Climate Change Data Portal
DOI | 10.2166/wcc.2013.064 |
Effects of changes in climatic variables on maize crop water requirements in Huang-Huai-Hai watersheds; China | |
Mou X.; Xia X.; Gong D.; Liu Q.; Wu Q.; Guo J. | |
发表日期 | 2014 |
ISSN | 20402244 |
起始页码 | 176 |
结束页码 | 191 |
卷号 | 5期号:2 |
英文摘要 | The study of crop water requirements (CWR) under climate change is critical for reasonable crop irrigation. In the present study, the effects of changes in climatic variables from 1961 to 2010 on maize CWR in Huang-Huai-Hai (HHH) watersheds in China were investigated. Five daily climatic factors including maximum temperature (Tmax), minimum temperature (Tmin), wind speed (u2), sunshine hours (nsun), and relative humidity (RH) from 121 weather stations during the maize growing season were studied. The Penman-Monteith method was employed to calculate crop evapotranspiration (ETc), and the spatiotemporal distribution characteristics of ETc and climatic factors were investigated via singular value decomposition. Results showed that the ETc of spring maize slightly increased by 0.4% during the past 50 years, which was primarily caused by the increase in Tmax. The ETc of summer maize decreased by 10.5%, which was primarily caused by the decrease in nsun and u2. Overall, the ETc followed the same spatiotemporal change trend as those of Tmax, nsun, and u2 in the HHH, whereas no coexisting spatiotemporal change between ETc and RH, as well as Tmin, was observed. This result suggests that changes in Tmax, nsun, and u2 are the main climatic factors that influence maize CWR in the HHH. © IWA Publishing 2014. |
英文关键词 | Climate change; Crop water requirement; Huang-Huai-Hai watersheds; Maize; Singular China value decomposition |
语种 | 英语 |
scopus关键词 | Crops; Watersheds; Crop evapotranspiration; Crop water requirements; Maize; Maize growing season; Penman-Monteith method; Spatio-temporal changes; Spatiotemporal distributions; Value decomposition; Climate change; climate change; climate conditions; crop production; evapotranspiration; irrigation; maize; Penman-Monteith equation; relative humidity; spatiotemporal analysis; watershed; wind velocity; China |
来源期刊 | Journal of Water and Climate Change |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/148284 |
作者单位 | School of Environment, Beijing Normal University, State Key Laboratory of Water Environment Simulation, Beijing 100875, China; School of Chemical and Environmental Engineering, Chongqing Three Gorges University, Wanzhou 404100, China; State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China |
推荐引用方式 GB/T 7714 | Mou X.,Xia X.,Gong D.,et al. Effects of changes in climatic variables on maize crop water requirements in Huang-Huai-Hai watersheds; China[J],2014,5(2). |
APA | Mou X.,Xia X.,Gong D.,Liu Q.,Wu Q.,&Guo J..(2014).Effects of changes in climatic variables on maize crop water requirements in Huang-Huai-Hai watersheds; China.Journal of Water and Climate Change,5(2). |
MLA | Mou X.,et al."Effects of changes in climatic variables on maize crop water requirements in Huang-Huai-Hai watersheds; China".Journal of Water and Climate Change 5.2(2014). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Mou X.]的文章 |
[Xia X.]的文章 |
[Gong D.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Mou X.]的文章 |
[Xia X.]的文章 |
[Gong D.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Mou X.]的文章 |
[Xia X.]的文章 |
[Gong D.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。