欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 1999, Vol. 10 ›› Issue (6): 679-682.

• 研究论文 • 上一篇    下一篇

作物生长模拟模型参数校正与有效化的理论和实践

邱建军1, 肖荧南2, 辛德惠2, 胡锡宁3   

  1. 1. 中国农业科学院资源区划研究所, 北京100081;
    2. 中国农业大学生态环境系, 北京100094;
    3. 新疆农垦科学院棉花研究所, 石河子832000
  • 收稿日期:1998-01-05 修回日期:1998-05-20 出版日期:1999-11-25 发布日期:1999-11-25
  • 通讯作者: 邱建军,男,29岁,博士后,副研究员,主要从事作物生长模拟、农业生态和区域发展研究,发表论文20余篇,合作译著1部、专著1部.E-mail:liugl@public.bta.net.cn E-mail:liugl@public.bta.net.cn
  • 基金资助:

    国家“九五”重点科技攻关项目新疆兵团棉花双百万亩双百斤两高一优综合技术开发”子专题资助(85722224201207).

Theory and practice of calibration and validation of crop simulation model

Qiu Jianjun1, Xiao Yingnan2, Xin Dehui2, Hu Xining3   

  1. 1. Institute of Resource Zoning, Chinese Academy of Agricultural Sciences.Beijing 100081;
    2. Department of Ecologyand Environmental Sciences, China Agricultural University, Beijing 100094;
    3. Cotton Science Institute, Xi njiang Academy of Agricultural Reclamation, Shihezi 832000
  • Received:1998-01-05 Revised:1998-05-20 Online:1999-11-25 Published:1999-11-25

摘要: 以GOSSYM模型为例系统阐述了作物生长模拟模型有关参数校正和模型有效化的一般原理和方法,同时用新疆棉区的试验具体校正了品种参数、土壤参数和修改了部分模块,并对校正结果进行了验证。结果表明,两个试点土壤20~40、60~80cm两个土层生长季水分动态观测值与土壤参数校正后模型的模拟值吻合较好;系5品种试验生育期6项生物指标动态模拟结果与实测值拟合的相关系数都在0.9以上,并且不同栽培条件的3个处理的模拟产量的相对误差平均为7.5%,模拟结果较理想。

关键词: 作物, 模拟模型, 校正, 有效化, 全氮, 全磷, 速效磷, 铵态氮, 互花米草湿地

Abstract: Taking GOSSYM model as an example,the theory and methodology for calibration andvalidation of crop growth simulation model were expounded in this paper.The variety and soil parameters of the model used in cotton planting area of Xinjiang were calibrated,some modules of the model were modified, and the result of calibration was also validated. The results show that at two experimental sites, the observational values of soil moisture in 20~40 and 60~80 cm layers in growing season were better identical to those simulated by the model with calibrated soil parameter. The coefficients of simulated and experimental values of six biological indexes of Xi-5 (an early maturity cotton variety) in its growth and development period were all above 0.9,and the relative errors of the simulating yields of three treatments under different cultivation conditions were averaged by 7.5%.

Key words: Crop, Simulation model, Calibration, Validation, Spartina alterniflora wetland, NH4+-N, AP, TP, TN