Patterns and trends in grain self-sufficiency on the Tibetan Plateau during 1985-2016

doi:10.1007/s11442-020-1801-0

	Patterns and trends in grain self-sufficiency on the Tibetan Plateau during 1985-2016
	Shi Wenjiao 1,2; Lu Changhe 1,2; Shi Xiaoli 3; Cui Jiaying 3
刊名	JOURNAL OF GEOGRAPHICAL SCIENCES
	2020-10-01
卷号	30 期号:10 页码:1590-1602
关键词	Tibetan Plateau grain county scale self-sufficiency spatiotemporal distribution
ISSN号	1009-637X
DOI	10.1007/s11442-020-1801-0
通讯作者	Shi Wenjiao(shiwj@lreis.ac.cn)
英文摘要	Capacity for grain self-sufficiency on the Tibetan Plateau (TP) is an important basis for ensuring social stability and regional sustainability. Thus, based on county-level statistical data for population, grain production and consumption, we analyzed patterns and trends in grain supply and demand at regional, provincial, and county levels on the TP between 1985 and 2016. We applied two indices to evaluate capacity for grain self-sufficiency and found that the regional average self-sufficiency rate increased quickly by 1.97%/a since 1989, reaching 173.03% on the plateau over the period between 2010 and 2016. This indicates that grain supply in this region is able to fully meet demand. In addition, all provinces apart from Xinjiang exhibited similar increasing trends, attaining grain self-sufficiency during 2010-2016. Furthermore, 59% of counties attained grain self-sufficiency over this period, mainly distributed in southern Tibet, in the Sichuan-Tibet junction area, and in eastern Qinghai Province. A number of gaps in grain supply and demand occurred within the headwater regions of the Yangtze and Yellow rivers as well as on the Qiangtang Plateau. Grain self-sufficiency significantly increased over the study period in 36% of counties, mainly distributed in the agricultural areas of southeastern Tibet and in eastern Qinghai. Across the whole plateau, capacity for grain self-sufficiency substantially increased between 1985 and 2016, although serious spatial imbalances remain.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20040301] ; National Natural Science Foundation of China[41771111] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2018071] ; Fund for Excellent Young Talents in Institute of Geographic Sciences and Natural Resources Research, CAS[2016RC201] ; Hebei Natural Science Foundation[D2019205123] ; Research Fund of Hebei Normal University[L052018Z09]
WOS关键词	FOOD SECURITY ; CHINA ; DEMAND
WOS研究方向	Physical Geography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000605211800003
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Fund for Excellent Young Talents in Institute of Geographic Sciences and Natural Resources Research, CAS ; Hebei Natural Science Foundation ; Research Fund of Hebei Normal University
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/136688]
专题	中国科学院地理科学与资源研究所
通讯作者	Shi Wenjiao
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Hebei Normal Univ, Coll Resources & Environm Sci, Key Lab Environm Evolvement & Ecol Construct Hebe, Shijiazhuang 050024, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Shi Wenjiao,Lu Changhe,Shi Xiaoli,et al. Patterns and trends in grain self-sufficiency on the Tibetan Plateau during 1985-2016[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2020,30(10):1590-1602.
APA	Shi Wenjiao,Lu Changhe,Shi Xiaoli,&Cui Jiaying.(2020).Patterns and trends in grain self-sufficiency on the Tibetan Plateau during 1985-2016.JOURNAL OF GEOGRAPHICAL SCIENCES,30(10),1590-1602.
MLA	Shi Wenjiao,et al."Patterns and trends in grain self-sufficiency on the Tibetan Plateau during 1985-2016".JOURNAL OF GEOGRAPHICAL SCIENCES 30.10(2020):1590-1602.