| 李 池， 陈 刚， 梁国成， 杨继革， 曹 伟， 赵经华， 马明杰.基于熵权-TOPSIS的滴灌春玉米灌水定额研究Journal of Water Resources and Water Engineering[J].,2023,34(2):216-224 |
| 基于熵权-TOPSIS的滴灌春玉米灌水定额研究 |
| Irrigation quota of drip-irrigated spring maize based on entropy weight-TOPSIS |
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| DOI：10.11705/j.issn.1672-643X.2023.02.28 |
| 中文关键词: 滴灌 玉米灌水定额 熵权-TOPSIS 综合评价 |
| 英文关键词: drip irrigation irrigation quota of corn entropy weight-TOPSIS comprehensive evaluation |
| 基金项目:新疆维吾尔自治区十四五重大专项项目（2020A01003-4） |
| Author Name | Affiliation | | LI Chi1,2, CHEN Gang3, LIANG Guocheng4, YANG Jige3, CAO Wei1,2, ZHAO Jinghua1,2, MA Mingjie1,2 | （1.新疆农业大学 水利与土木工程学院， 新疆 乌鲁木齐 830052； 2.新疆水利工程安全与水灾害防治重点实验室， 新疆 乌鲁木齐 830052； 3.克拉玛依绿成农业开发有限责任公司， 新疆 克拉玛依 834000；4.乌鲁木齐经济技术开发区(头屯河区)建设局， 新疆 乌鲁木齐 830026） |
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| 中文摘要: |
| 为准确得到适宜于北疆地区滴灌春玉米的灌水定额，设置了W1(225 m3/hm2)、W2 (300 m3/hm2)、W3 (375 m3/hm2)、W4 (450 m3/hm2)、W5 (525 m3/hm2)、W6 (600 m3/hm2) 6个水平的灌水定额，研究灌水定额对春玉米生长发育和产量的影响。选取部分生长指标、产量指标、节水指标作为评价指标，结合耗水规律和指标显著性进行分析，并采用熵权-TOPSIS综合评价法，优选适宜于北疆地区滴灌春玉米的灌水定额。结果表明：滴灌春玉米的关键生育期为抽雄散粉期，该生育期最优灌水定额为525 m3/hm2；耗水量和耗水强度的增长速率在灌水定额大于525 m3/hm2后明显下降；通过各指标显著性分析得出，灌水定额为450~525 m3/hm2时，较适宜北疆春玉米的生长；熵权-TOPSIS综合评价结果显示，灌水定额为525 m3/hm2时，贴近度最高，评价结果最好，此时玉米产量为16 178.71 kg/hm2。综上所述，北疆滴灌春玉米的最优灌水定额为525 m3/hm2。 |
| 英文摘要: |
| In order to obtain an accurate irrigation quota suitable for drip-irrigated spring maize in the northern Xinjiang, six levels of irrigation quotas of W1 (225 m3/hm2), W2 (300 m3/hm2), W3 (375 m3/hm2), W4 (450 m3/hm2), W5 (525 m3/hm2) and W6 (600 m3/hm2) were set to study the effect of irrigation quotas on growth and yield of spring maize. Some growth, yield and water-saving indices were selected as evaluation indices to analyze the law of water consumption and significance of different indices, then the entropy weight-TOPSIS comprehensive evaluation method was used to optimize the irrigation quota suitable for drip-irrigated spring maize in the northern Xinjiang. The results show that the key fertility period for drip-irrigated spring maize is the tasseling pollen period, and the optimal irrigation quota for this period is 525 m3/hm2; the growth rate of water consumption and intensity of water consumption decreases significantly after the irrigation quota reaches 525 m3/hm2. According to the significance analysis of each index, the irrigation quota of 450-525 m3/hm2 is more suitable for the growth of spring maize in the northern Xinjiang. The results of the comprehensive entropy weighted-TOPSIS evaluation show that the highest closeness and the best evaluation results can be achieved when the irrigation quota is 525 m3/hm2, at which time the maize yield is about 16, 178.71 kg/hm2. Therefore, we recommend 525 m3/hm2 as the optimal irrigation quota for drip-irrigated spring maize in the northern Xinjiang. |
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