| 刘钰,蔡甲冰,蔡林根,L.S.Pereira.黄河下游灌区农田灌溉制度与供需平衡分析[J].水利学报,2005,36(6):0701-0708 |
| 黄河下游灌区农田灌溉制度与供需平衡分析 |
| Analyses of irrigation scheduling and water balance for irrigation district in lower reaches of Yellow River |
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| DOI： |
| 中文关键词: 灌溉制度 供需平衡 充分灌溉 非充分灌溉 改进方案 |
| 英文关键词: irrigation scheduling water balance full irrigation deficit irrigation improved irrigation techniques deficit irrigation |
| 基金项目: |
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| 摘要点击次数: 3691 |
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| 中文摘要: |
| 在簸箕李引黄灌区上游和下游选择典型试验区，开展了连续两年的冬小麦-夏玉米连作种植模式下的田间试验观测，用模拟灌溉制度的计算机模型ISAREG对各试验处理进行模拟，验证了模型的模拟精度。依据模拟结果对现行灌溉制度进行了评价。模拟对比了灌区内3个县4个不同干旱程度典型年气候条件下10种主要作物的两种灌溉制度方案，包括充分灌溉和部分非充分灌溉方案，计算了不同方案的田间灌溉需水过程，分析了不同方案下灌区水资源供需平衡状况。研究表明，簸箕李灌区只有采用改进的田间灌水技术和有控制的非充分灌溉制度，才能使灌区供水和需水在平水年基本达到平衡。 |
| 英文摘要: |
| Two typical experimental areas located at the upstream and downstream of the Bojili Irrigation District are selected to investigate the optimal scheduling for balancing the supply and demand of irrigation water. Field observations were conducted for winter wheat and summer maize in two consecutive years. Observation data were used to verify the validity of the ISAREG model, which is an irrigation-scheduling model based on soil water balance. On this basis, the model was applied to evaluate the current irrigation scheduling. The simulation results of two irrigation-scheduling strategies for 10 kinds of crops in four typical years with different probabilities in three counties were analyzed. It is found that the water balance could be achieved if the improved irrigation techniques and controlled deficit irrigation were adopted. |
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