| Trends in Moisture Index, Farmland Area, and Their Combined Effects on Grain Production in Northern China | |
Lu, Qingshui1 ; Gao, Zhiqiang1; Xu, Xinliang2; Ning, Jicai1; Bi, Xiaoli1; Xu, XL (reprint author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China. [email protected]
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| 发表期刊 | ADVANCES IN METEOROLOGY
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| ISSN | 1687-9309 |
| 2014 | |
| 页码 | 606787 |
| 关键词 | For-green Policy Wheat Precipitation Soil |
| DOI | 10.1155/2014/606787 |
| 产权排序 | [Lu, Qingshui; Gao, Zhiqiang; Ning, Jicai; Bi, Xiaoli] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China; [Xu, Xinliang] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 作者部门 | 海岸带信息集成与综合管理实验室 |
| 英文摘要 | China policies and Grain-for-Green Project have led to changes in farmland area and grain production. Climate change was also occurring during this period. To analyze the effects of land use and climate change on grain production, the area of farmland in northern China during 1988-2008 was determined from remote sensing images, a moisture index (MI) was calculated from daily meteorological data obtained from weather stations, and unit grain production was obtained from statistical yearbooks. Using statistical and spatial analyses, we determined that MI decreased across most of the study area during this period. This decrease in humidity caused humid zones to decrease and semiarid areas to increase. Combined effects of decreased humid area and conversion of farmland resulted in a decrease in agricultural land in humid areas and an increase in semiarid and arid areas. Increases in unit grain production, machine power, and irrigated farmland area led grain production to increase from 122,799,081 to 188,532,597 ton in humid areas, from 28,875,900 to 115,976,814 in semiarid areas, and from 7,622,100 to 15,490,026 in arid areas, respectively. Increased unit grain production and farmland resulted in increased importance of semiarid areas for grain production.; China policies and Grain-for-Green Project have led to changes in farmland area and grain production. Climate change was also occurring during this period. To analyze the effects of land use and climate change on grain production, the area of farmland in northern China during 1988-2008 was determined from remote sensing images, a moisture index (MI) was calculated from daily meteorological data obtained from weather stations, and unit grain production was obtained from statistical yearbooks. Using statistical and spatial analyses, we determined that MI decreased across most of the study area during this period. This decrease in humidity caused humid zones to decrease and semiarid areas to increase. Combined effects of decreased humid area and conversion of farmland resulted in a decrease in agricultural land in humid areas and an increase in semiarid and arid areas. Increases in unit grain production, machine power, and irrigated farmland area led grain production to increase from 122,799,081 to 188,532,597 ton in humid areas, from 28,875,900 to 115,976,814 in semiarid areas, and from 7,622,100 to 15,490,026 in arid areas, respectively. Increased unit grain production and farmland resulted in increased importance of semiarid areas for grain production. |
| 文章类型 | Article |
| 资助机构 | Meteorology & Atmospheric Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | FOR-GREEN POLICY ; WHEAT ; PRECIPITATION ; SOIL |
| 研究领域[WOS] | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000333615500001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8606 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 |
| 通讯作者 | Xu, XL (reprint author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China. [email protected] |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Qingshui,Gao, Zhiqiang,Xu, Xinliang,et al. Trends in Moisture Index, Farmland Area, and Their Combined Effects on Grain Production in Northern China[J]. ADVANCES IN METEOROLOGY,2014:606787. |
| APA | Lu, Qingshui,Gao, Zhiqiang,Xu, Xinliang,Ning, Jicai,Bi, Xiaoli,&Xu, XL .(2014).Trends in Moisture Index, Farmland Area, and Their Combined Effects on Grain Production in Northern China.ADVANCES IN METEOROLOGY,606787. |
| MLA | Lu, Qingshui,et al."Trends in Moisture Index, Farmland Area, and Their Combined Effects on Grain Production in Northern China".ADVANCES IN METEOROLOGY (2014):606787. |
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