Changes and effecting factors of grain production in China
文献类型：期刊论文
| 作者 | Chen Yuqi1,2; Li Xiubin1; Wang Jing2 |
| 刊名 | CHINESE GEOGRAPHICAL SCIENCE
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 21期号:6页码:676-684 |
| 关键词 | Grain Production Grain Yield Per Unit Area Grain Sown Area Land Use Intensity |
| 文献子类 | Article |
| 英文摘要 | Based on the data from the Cost-benefit Data of Farm Produce and the China Agricultural Yearbook, this paper aims to examine the spatial and temporal change characteristics of total grain production and its affecting factors. The results show that: 1) During 1980 to 2007, total grain production increased from 3.20 x 10(8) t to 5.02 x 10(8) t in China, with annual increasing rate of 1.68%. From the regional disparities, most of the regions present increasing trend of total grain production except for several regions with higher level of economic development; 2) Grain sown area decreased from 1.17 x 10(8) ha in 1980 to 1.06 x 10(8) ha in 2007, which has negative effect on total grain production; 3) The increase of grain yield per unit area caused by land use intensity changes contributed to the increase of total grain yield greatly. However, as the land use intensity showed that farmers pay more attention to labor-saving input but not yield-increasing input, the less enthusiasm of farmers in grain production may become an important constraint on future grain production increase in China; 4) Based on the results, this paper proposed different land management policies in different regions, for example, the government should protect cultivated land, promote large scale production. As to the less developed regions, the government should pay more attention to agricultural subsidies to promote farmers' enthusiasm in grain production. |
| WOS关键词 | LAND-USE CHANGE ; CULTIVATED LAND ; EFFICIENCY |
| 语种 | 英语 |
| WOS记录号 | WOS:000297342500005 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/67993]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Chen Yuqi |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Minist Land & Resource, Key Lab Land Use, Beijing 100035, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen Yuqi,Li Xiubin,Wang Jing. Changes and effecting factors of grain production in China[J]. CHINESE GEOGRAPHICAL SCIENCE,2011,21(6):676-684. |
| APA | Chen Yuqi,Li Xiubin,&Wang Jing.(2011).Changes and effecting factors of grain production in China.CHINESE GEOGRAPHICAL SCIENCE,21(6),676-684. |
| MLA | Chen Yuqi,et al."Changes and effecting factors of grain production in China".CHINESE GEOGRAPHICAL SCIENCE 21.6(2011):676-684. |
入库方式： OAI收割
来源：地理科学与资源研究所
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