The influences of spatiotemporal change of cultivated land on food crop production potential in China

doi:10.1007/s12571-017-0683-1

	The influences of spatiotemporal change of cultivated land on food crop production potential in China
	Xu, Xinliang 1; Wang, Liang 1,2; Cai, Hongyan 1; Wang, Luyao 3; Liu, Luo 4,5; Wang, Hongzhi 3
刊名	FOOD SECURITY
	2017-06-01
卷号	9 期号:3 页码:485-495
关键词	Cultivated land GAEZ model Production potential Spatial heterogeneity China
ISSN号	1876-4517
DOI	10.1007/s12571-017-0683-1
通讯作者	Cai, Hongyan(caihy@igsnrr.ac.cn)
英文摘要	The impact of changes in cultivated land on the production potential of food crops in China during the period of 1990-2010 was studied using land use data and the Global Agro-ecological Zones (GAEZ) model. The contribution of crop production potential per unit cultivated land area (PPCLA) to the total food-energy based production potential (TPP) of food crops was further investigated. From 1990 to 2010, China has experienced a net increase of cultivated land, resulting from a net increase in northern China and a smaller net decrease in the south. However, the TPP reduced by 9.64 x 10(12) kcal despite an overall cultivated land increase for crops. This was attributed to the spatial heterogeneity of PPCLA in the cultivated land, whereby the average PPCLA of the newly cultivated land was much lower than that of the lost land. The PPCLA gap between the newly developed land and the lost cultivated land expanded from 3.16 x 10(6) kcal/ha in the first decade (1990-2000) to 6.49 x 10(6) kcal/ha in 2000-2010. Contributions of PPCLA to TPP varied among regions, and the regions with the largest contributions were consistent with those with the largest PPCLA gaps. Such regions included the Sichuan Basin and surrounding region in 1990-2000, and the Huang-Huai-Hai Plain during 2000-2010. Based on these research findings, key implications for land use policies in relation to major food crops in China are discussed.
资助项目	National Key Project of Scientific and Technical Supporting Programs[2013BAC03B01] ; Key Deployment Project of the Chinese Academy of Sciences[KJZD-EW-TZ-G10] ; Cultivate Project of the Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science[TSYJS03]
WOS关键词	AGRICULTURAL PRODUCTIVITY ; EARLY 21ST-CENTURY ; SOIL-EROSION ; PATTERNS ; IMPACTS ; URBANIZATION ; CONVERSION ; EXPANSION ; SECURITY ; PROGRAM
WOS研究方向	Food Science & Technology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000403459800007
资助机构	National Key Project of Scientific and Technical Supporting Programs ; Key Deployment Project of the Chinese Academy of Sciences ; Cultivate Project of the Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/63027]
专题	中国科学院地理科学与资源研究所
通讯作者	Cai, Hongyan
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Cent China Normal Univ, Coll Urban & Environm Sci, Key Lab Anal & Simulat Geol Proc Hubei Prov, Wuhan 430079, Peoples R China 4.South China Agr Univ, Guangdong Prov Key Lab Land Use & Consolidat, Guangzhou 510642, Guangdong, Peoples R China 5.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Xu, Xinliang,Wang, Liang,Cai, Hongyan,et al. The influences of spatiotemporal change of cultivated land on food crop production potential in China[J]. FOOD SECURITY,2017,9(3):485-495.
APA	Xu, Xinliang,Wang, Liang,Cai, Hongyan,Wang, Luyao,Liu, Luo,&Wang, Hongzhi.(2017).The influences of spatiotemporal change of cultivated land on food crop production potential in China.FOOD SECURITY,9(3),485-495.
MLA	Xu, Xinliang,et al."The influences of spatiotemporal change of cultivated land on food crop production potential in China".FOOD SECURITY 9.3(2017):485-495.