| 胡利平,裴古娥,姚延锋,安晶,刘晓强.天水苹果发育模拟模型研究[J].干旱地区农业研究,2010,28(1):237~242 |
| 天水苹果发育模拟模型研究 |
| Simulation of the development of apple in Tianshui |
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| DOI：10.7606/j.issn.1000-7601.2010.01.43 |
| 中文关键词: 天水 苹果 发育阶段 模拟模型 |
| 英文关键词:Tianshui apple physiological development time simulation model |
| 基金项目:科技部科研院所社会公益研究项目“西北地区旱作农业对气候变暖的响应特征及其预警和应对技术研究”（GYHY20080621） |
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| 中文摘要: |
| 以苹果的发育生理生态过程为基础，以生理发育时间为尺度，利用天水河谷区麦积试验点的数据，建立了苹果发育模拟模型，并用渭北区秦安和关山区清水点观测数据对模型进行了检验。结果表明，模型能较好地预测各个发育阶段（叶芽膨大期、叶芽开放期、展叶盛期、开花盛期、果实成熟期、叶变色始期）的出现时间和持续日数。模型对苹果各个生育时期的绝对预测误差一般小于7 d，模拟值与观测值的回归估计标准误差（RMSE）在到达叶芽开放期、展叶盛期、开花盛期、果实成熟期、叶变色始期等生育时期时分别为2.4、0.9、2.7、4.0、4.0 d; 各个发育阶段持续天数的预测误差分别为2.4、2.0、2.3、4.0、3.4 d。 |
| 英文摘要: |
| Using experimental data in Maiji area of Tianshui in the valley of Weihe River，a simulation model for apple development was developed based on the concept of physiological development time (PDT) and the photo-thermal reactions of apple in Tianshui. The model was validated by independent experimental data from Qin'an of the north of Wei River and Qingshui of the area of Guanshan Mountains. The results showed that the model could predict better the time of emergence and the sustained number of days of various developmental stages simulated results agreed well with the measured ones. The absolute forecast error of the model is typically less than 7 days in the various development stages of apple, the root mean squared error(RMSE) of simulated and observed values is respectively 2.4, 0.9, 2.7, 4.0, 4.0 days when apple reaches leaf bud open, unfolds leaf peak, flowering peak, fruit mature period and leaf starts to change color development period, the forecast error of sustained the number of days in various development stages is respectively 2.4, 2.0, 2.3, 4.0, 3.4 days. |
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