Variation in Cropping Intensity in Northern China from 1982 to 2012 Based on GIMMS-NDVI Data
Ding, Mingjun1,2; Chen, Qian1; Xiao, Xiangming2,3; Xin, Liangjie4; Zhang, Geli2; Li, Lanhui4
Source PublicationSUSTAINABILITY
Corresponding AuthorChen, Qian(ppcastle93@hotmail.com)
AbstractCropping intensity is an important indicator of the intensity of cropland use and plays a very important role in food security. In this study, we reconstructed a normalized difference vegetation index (NDVI) time-series from 1982 to 2012 using the Savitzky-Golay (S-G) technique and used it to derive a multiple cropping index (MCI) combined with land use data. Spatial-temporal patterns of variation in the MCI of northern China were as follows: (1) The MCI in northern China increased gradually from north-west to south-east; from 1982 to 2012, the mean cropping index across grid-cells over the study area increased by 4.36% per 10 years (p < 0.001) with fluctuations throughout the study period; (2) The mean MCI across grid-cells over the whole of northern China increased from 107% to 115% with all provinces showing an increasing trend throughout the 1980s and 1990s. Aside from Tianjin, Hebei, Beijing, and Shandong, all provinces also displayed an increasing trend between the 1990s and 2000s. Arable slope played an important role in the variation of the MCI; regions with slope <= 3 degrees and the regions with slope >3 degrees were characterized by inverse temporal MCI trends; (3) Drivers of change in the MCI were diverse and varied across different spatial and temporal scales; the MCI was affected by the changing agricultural population, deployment of food policies, and methods introduced for maximizing farmer benefits. For the protection of national food security, measures are needed to improve the MCI. However, more attention should also be given to the negative impacts that these measures may have on agricultural sustainability, such as soil pollution by chemical fertilizers and pesticides.
KeywordGIMMS-NDVI multiple cropping index (MCI) variation spatial-temporal patterns northern China
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[41571095] ; National Natural Science Foundation of China[41440004]
Funding OrganizationNational Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences ; Environmental Studies
WOS IDWOS:000389316200044
PublisherMDPI AG
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorChen, Qian
Affiliation1.Jiangxi Normal Univ, Sch Geog & Environm, Minist Educ, Key Lab Poyang Lake Wetland & Watershed Res, 99 Ziyang Ave, Nanchang 330022, Peoples R China
2.Univ Oklahoma, Ctr Spatial Anal, Dept Microbiol & Plant Biol, 101 David L Boren Blvd, Norman, OK 73019 USA
3.Fudan Univ, Inst Biodivers Sci, Shanghai 200433, Peoples R China
4.Chinese Acad Sci, IGSNRR, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Ding, Mingjun,Chen, Qian,Xiao, Xiangming,et al. Variation in Cropping Intensity in Northern China from 1982 to 2012 Based on GIMMS-NDVI Data[J]. SUSTAINABILITY,2016,8(11):16.
APA Ding, Mingjun,Chen, Qian,Xiao, Xiangming,Xin, Liangjie,Zhang, Geli,&Li, Lanhui.(2016).Variation in Cropping Intensity in Northern China from 1982 to 2012 Based on GIMMS-NDVI Data.SUSTAINABILITY,8(11),16.
MLA Ding, Mingjun,et al."Variation in Cropping Intensity in Northern China from 1982 to 2012 Based on GIMMS-NDVI Data".SUSTAINABILITY 8.11(2016):16.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ding, Mingjun]'s Articles
[Chen, Qian]'s Articles
[Xiao, Xiangming]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ding, Mingjun]'s Articles
[Chen, Qian]'s Articles
[Xiao, Xiangming]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ding, Mingjun]'s Articles
[Chen, Qian]'s Articles
[Xiao, Xiangming]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.