| Measurement of evapotranspiration of irrigated spring wheat and maize in a semi-arid region of north China | |
| Li, YL; Cui, JY; Zhang, TH; Zhao, HL | |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 2003-06-06 | |
| 卷号 | 61期号:1页码:1-12 |
| 关键词 | spring wheat maize crop ET crop coefficients lysimeter reference ET |
| ISSN号 | 0378-3774 |
| DOI | 10.1016/S0378-3774(02)00177-4 |
| 通讯作者 | Li, YL() |
| 英文摘要 | Gravimetric lysimeter experiments were conducted to measure the daily evapotranspiration (ETc) of spring wheat in 1998 and maize in 1999 at Naiman, Inner Mongolia, China. The weekly ETc range of spring wheat varied from 12.32 to 45.43 mm per week. The maximum ETc occurred at the 9th week after sowing during the mid-season stage, and the peak value of leaf area index (LAI) also occurred at this time. As for maize, ETc averaged 16.7 mm per week during the initial stage, approached a peak value of 48.45 mm per week at the 12th week after sowing, and declined to its minimum of 13.33 rum per week during the late-season stage. The total ETc of spring wheat and maize were 425.7 and 572.5 mm, and average daily ETc of spring wheat and maize were 4.05 and 4.09 mm during the both growth seasons. The five reference ET methods (i.e. FAO-56 Penman-Monteith (56PM), FAO-24 Penman (24Pn), FAO-24 Blaney-Criddle (24BC), FAO-24 Radiation (24Rd) and 1985 Hargreaves (Harg)) were evaluated for their capabilities to predict ET0 using daily weather data. Statistical analysis showed that the FAO-24 Penman and FAO-24 Blaney-Criddle methods may be instead of the FAO-56 Penman-Monteith method in predicting ET0 value in this region. Crop coefficients (K-c) for spring wheat and maize were calculated from the measured ETc data and the predicted ET0 data by the FAO-56 Penman-Monteith method, and their values were 0,55, 1.03, 1.19, and 0.65 during the initial, crop development, mid-season, and late-season stages for spring wheat, respectively, and the corresponding values for maize were 0.50, 1.02, 1.26 and 0.68. (C) 2003 Elsevier Science B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS研究方向 | Agriculture ; Water Resources |
| WOS类目 | Agronomy ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000183247900001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2556900 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, YL |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, YL,Cui, JY,Zhang, TH,et al. Measurement of evapotranspiration of irrigated spring wheat and maize in a semi-arid region of north China[J]. AGRICULTURAL WATER MANAGEMENT,2003,61(1):1-12. |
| APA | Li, YL,Cui, JY,Zhang, TH,&Zhao, HL.(2003).Measurement of evapotranspiration of irrigated spring wheat and maize in a semi-arid region of north China.AGRICULTURAL WATER MANAGEMENT,61(1),1-12. |
| MLA | Li, YL,et al."Measurement of evapotranspiration of irrigated spring wheat and maize in a semi-arid region of north China".AGRICULTURAL WATER MANAGEMENT 61.1(2003):1-12. |
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