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Spatio-temporal distribution of sugarcane potential yields and yield gaps in Southern China
Zu, Qin1,2; Mi, Chunrong1,2; Liu, De Li3; He, Liang4; Kuang, Zhaomin5; Fang, Quanxiao6; Ramp, Daniel7; Li, Li5; Wang, Bin3; Chen, Yanli5; Li, Jun1,2; Jin, Ning6; Yu, Qiang1,2,6
2018
Source PublicationEUROPEAN JOURNAL OF AGRONOMY
ISSN1161-0301
Volume92Pages:72-83
Corresponding AuthorZu, Qin(zuq.14b@igsnrr.ac.cn) ; Yu, Qiang(yuq@igsnrr.ac.cn)
AbstractThe sustainability and production capacity of sugarcane (Saccharum officinarum (L.)) in Southern China is essential to ensure sugar security in China, yet potential crop yield and yield gap (the difference between actual and potential crop yield) of sugarcane is poorly known. In this study, the sugarcane growth and development model, QCANE, was validated for sugarcane phenology, stalk height, and yields, then used to simulate potential yields and yield gaps of sugarcane in Southern Chine (SC) between 1970 and 2014. Simulated potential yields decreased as longitude and latitude increased, driven by spatial variation in solar radiation and maximum temperature. The gap between potential and water-limited yields was noticeably larger in Yunnan province because of the prevalence of seasonal water deficiency. However, nitrogen stress was the dominant driver of the yield gap, given the abundant precipitation in SC. Across SC, large variation in the yield gap between water-and-nitrogen limited yields and on-farm yields was observed for different counties, a difference that was usually larger than the local yield gap. Averaged across SC, on-farm sugarcane yields were only 27% of potential yields, 31% of water-limited yields, and 52% of nitrogen-limited yields. This result highlights considerable potential to significantly increase sugarcane production by improving varieties, government support, effective management measures such as fertilization, irrigation, and mechanization.
KeywordSugarcane Southern China Potential yield Yield gap QCANE model
DOI10.1016/j.eja.2017.10.005
WOS KeywordWINTER-WHEAT YIELD ; CERES-MAIZE MODEL ; CROP MANAGEMENT ; CLIMATE-CHANGE ; SIMULATION-MODELS ; CHANGING CLIMATE ; NORTHEAST CHINA ; RICE ; PERFORMANCE ; IMPACTS
Indexed BySCI
Language英语
Funding ProjectSpecial Scientific Research Fund of Meteorological Public Welfare Profession of China[GYHY201406030]
Funding OrganizationSpecial Scientific Research Fund of Meteorological Public Welfare Profession of China
WOS Research AreaAgriculture
WOS SubjectAgronomy
WOS IDWOS:000418967900008
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/60873
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZu, Qin; Yu, Qiang
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Wagga Wagga Agr Inst, NSW Dept Primary Ind, Wagga Wagga, NSW 2650, Australia
4.Natl Meteorol Ctr, Beijing 100081, Peoples R China
5.Guangxi Meteorol Disaster Mitigat Inst, Nanning 530022, Guangxi, Peoples R China
6.Chinese Acad Sci & Minist Water Resources, State Key Lab Soil Eros & Dryland Fanning Loess P, Inst Soil & Water Conservat, Yangling 712100, Shanxi, Peoples R China
7.Univ Technol Sydney, Fac Sci, Ctr Compassionate Conservat, Sydney, NSW 2007, Australia
Recommended Citation
GB/T 7714
Zu, Qin,Mi, Chunrong,Liu, De Li,et al. Spatio-temporal distribution of sugarcane potential yields and yield gaps in Southern China[J]. EUROPEAN JOURNAL OF AGRONOMY,2018,92:72-83.
APA Zu, Qin.,Mi, Chunrong.,Liu, De Li.,He, Liang.,Kuang, Zhaomin.,...&Yu, Qiang.(2018).Spatio-temporal distribution of sugarcane potential yields and yield gaps in Southern China.EUROPEAN JOURNAL OF AGRONOMY,92,72-83.
MLA Zu, Qin,et al."Spatio-temporal distribution of sugarcane potential yields and yield gaps in Southern China".EUROPEAN JOURNAL OF AGRONOMY 92(2018):72-83.
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