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Tracking the spatio-temporal change of cropping intensity in China during 2000-2015
Yan, Huimin1,2; Liu, Fang1; Qin, Yuanwei3; Niu, Zhong'en1,2; Doughty, Russell3; Xiao, Xiangming3,4
2019-03-01
Source PublicationENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
Volume14Issue:3Pages:15
Corresponding AuthorLiu, Fang(liuf.08s@igsnrr.ac.cn)
AbstractImprovement in the efficiency of farmland utilization and multiple cropping systems are of prime importance for achieving food security in China. Therefore, spatially-explicit analysis detecting trends of cropping intensity are important preconditions for sustainable agricultural development. However, knowledge about the spatiotemporal dynamics of cropping intensity in China remains limited. In this study, we generated annual cropping intensity maps in China during 2000-2015 using a rule-based algorithm and MODO9A1 time series imagery. We then analyzed the spatio-temporal changes of cropping intensity. The results showed single-cropping and double-cropping areas were about 1.28 +/- 0.027 X 10(6)km(2) and 0.52 +/- 0.027 X 10(6)km(2) in China in 2015 and their areas were relatively stable from 2000-2015. However, cropping intensity had substantial spatial changes during 2000-2015. About 0.164 +/- 0.026 x 10(6)km(2) of single-cropping area was converted to doublecropping area, which mainly occurred in the Huang-Huai-Hai Region. About 0.193 +/- 0.028 x 10(6)km(2) of double-cropping area was converted to single-cropping area, which mainly occurred in the southern part of China. About 85% of croplands with decreases in cropping intensity were located in the southern part of China, and about 80% of croplands with increases in cropping intensity was distributed in the Huang-Huai-Hai Region and the northern part of the Middle and Lower Reaches of the Yangtze River region (p < 0.05). The landscapes of different cropping systems tended to be homogenized in major agricultural production regions.
Keywordcropland food security MODIS remote sensing
DOI10.1088/1748-9326/aaf9c7
WOS KeywordAGRICULTURAL LAND-USE ; CLIMATE-CHANGE ; AREA ; POLICY ; CROPLANDS ; PATTERNS ; SYSTEMS ; PLATEAU ; INDIA
Indexed BySCI
Language英语
Funding ProjectKey Project of National Natural Science Foundation of China[41430861] ; National Key Research and Development Program of China[2016YFC0503700] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDA20010202]
Funding OrganizationKey Project of National Natural Science Foundation of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000461665400002
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/49196
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Fang
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Oklahoma, Ctr Spatial Anal, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
4.Fudan Univ, Inst Biodivers Sci, Shanghai 200433, Peoples R China
Recommended Citation
GB/T 7714
Yan, Huimin,Liu, Fang,Qin, Yuanwei,et al. Tracking the spatio-temporal change of cropping intensity in China during 2000-2015[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(3):15.
APA Yan, Huimin,Liu, Fang,Qin, Yuanwei,Niu, Zhong'en,Doughty, Russell,&Xiao, Xiangming.(2019).Tracking the spatio-temporal change of cropping intensity in China during 2000-2015.ENVIRONMENTAL RESEARCH LETTERS,14(3),15.
MLA Yan, Huimin,et al."Tracking the spatio-temporal change of cropping intensity in China during 2000-2015".ENVIRONMENTAL RESEARCH LETTERS 14.3(2019):15.
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