODUCTION ; FOOD SECURITY ; SOIL-WATER ; YIELD ; PRODUCTIVITY ; EFFICIENCY ; IMPACTS ; REGION ; PLAIN
WOS研究方向	Food Science & Technology
语种	英语
出版者	MDPI
WOS记录号	WOS:000643045100001
资助机构	Ministry of Science and Technology of the People's Republic of China ; Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/161614]
专题	中国科学院地理科学与资源研究所
通讯作者	Xie, Gaodi
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, A11 Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, 19 A Yuquan Rd,19, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Niu, Yingnan,Xie, Gaodi,Xiao, Yu,et al. Spatiotemporal Patterns and Determinants of Grain Self-Sufficiency in China[J]. FOODS,2021,10(4):27.
APA	Niu, Yingnan.,Xie, Gaodi.,Xiao, Yu.,Liu, Jingya.,Wang, Yangyang.,...&Huang, Mengdong.(2021).Spatiotemporal Patterns and Determinants of Grain Self-Sufficiency in China.FOODS,10(4),27.
MLA	Niu, Yingnan,et al."Spatiotemporal Patterns and Determinants of Grain Self-Sufficiency in China".FOODS 10.4(2021):27.