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| 不同畦面结构下畦灌过程和效果评估 | |
| 引用本文： | 陈博,欧阳竹,章少辉.不同畦面结构下畦灌过程和效果评估[J].资源与生态学报（英文版）,2012,3(2):151-160. |
| 作者姓名： | 陈博 欧阳竹 章少辉 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所 生态系统网络观测与模拟重点实验室,北京100101;中国科学院研究生院,北京100049 2. 中国科学院地理科学与资源研究所 生态系统网络观测与模拟重点实验室,北京,100101 3. 中国水利水电科学研究院水利研究所,北京,100048 |
| 基金项目： | Foundation： the Knowledge Innovation Program, Chinese Academy of Sciences （No. KSCX2-EW-B-1 and KSCX1-YW-09-06）. |
| 摘 要： | 在畦灌过程中,畦田地形或微地形条件对灌溉效果影响很大.保护性耕作技术在华北平原的大面积推广改变了畦田地表结构状态.本研究提出畦面结构这一概念,并深入分析了三种畦面结构下的畦灌:平作畦灌(BSI),微垄沟灌(BFI),细沟灌(RI)；田间试验和WinSRFR3.1模型相结合评估了不同畦面结构对畦灌水流过程和效果的影响,探索畦面结构对畦灌的影响机制.结果表明,WinSRFR3.1模型可以用来模拟微垄沟灌和细沟灌,平作畦灌、微垄沟灌和细沟灌的水流过程和灌溉效果各不相同.平作畦灌入渗速率最快而微垄沟灌入渗速率最慢；平作畦灌田面水流推进最慢而微垄沟灌田面水流推进最快；这两个过程综合作用导致平作畦灌灌溉效果最差而微垄沟灌灌溉效果最佳.不同畦面结构是灌溉效果差异的主要原因.畦面结构是畦灌系统中影响畦灌效果的重要因子. |
| 关 键 词： | 畦面结构 畦灌 水流过程 灌溉效果 模型模拟 |
| 收稿时间： | 2012-03-30 |
Evaluation of Hydraulic Process and Performance of Border Irrigation with Different Regular Bottom Configurations |
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| CHEN BO , OUYANG Zhu , ZHANG Shaohui.Evaluation of Hydraulic Process and Performance of Border Irrigation with Different Regular Bottom Configurations[J].Journal of Resources and Ecology,2012,3(2):151-160. | |
| Authors: | CHEN BO OUYANG Zhu ZHANG Shaohui |
| Institution: | 1.Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China;3.Department of Irrigation and Drainage, China Institute of Water Resources and Hydropower Research, Beijing 100048, China |
| Abstract: | Field topography or microtopography plays an important role in achieving acceptable performance in border irrigation. Extension of conservation tillage across the North China Plain has resulted in change in field bottom configuration. This study defined regular bottom configuration for border irrigation, and introduced three regular bottom configurations： border-strip irrigation （BSI）, border-furrow irrigation （BFI） and rill irrigation （RI）. The effects of regular bottom configuration on the hydraulic process and irrigation performance were evaluated by field experiments and a WinSRFR3.1 model. Results suggest that the WinSRFR3.1 model was capable of the simulation of BFI and RI, and that the hydraulic process and irrigation performance were diverse among BSI, BFI, and RI. BSI had the highest infiltration rate while BFI had the lowest infiltration rate; BSI took the most time to complete the water advance while BFI took the least time. As a result, BSI showed the worst irrigation performance while BFI gave the best irrigation performance. Different field bottom configurations mainly accounted for differences. We conclude that regular field bottom configuration is an important factor for acceptable performance in border irrigation. |
| Keywords: | regular bottom configuration border irrigation hydraulic process irrigation performance simulation |
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