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溫室小型西瓜調(diào)虧灌溉綜合效益評(píng)價(jià)模型
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國(guó)家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)資助項(xiàng)目(2006AA100202)和蘭州理工大學(xué)博士基金資助項(xiàng)目(0906ZXC121)


Fuzzy Evaluation to Integration Benefit of Regulated Deficit Irrigation of Mini-watermelon Based on Information Entropy
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    摘要:

    應(yīng)用多層次多目標(biāo)模糊理論與方法,建立調(diào)虧灌溉綜合效益多層次多目標(biāo)模糊評(píng)價(jià)模型;利用信息熵理論求得各層評(píng)價(jià)指標(biāo)客觀熵權(quán),結(jié)合專(zhuān)家法的主觀權(quán)重獲得模型各層評(píng)價(jià)指標(biāo)綜合權(quán)重,并運(yùn)用該模型對(duì)2007年秋季溫室小型西瓜不同虧水處理的綜合效益進(jìn)行評(píng)價(jià),結(jié)果表明,在西瓜果實(shí)膨大期進(jìn)行水分虧缺處理可以一定程度上提高果實(shí)的品質(zhì),但重度和中度的水分虧缺會(huì)降低果實(shí)產(chǎn)量,在果實(shí)成熟期采用一定程度的水分虧缺對(duì)果實(shí)品質(zhì)和產(chǎn)量影響不大,在苗期、開(kāi)花坐果期、果實(shí)膨大期和果實(shí)成熟期分別采用0.75 Ep 、0.75 Ep 、1.25 Ep和1.00 Ep的灌溉標(biāo)準(zhǔn)可以獲得較為理想的調(diào)虧灌溉綜合效益。

    Abstract:

    The multi-hierarchy and multi-objective fuzzy theory was applied to establish a multi-hierarchy and multi-objective fuzzy evaluation model of regulated deficit irrigation comprehensive benefits. Using the information entropy theory, the impersonality weights of all hierarchy evaluation indexes were obtained, and the subjective weights given by experts to attain the comprehensive weights for the method of multi- hierarchy evaluation indexes were combined, the reliability of the model evaluation results was improved.At the same time, the model was used to evaluate and order the comprehensive benefits of regulate deficit irrigation integration benefits of mini-watermelon with different water deficit treatments in autumn of 2007. The results indicate that the water deficit can improve fruit quality, but the serious water deficit and moderate water deficit would decrease yield in fruit spreading growth stage. The water deficit has little influence on yield and quality of fruit in fruit maturing stage. During the seeding stage, blossoming and bearing fruits stage, fruit spreading growth stage and fruit maturing stage, the irrigation standard of 0.75 Ep , 0.75 Ep , 1.25 Ep and 1.00 Ep was adopted respectively, and could get the perfect comprehensive benefits of regulate deficit irrigation integration benefits.

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鄭健,蔡煥杰,王健,王燕.溫室小型西瓜調(diào)虧灌溉綜合效益評(píng)價(jià)模型[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(7):124-129. Zheng Jian, Cai Huanjie, Wang Jian,Wang Yan. Fuzzy Evaluation to Integration Benefit of Regulated Deficit Irrigation of Mini-watermelon Based on Information Entropy[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(7):124-129.

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