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The influences of spatiotemporal change of cultivated land on food crop production potential in China
Xu, Xinliang1; Wang, Liang1,2; Cai, Hongyan1; Wang, Luyao3; Liu, Luo4,5; Wang, Hongzhi3
2017-06-01
Source PublicationFOOD SECURITY
ISSN1876-4517
Volume9Issue:3Pages:485-495
Corresponding AuthorCai, Hongyan(caihy@igsnrr.ac.cn)
AbstractThe 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.
KeywordCultivated land GAEZ model Production potential Spatial heterogeneity China
DOI10.1007/s12571-017-0683-1
WOS KeywordAGRICULTURAL PRODUCTIVITY ; EARLY 21ST-CENTURY ; SOIL-EROSION ; PATTERNS ; IMPACTS ; URBANIZATION ; CONVERSION ; EXPANSION ; SECURITY ; PROGRAM
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaFood Science & Technology
WOS SubjectFood Science & Technology
WOS IDWOS:000403459800007
PublisherSPRINGER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/63028
Collection中国科学院地理科学与资源研究所
Corresponding AuthorCai, Hongyan
Affiliation1.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
Recommended Citation
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.
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