Changes of multiple cropping in Huang-Huai-Hai agricultural region, China
文献类型：期刊论文
| 作者 | Yan Huimin1,2; Liu Fang1; Niu Zhongen1,2; Gu Fengxue3; Yang Yanzhao1,2 |
| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 28期号:11页码:1685-1699 |
| ISSN号 | 1009-637X |
| 关键词 | Huang-Huai-Hai agricultural region MCI spatio-temporal dynamics MODIS EVI landscape pattern |
| DOI | 10.1007/s11442-018-1537-2 |
| 通讯作者 | Yan Huimin(yanhm@igsnrr.ac.cn) |
| 英文摘要 | Multiple cropping index (MCI) is the ratio of total sown area and cropland area in a region, which represents the regional time intensity of planting crops. Multiple cropping systems have effectively improved the utilization efficiency and production of cropland by increasing cropping frequency in one year. Meanwhile, it has also significantly altered biogeochemical cycles. Therefore, exploring the spatio-temporal dynamics of multiple cropping intensity is of great significance for ensuring food and ecological security. In this study, MCI of Huang-Huai-Hai agricultural region with intensive cropping practices was extracted based on a cropping intensity mapping algorithm using MODIS Enhanced Vegetation Index (EVI) time series at 500-m spatial resolution and 8-day time intervals. Then the physical characteristics and landscape pattern of MCI trends were analyzed from 2000-2012. Results showed that MCI in Huang-Huai-Hai agricultural region has increased from 152% to 156% in the 12 years. Topography is a primary factor in determining the spatial pattern dynamics of MCI, which is more stable in hilly area than in plain area. An increase from 158% to 164% of MCI occurred in plain area while there was almost no change in hilly area with single cropping. The most active region of MCI change was the intersection zone between the hilly area and plain area. In spatial patterns, landscape of multiple cropping systems tended to be homogenized reflected by a reduction in the degree of fragmentation and an increase in the degree of concentration of cropland with the same cropping system. |
| WOS关键词 | VEGETATION INDEXES ; HARMONIC-ANALYSIS ; DRIVING FORCES ; LAND ; AVHRR ; MODIS ; INTENSITY ; PATTERNS ; PRODUCTIVITY ; PERFORMANCE |
| 资助项目 | National Natural Science Foundation of China[41430861] ; National Natural Science Foundation of China[41471453] ; Strategic Priority Research Program, the Chinese Academy of Sciences (CAS)[XDA20010202] |
| WOS研究方向 | Physical Geography |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000446383000010 |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program, the Chinese Academy of Sciences (CAS) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/52763]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yan Huimin |
| 作者单位 | 1.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.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan Huimin,Liu Fang,Niu Zhongen,et al. Changes of multiple cropping in Huang-Huai-Hai agricultural region, China[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2018,28(11):1685-1699. |
| APA | Yan Huimin,Liu Fang,Niu Zhongen,Gu Fengxue,&Yang Yanzhao.(2018).Changes of multiple cropping in Huang-Huai-Hai agricultural region, China.JOURNAL OF GEOGRAPHICAL SCIENCES,28(11),1685-1699. |
| MLA | Yan Huimin,et al."Changes of multiple cropping in Huang-Huai-Hai agricultural region, China".JOURNAL OF GEOGRAPHICAL SCIENCES 28.11(2018):1685-1699. |
入库方式： OAI收割
来源：地理科学与资源研究所
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