Water requirements and irrigation scheduling of spring maize using GIS and CropWat mode in Beijing-Tianjin-Hebei region
文献类型：SCI/SSCI论文
| 作者 | Feng Z. M. ; Liu D. W. ; Zhang Y. H. |
| 发表日期 | 2007 |
| 关键词 | spring maize climatic water deficit irrigation schedule |
| 英文摘要 | Due to the over use of available water resources, it has become very important to define appropriate strategies for planning and management of irrigated, farmland. In this paper, Beijing-Tianjin-Hebei (Jing-Jin-Ji) region was chosen as the case study area for its special political and economic status and its severe water problem. To achieve effective planning, the information about crop water requirements, irrigation withdrawals, soil types and climatic conditions were obtained in the study area. In the meantime, a GIS method was adopted, which extends the capabilities of the crop models to a regional level. The main objectives of the study are: 1) to estimate the spatial distribution of the evapotranspiration of spring maize; 2) to estimate climatic water deficit; 3) to estimate the yield reduction of spring maize under different rainfed and irrigated conditions. Based on the water deficit analysis, recommended supplemental irrigation schedule was developed using CropWat model. Compared to the rainfed control, the two or three times of supplemental water irrigated to spring maize at the right time reduced the loss of yield, under different scenarios. |
| 出处 | Chinese Geographical Science |
| 卷 | 17 |
| 期 | 1 |
| 页 | 56-63 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1002-0063 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24031]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Feng Z. M.,Liu D. W.,Zhang Y. H.. Water requirements and irrigation scheduling of spring maize using GIS and CropWat mode in Beijing-Tianjin-Hebei region. 2007. |
入库方式： OAI收割
来源：地理科学与资源研究所
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