首页 > 分享 > 基于熵权

基于熵权

花匠小妙招
2024-10-31 14:08

为了评价痕量灌溉条件下水肥耦合处理对温室草莓产量、品质和水肥利用效率的影响,确定最优灌水施肥量.文中采用基于熵权-模糊层次分析法的综合评价指数为应变量、水肥用量为自变量建立预测模型,分析水肥对草莓的影响并计算痕灌条件下温室草莓最优灌水量和施肥量.结果表明:当灌水下限为60.41%、灌水上限为90%、施肥量为N:721.96 kg/hm2,P2O5:360.98 kg/hm2,K2O:721.96 kg/hm2时综合评价指数最大,此时产量为27 008.69 kg/hm2,灌水利用效率为84.48 kg/m3,化肥利用效率15.60 kg/kg.经优化后的痕量灌溉水肥管理模式增产27.26%,灌水利用效率提高22.27%,化肥利用效率提高26.35%.文中构建的预测模型具有较高的可靠性,提出最优水肥管理模式对于温室草莓生产具有指导意义.

Abstract

A regression model of comprehensive indices evaluating yield, quality and water and fertilizer utilization efficiency of winter strawberry under trace quantity irrigation condition was established in terms of water and fertilizer doses by using fuzzy analytic hierarchy process(FAHP)based on entropy weight method. The water and fertilizer coupling effect on the yield, quality and water and fertilizer utilization efficiency was evaluated, and the optimal doses of water and fertilizer were determined. The results showed that the maximum comprehensive evaluating index was achieved with the following fertilizer doses: 721.96 kg/hm2(N), 360.98 kg/hm2(P2O5)and 721.96 kg/hm2(K2O)with 60.41% lower and 90% upper irrigation water limits. The corresponding yield, utilization efficiency of irrigation water and fertilizer utilization efficiency were 27 008.69 kg/hm2, 84.48 kg/m3 and 15.60 kg/kg, respectively. Compared with conventional drip irrigation mode, the optimized trace water and fertilizer amounts irrigation water and fertilizer management mode can increase the yield by 27.26%, the irrigation water utilization efficiency by 22.27% and the fertilizer utilization efficiency by 26.35%. The prediction model produced in this paper has a high reliability, and the optimized water and fertilizer doses predicted by the model can provide guidance on greenhouse strawberry production in a certain degree.

关键词

熵权 /模糊层次分析法 /痕量灌溉 /草莓 /水肥耦合 /回归拟合预测模型{{custom_keyword}} /

Key words

entropy weight /FAHP /trace irrigation /strawberry /water and fertilizer coupling /regression fitting prediction model{{custom_keyword}} /

邢立文, 崔宁博*, 董娟, 等.

0" m-for-array="{{authorList_cn}}" m-for-val="custom_author" m-for-index="custom_index">0">, {{custom_author.name_cn}}等.

基于熵权-模糊层次分析法的痕灌草莓水肥效应评价[J]. 排灌机械工程学报, 2019, 37(9): 815-821 https://doi.org/10.3969/j.issn.1674-8530.19.0001

XING Li-Wen-, CUI Ning-Bo-*, DONG Juan-, et al.

0" m-for-array="{{authorList_en}}" m-for-val="custom_author" m-for-index="custom_index">0">, {{custom_author.name_en}}et al.

Application of entropy weight based fuzzy analytic hierarchy process in water and fertilizer coupling effect evaluation of winter strawberry under trace quantity irrigation[J]. Journal of Drainage and Irrigation Machinery Engineering, 2019, 37(9): 815-821 https://doi.org/10.3969/j.issn.1674-8530.19.0001

参考文献

[1]李坚.水利建设项目模糊层次综合评价方法[J].四川水利,2013,34(2):48-50.
　　LI Jian. Fuzzy hierarchical comprehensive evaluation method for water conservancy construction projects [J]. Sichuan water conservancy, 2013, 34(2): 48-50.(in Chinese)
[2]杨开宁.模拟酸雨对叶菜类蔬菜影响评价模型研究[D].长春:吉林大学,2011.
[3]唐存士,师庆东.痕量灌溉管埋深对披碱草密度、高度和生物量的影响[J].节水灌溉,2015(10):9-11.
　　TANG Cunshi, SHI Qingdong. The influence of buried depth of trace irrigation pipe on the growth density, height and biomass of Elymus[J]. Water saving irrigation,2015(10): 9-11.(in Chinese)
[4]杨志远,宋健,黄重文,等.痕量灌溉下不同水肥处理对温室黄瓜生长的影响[J].灌溉排水学报.2017,36(1):74-78.
　　YANG Zhiyuan, SONG Jian, HUANG Chongwen, et al. Effects of different trace irrigation systems of integral control of water and fertilization on growth of cucumber in greenhouse[J]. Journal of irrigation and drainage, 2017,36(1): 74-78.(in Chinese)
[5]黄令淼.痕量灌溉下土壤水氮、玉米产量与品质关系及灌溉制度优化研究[D].北京:中国农业大学,2018.
[6]诸钧, 金基石, 杨春祥. 痕量灌溉对温室种植球茎茴香产量、干物质分配和水分利用率的影响[J]. 排灌机械工程学报, 2014, 32(4):338-342.
　　ZHU Jun, JIN Jishi,YANG Chunxiang. Effects of trace quantity irrigation on yield, dry matter portioning and water use efficiency of spherical fennel grown in greenhouse [J]. Journal of drainage and irrigation machinery engineering, 2014, 32(4): 338-342.(in Chinese)
[7]杨彬,赵月芬,陈晏育,等.痕灌带地埋下水力特性[J].排灌机械工程学报,2018,36(12):1317-1322.
　　YANG Bin, ZHAO Yuefen, CHEN Yanyu, et al. Hydraulic performance of subsurface trace drip tape[J]. Journal of drainage and irrigation machinery enginee-ring, 2018, 36(12): 1317-1322.(in Chinese)
[8]王枭,杨培岭,苏艳平.温室番茄对微小流量滴灌埋深与灌水量的响应[J].排灌机械工程学报,2018,36(10):937-942.
　　WANG Mao, YANG Peiling, SU Yanping. Response of greenhouse tomatoes to buried depth and low irrigation limit of small flow drip irrigation[J]. Journal of drainage and irrigation machinery engineering, 2018, 36(10): 937-942.(in Chinese)
[9]崔远来,熊佳.灌溉水利用效率指标研究进展[J].水科学进展,2009,20(4):590-598.
　　CUI Yuanlai, XIONG Jia. Advances in assessment indicators of irrigation water use efficiency [J].Advances in water science, 2009,20(4):590-598.(in Chinese)
[10]张福锁,王激清,张卫峰,等.中国主要粮食作物肥料利用率现状与提高途径[J].土壤学报,2008, 45(5):915-924.
　　ZHANG Fusuo, WANG Jiqing, ZHANG Weifeng, et al. Nutrient use efficiencies of major cereal crops in china and measures for improvement[J]. Acta pedologica snica,2008,45(5):915-924.(in Chinese)
[11]李磊,贾磊,赵晓雪,等.层次分析—熵值定权法在城市水环境承载力评价中的应用[J].长江流域资源与环境,2014,23(4):456-460.
　　LI Lei, JIA Lei, ZHAO Xiaoxue, et al. Application of the AHP-entropy weighting method in evaluation on urban water environmental carrying capacity [J]. Resources and environment in the yangtze basin, 2014,23(4): 456-460.(in Chinese)