湖北农业科学2025，Vol.64Issue(2)：64-68,74,6.DOI:10.14088/j.cnki.issn0439-8114.2025.02.010
ORYZA(V3)模型对珠三角地区双季稻参数的模拟效果及验证分析
The simulation effect and verification analysis of ORYZA(V3)model on the parameters of double-cropping rice in the Pearl River Delta Region
摘要
Abstract
Taking the Pearl River Delta Region as the research area,based on the growth and development observation data of double-cropping rice at different sowing dates,as well as local meteorological and soil data from 2018 to 2020,the ORYZA(V3)model was calibrated using data from 2018 to 2019 to adjust and determine the basic parameters of the crop.The ORYZA(V3)model was validat-ed using the growth duration,leaf area index and biomass of double-cropping rice in 2020.The results showed that the ORYZA(V3)model accurately simulated the growth duration of double-cropping rice in the Pearl River Delta,with deviations ranging from 0 to 3 days compared to observed values.The simulated dynamic changes in leaf area index(LAI)for both early and late-season rice in 2020 closely matched the observed values.The average linear regression coefficients(α values)of the simulated LAI were close to 1,accom-panied by R2 values of 0.670 4 and 0.766 0,respectively.The results of t-test indicated no significant difference between the simulat-ed and observed LAI values(P>0.05).The ORYZA(V3)model had a large error in simulating the biomass of various organs on the ground of rice,but it was still within an acceptable range from a statistical point of view,and the simulation performance was more ac-curate for late-season rice than early-season rice.The ORYZA(V3)model could accurately simulate rice growth by calibrating the crop parameters,and could be applied to rice production in the Pearl River Delta region.关键词
ORYZA(V3)模型/双季稻/模型校准/模拟效果/验证/珠三角地区Key words
ORYZA(V3)model/double-cropping rice/model calibration/simulation effect/verification/Pearl River Delta Region分类
农业科技引用本文复制引用
叶树春,王广伦,钟珑,曾繁威,陈元哲,孔正圆..ORYZA(V3)模型对珠三角地区双季稻参数的模拟效果及验证分析[J].湖北农业科学,2025,64(2):64-68,74,6.基金项目
中国气象局创新发展专项(CXFZ2021Z059) （CXFZ2021Z059）
云浮市科技计划项目(S2023020202) （S2023020202）
