小麦生长模拟模型_WheatGrow_适应性评价.pdfVIP

　2010, 30(3):443-448 Journal of Triticeae Crops 小麦生长模拟模型(WheatGrow)的适应性评价 ＊ 赵扬辉, 汤亮, 曹卫星, 朱 艳 (, , 210095) 　:为对小麦生长模拟模型(WheatGrow)的稳定性和适应性进行测试与评价, 基于IoA (一致性系数)、 MA (绝对平 误差)和 NRMS (标准根 方差)等指标, 利用不同地点、年份、品种、氮素及播期的小麦田间试验 资料对模型进行校正和检验。 结果表明, WheatGrow 模型对小麦生育期模拟值与实测值的误差为0 ～ 9 d, 在南京、 徐州、泰安和保定地区对叶面积指数、地上部干物重和产量的模拟值与实测值比较的 NRMS 平 值分别为 12.56%～ 20.78%、11.37%～ 20.85%和2.37%～ 6.99%, 说明模型对各生态点具有较好的模拟效果, 能较好地应 用于区域适应性验证的研究。 :小麦;WheatGrow 模型;适应性;评价 :S512.1;S318　　　　:A 　　　　:1009-1041(2010)03-0443-06 Adaptability Evaluation of a Wheat Growth Model (WheatGrow) ZHAO Yang-hui, TANGLiang, CAO Wei- ing, ZHU Yan (Jiangsu Key Laboratory for Information Agriculture, Nanjing Agriculture University, Nanjing, Jiang su 210095, China) Abstract:The objective of this study was to test and evaluate the stability and applicability of the model u- sing the datasets involved various conditions based on WheatGrow model.WheatGrow model was calibra- ted and validated by datasets from different ecological sites, years, cultivars and treatments using statistics methods, i.e., IoA, MA , NRMS , etc.The results showed that the errors between simulated and ob- served main development stage were 0-9 days, the mean NRMS between simulated and observed LAI, dry matter weight and yield were 12.56% ～ 27.37%, 11.37% ～ 28.43% and 2.37 ～ 6.99% in Nanjing, Xuzhou, Tai′an, and Baoding, respectively, which indicated that WheatGrow had a good predictability on various sites and would lay a foundation for wheat productivity and its early warning . Key words:Wheat;Model of WheatGrow ;Adaptability;valuation 　　 , , , -- [ 1] 。 , 、, 。 WheatGrow : [ 2-6] 。 , , (PDT )