| 引用本文: | 梁永辉,王振华,宋利兵,等.基于CERES-Maize模型对新疆滴灌玉米灌溉制度的优化[J].灌溉排水学报,0,():-. |
| Liang Yonghui,Wang Zhenhua,Song Libing,et al.基于CERES-Maize模型对新疆滴灌玉米灌溉制度的优化[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】研究新疆膜下滴灌玉米的灌溉制度和需水规律，为新疆玉米节水增产提供科学指导。【方法】基于2020年4个不同灌水水平下的玉米生长发育及产量数据，对DSSAT-CERES-Maize模型进行参数率定和验证，评价模型在新疆地区的适用性；利用1979―2017年气象数据，通过对典型年型分别设置14种不同的灌溉方案，探究新疆膜下滴灌玉米的最优灌溉制度。【结果】利用玉米的叶面积指数、干物质量、产量的观测值对CERES-Maize模型进行参数率定和验证。叶面积指数、干物质量、产量等的模拟值和实测值都表现出了很好的一致性，模拟效果很好。通过模型模拟分析，不同年型玉米关键需水期对缺水的敏感程度大小为：抽雄期>拔节期>灌浆期。综合考虑产量和水分利用效率，枯水年、平水年、丰水年玉米抽雄期灌溉量分别为180、180、120 mm，灌浆期均灌溉120 mm，其余各生育期灌溉量都为60 mm时达到最优。优化后灌溉制度对应的产量分别在枯水年、平水年、丰水年占对应最高产量的99.53%、97.51%、98.45%。【结论】CERES-Maize模型总体上可以应用于新疆地区滴灌玉米的研究，利用模型优化后的灌溉制度能够为新疆滴灌玉米的种植提供一定的参考依据。 |
| 关键词: 滴灌玉米；CERES-Maize模型；灌溉制度；产量；水分利用效率 |
| DOI： |
| 分类号:S275.6 |
| 基金项目:兵团重大科技项目；新疆水专项；兵团重点领域创新团队项目；新疆维吾尔自治区科学技术协会科技咨询项目 |
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| Optimization of drip irrigation schedule for maize in xinjiang based on CERES-Maize model |
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Liang Yonghui, Wang Zhenhua, Song Libing, Zhu Yan, Meng Yu, Ma Zhanli
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Shihezi University
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| Abstract: |
| 【Objective】We aimed to study the irrigation schedule and water demand regularity of maize under mulched drip irrigation, and to provide scientific guidance for achieving water saving and yield increasing of maize in Xinjiang.【Method】Based on the growth and yield data of maize under four different irrigation levels in 2020, the DSSAT-CERES-Maize model was calibrated and verified to evaluate the applicability of the model in Xinjiang. According to meteorological data from 1979 to 2017, we set up 14 different irrigation schemes in typical years, and explored the optimal irrigation schedule of maize under mulched drip irrigation in Xinjiang.【Result】The CERES-Maize model was calibrated and verified using the observed values of leaf area index, dry matter weight, and yield of maize under four different irrigation levels. The simulations and measured values showed good consistency for leaf area index, dry matter weight, and yield. The simulation performance was great. Through model simulation analysis, the sensitivity of key water demand periods for maize to water shortage in different meteorological years was as follows: tasseling period>jointing period>filling period. Comprehensively considering the yield and water use efficiency, the irrigation amount for maize in tasseling period were 180 mm, 180 mm, and 120 mm in dry years, normal years, and wet years, respectively. The irrigation amount was 120 mm in the filling period, and the irrigation amount was 60 mm during the other growth periods. The yield under the optimized irrigation schedule accounted for 99.53%, 97.51%, and 98.45% relating to the highest yield in dry years, normal years, and wet years, respectively.【Conclusion】The CERES-Maize model can be applied to the research of drip irrigation maize in Xinjiang. The optimized irrigation schedule by the model can provide some reference for the cultivation of drip irrigation maize in Xinjiang. |
| Key words: drip irrigation maize; CERES-Maize model; irrigation schedule; yield; water use efficiency |
