SMCR_N模型在北京地区潮土茄田适用性分析

doi:10.3969/j.issn.1673-503X.2016.04.014

气象与环境学报 ›› 2016, Vol. 32 ›› Issue (4): 106-112.doi: 10.3969/j.issn.1673-503X.2016.04.014

SMCR_N模型在北京地区潮土茄田适用性分析

董一威^1,2, 李玉中¹, 张科峰³, 徐春英¹, 李巧珍¹, 房福力¹, 郭智成¹

1. 中国农业科学院农业环境与可持续发展研究所农业部旱作节水农业重点开放实验室, 北京 100081;
2. 中国农业科学院研究生院, 北京 100081;
3. 英国华威大学国际植物研究所, 西米德兰兹考文垂 CV35 9EF

收稿日期:2015-05-28 修回日期:2015-09-01 出版日期:2016-08-30 发布日期:2016-08-30
通讯作者: 李玉中,E-mail:liyuzhong@caas.cn。 E-mail:liyuzhong@caas.cn
作者简介:董一威,男,1982年生,助理研究员,主要从事农业水环境与水生产力研究,E-mail:dongyiwei@caas.cn。
基金资助:
国家自然科学基金（41301553，41473004）和中央级公益性科研院所基本科研业务费专项资金（BSRF201304）共同资助。

Applicability analysis of SMCR_N model for eggplant growing in alluvial region of Beijing

DONG Yi-wei^1,2, LI Yu-zhong¹, ZHANG Ke-feng³, XU Chun-ying¹, LI Qiao-zhen¹, FANG Fu-li¹, GUO Zhi-cheng¹

1. Key Laboratory of Dry-Land Agriculture, Ministry of Agriculture in China, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
2. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China;
3. Warwick HRI, University of Warwick, West Midlands Coventry CV35 9EF, UK

Received:2015-05-28 Revised:2015-09-01 Online:2016-08-30 Published:2016-08-30

摘要/Abstract

摘要： 利用2009-2010年北京地区潮土茄田定位试验资料和气象、土壤及栽培管理措施等资料，采用SMCR_N蔬菜作物模型对北京地区潮土紫长茄和圆茄产量及圆茄吸氮量进行了模拟，校正模型参数并对模型进行了初步评价，为模型本地化提供参考。结果表明：SMCR_N模型中茄子品种参数适用于模拟北京地区潮土紫长茄产量，其模拟总干重的均方根差（RMSE）为0.42 t·hm^-2，标准化均方根差（n-RMSE）为0.06，模型预测效率（EF）为0.95，E=0.40>0.00，拟合指数（d）为0.99，决定系数（R²）=0.96。定位试验的圆茄品种与SMCR_N模型茄子品种参数存在差异，需调整相关茄子品种参数值。作物总干重敏感性分析表明，作物生长系数（K₁）为SMCR_N模型敏感性参数，当K₁=1.4 t·hm^-2时，模型模拟性能最好，RMSE=1.2 t·hm^-2，n-RMSE=0.12，EF=0.59，E=0.76，d=0.93，R²=0.80。参数校正后，对2010年北京地区潮土圆茄的吸氮量进行了模拟，R²=0.85，模拟性能良好。通过校准作物参数，SMCR_N模型可较准确地模拟北京地区潮土露地茄子总干重和吸氮量的动态变化，适用性较强，可用于指导北京地区潮土茄田的施氮水平，为合理施肥提供科学依据。

关键词: SMCR_N模型, 潮土地区, 茄田, 适用性, 敏感性

Abstract: To provide a reference for regional application of SMCR_N (Simulation Model for Crop Response to Nitrogen fertilizer) model in alluvial region of Beijing,it has been used to simulate the yields of purple long- and round-eggplants as well as the amount of N uptake by round-eggplants using the location experiment,meteorological and cultivating management data in the eggplant field with alluvial soil in Beijing from 2009 to 2010.The parameters of the model were calibrated using data from this experiment.The performance of the model was evaluated with experimental data as well.The results show that the original eggplant parameters in SMCR_N model can be directly applied to simulate the yield of purple long-eggplants growing in alluvial region of Beijing.The simulating results indicate that RMSE (Root Mean Square Error),n-RMSE(normalized Root Mean Square Error),EF (model prediction Efficiency),E,d (fitting index),and R² (determination coefficient) are 0.42 t·hm^-2,0.06 t·hm^-2,0.95,0.40,0.99,0.96,respectively.The cultivar of round-eggplant used in the location experiment is different from that in SMCR_N model.So,the corresponding parameters in SMCR_N model need to be adjusted.The sensitivity analyses show that simulation results are sensitive to crop growth parameter (K₁).When K₁ is adjusted to 1.4,the simulating result of dry weight is more accurate,with RMSE,n-RMSE,EF,E,d,R² of 1.2 t·hm^-2,0.12 t·hm^-2,0.59,0.76,0.93,0.80,respectively.After calibrating model parameters,the SMCR_N model can be also used to simulate the N uptake by round-eggplants.The simulating results are satisfactory,with R² of 0.85.In conclusion,the variations of total dry weight and N uptake by eggplants in alluvial region of Beijing can be well simulated through calibrating the parameters in SMCR_N model.The SMCR_N model can be applied to guide a reasonable fertilization for eggplant fields in alluvial region of Beijing.

Key words: SMCR_N model, Alluvial region, Eggplant field, Applicability, Sensitivity

中图分类号:

Q141/S641.1

董一威, 李玉中, 张科峰, 徐春英, 李巧珍, 房福力, 郭智成. SMCR_N模型在北京地区潮土茄田适用性分析[J]. 气象与环境学报, 2016, 32(4): 106-112.

DONG Yi-wei, LI Yu-zhong, ZHANG Ke-feng, XU Chun-ying, LI Qiao-zhen, FANG Fu-li, GUO Zhi-cheng. Applicability analysis of SMCR_N model for eggplant growing in alluvial region of Beijing[J]. Journal of Meteorology and Environment, 2016, 32(4): 106-112.

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SMCR_N模型在北京地区潮土茄田适用性分析

Applicability analysis of SMCR_N model for eggplant growing in alluvial region of Beijing

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