| 引用本文: | 王宏飞,李彦彬,柳腾飞,等.基于CRITIC-TOPSIS综合评价法优化温室作物灌溉策略[J].灌溉排水学报,2023,42(2):52-59. |
| WANG Hongfei,LI Yanbin,LIU Tengfei,et al.基于CRITIC-TOPSIS综合评价法优化温室作物灌溉策略[J].灌溉排水学报,2023,42(2):52-59. |
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| 摘要: |
| 【目的】探讨基于蒸发皿水面蒸发量（Ep）的温室黄瓜和甜瓜最优灌溉策略。【方法】以直径20 cm标准蒸发皿的累计水面蒸发量为灌水依据，开展温室滴灌黄瓜和甜瓜灌溉试验，每种作物设置4种灌水量：0.5Ep、0.7Ep、0.9Ep和1.1Ep。系统研究了不同灌水量对果实形态指标、品质指标、产量和水分利用效率（WUE）等指标的影响，并基于CRITIC-TOPSIS综合评价方法确定了2种作物的灌溉策略。【结果】果实形态方面，温室黄瓜灌水量为0.7Ep和0.9Ep时各项形态指标显著优于其他处理，且0.7Ep的单果质量和平均果径略高于0.9Ep，但单株果数和平均果长相反；灌水量为0.9Ep时对温室甜瓜各项形态指标比较有利。果实品质方面，温室黄瓜可溶性固形物（TSS）、维生素C（Vc）、可溶性糖（SSC）和可溶性蛋白质（SPC）均随着灌水量的增加而降低，而甜瓜的最大Vc、SSC和SPC均为0.7Ep处理，最大TSS出现在0.5Ep处理。温室黄瓜最大产量为96.1 t/hm2（0.9Ep），但WUE和灌溉水利用效率（IWUE）较最大值（0.5Ep）降低了17.9%和32.2%；温室甜瓜灌水量为0.9Ep和1.1Ep时，产量无显著性差异，但0.9Ep的WUE和IWUE较1.1Ep显著高9.2%和16.3%。【结论】利用CRITIC-TOPSIS综合评价法确定了黄瓜和甜瓜灌溉策略，黄瓜灌水量为0.9Ep，甜瓜灌水量为0.7Ep时，可实现果实形态、产量、品质和水分利用效率的最优化。 |
| 关键词: CRITIC-TOPSIS综合评价法；果实形态；产量；品质；水分利用效率 |
| DOI：10.13522/j.cnki.ggps.2022600 |
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| Optimizing Irrigation Scheduling for Greenhouse Crops Using the CRITIC-TOPSIS Framework |
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WANG Hongfei, LI Yanbin, LIU Tengfei, DING Jiale, GONG Xuewen
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School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
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| Abstract: |
| 【Objective】Greenhouse agriculture relies on irrigation and optimizing irrigation to balance crop yield and quality is critical to maximizing its profitability. Taking cucumber and melon as an example, we propose to optimize the irrigation based on evaporation measured from standard 20 cm evaporation pan (Ep) and other factors.【Method】The experiment is carried out in a drip-irrigated greenhouse. It compares four irrigation treatments with the irrigation amount setting at 50 (I5), 70 (I7), 90 (I9) and 110% (I11) of Ep respectively. In each treatment, we analyze the changes in morphological and quality indexes of the fruits, as well as yield and water use efficiency (WUE). The optimal irrigation for each crop is determined using the CRITIC-TOPSIS framework.【Results】 ①I7 and I9 increase the weight and diameter of the cucumber significantly compared with other treatments, but at the expense of fruit numbers and fruit length. For the melon, I9 is optimal for improving morphological traits of the fruits. ②Increasing irrigation amount reduces the total soluble solids (TSS), vitamin C (Vc), soluble sugars content (SSC) and soluble proteins content (SPC) in the cucumbers. For the melon, its Vc, SSC and SPC peakes in I7, and TSS maximizes in I5. ③The maximum cucumber yield is 96.1 t/hm2, achieved in I9, with its WUE and irrigation water use efficiency (IWUE) being 17.9% and 32.2% respectively less than those in I5. There is no significant difference in melon yield between I9 and I11, but the WUE and IWUE of the former are 9.2% and 16.3% higher than those in the latter.【Conclusion】Comprehensive evaluation using 11 indicators for the cucumber and 10 for the melon shows that the optimal irrigation for the greenhouse cucumber and melon is to irrigate 90% and 70% of water evaporated from the 20 cm standard evaporation pan installed in the greenhouse, respectively. |
| Key words: CRITIC-TOPSIS comprehensive evaluation method; fruit morphology; yield; quality; water use efficiency |
