| 引用本文: | 王晓东,岳伟,陈金华,等.安徽沿江江南地区油菜渍害胁迫条件下AquaCrop模型验证*[J].灌溉排水学报,2020,(12):-. |
| Xiaodong Wang,Wei Yue,Jinhua Chen,et al.安徽沿江江南地区油菜渍害胁迫条件下AquaCrop模型验证*[J].灌溉排水学报,2020,(12):-. |
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| 摘要: |
| 为评估AquaCrop模型在安徽沿江江南地区模拟油菜生长的适用性,探讨其在农业气象业务服务应用中的可行性，本研究基于作物、气象、土壤等数据以及2010-2013年油菜大田涝渍试验资料对AquaCrop模型参数进行本地化订正及模拟效果检验，并利用油菜观测点的历年产量数据开展了模型在安徽沿江江南地区的适用性验证。基于本地化参数订正的AquaCrop模型模拟结果显示，油菜生物量和产量的实测值和模拟值平均绝对误差分别为328.1kg/hm2和101.9kg/hm2，平均相对误差6.3%和6.8%，模型性能指数0.89和0.91，总体上模型能较好模拟油菜花期遭受阴雨寡照天气条件下的油菜生物量和产量；另外AquaCrop模型在安徽沿江江南地区的适用性验证显示宣城油菜观测站多年油菜产量模拟相对误差为5.2%~8.1%，模拟的总体效果较好，池州、东至和歙县等其它3个沿江江南油菜观测站产量模拟相对误差为6.8%～11.2%，虽然部分样本的模拟相对误差超过10%，存在一定程度的偏差，但总体上AquaCrop模型在模拟我省沿江江南地区油菜产量方面具有一定的参考价值，提升了我省油菜产量预测业务应用的支撑能力。 |
| 关键词: AquaCrop模型；安徽油菜；渍害胁迫；产量预测 |
| DOI： |
| 分类号:S3??? |
| 基金项目:安徽省科技攻关项目(1804a07020124)；安徽省气象局科技发展(KM201807) |
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| Rape growth simulation in Anhui Yanjing and Jiangnan region based on AquaCrop model |
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Xiaodong Wang1, Wei Yue1, Jinhua Chen1, Xiaoyi Chen2
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1.Anhui Agricultural Meteorological Center;2.Anhui Meteorological Institute
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| Abstract: |
| In order to evaluate applicability of AquaCrop model on simulating rape growth in Anhui Yanjiang and Jiangnan region, and discuss the application feasibility of the model on agrometeorological business service, in this study we firstly based on the local data(basic parameters of rape, temperature and other meteorological data, soil physical characteristic parameters) and measured rape field observation waterlogged experiment data of 2010-2013 to improve the AquaCrop model parameters with localized correction and test simulation effects, also carried out suitability verifying on historical yield data of rape observation sites in Anhui Yanjiang and Jiangnan region. based on the localized parameters correction AquaCrop model, the simulation results showed that the average absolute error of rape biomass and yield between the actual measured and simulated values is 328.1 kg/hm2 and 101.9 kg/hm2 respectively, the average relative error is 6.3% and 6.8%, the model performance index is 0.89 and 0.91, on the whole the AquaCrop model can better simulate rape biomass and yield on the continuous rain and less sunlight condition during rape flowering stage. In addition suitability verification of AquaCrop model in Anhui Yanjiang and Jiangnan region show that relative error of rape yield simulation is 5.2%-8.1% at Xuancheng rape observation site, as a whole the simulation effect is better, relative error of rape yield simulation is 6.8%～11.2% at another three rape observation site in Anhui Yanjiang and Jiangnan region such as Chizhou, Dongzhi and Shexian, although relative error of partial simulation sample exceed 10%, exist a certain extent deviation, as a whole AquaCrop model on simulating rape yield have a certain reference value in Anhui Yanjiang and Jiangnan region, also promote supportive capabilities of rape yield forecast business application.Now we haven’t see related research reports on simulating rape yield of AquaCrop model at home and abroad, first applicated the growth of crop water model-AquaCrop on rape growth simulation in Anhui Yanjiang and Jiangnan region, the result showed that it had a certain simulation accuracy on rape biomass and yield, and most of the simulation error is under 10%, the error is in a reasonable range. so the AquaCrop model have a very good reference value on agricultural meteorological business service in Anhui province. In addition, we used AquaCrop model simulating the soil volumetric moisture, the results showed that the average
absolute error of soil volumetric moisture content between the actual measured and simulated values is very little. |
| Key words: AquaCrop model; Anhui rape; Waterlogging stress; yield prediction |
