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生态学杂志 ›› 2010, Vol. 29 ›› Issue (02): 387-394.

• 研究报告 • 上一篇    下一篇

植被界面过程(VIP)模型的改进与验证

王昆1,2;莫兴国1**;林忠辉1;张喜英3;舒畅1,2   

  1. 1中国科学院地理科学与资源研究所陆地水循环及地表过程重点实验室, 北京 100101|2中国科学院研究生院, 北京 100049;3中国科学院遗传与发育生物学研究所农业资源研究中心, 石家庄 050021
  • 出版日期:2010-02-10 发布日期:2010-02-10

Improvement and validation of vegetation interface process model.

WANG Kun1,2|MO Xing-guo1|LIN Zhong-hui1|ZHANG Xi-ying3|SHU Chang1,2   

  1. 1Key Laboratory of Water Cycle and Related Land Surface Processes, IGSNRR, Chinese Academy of Sciences, Beijing 100101, China|2Graduate University of Chinese Academy of Sciences, Beijing 100049, China|3Center for Agricultural Resources Research, Institute of Genetics and Development Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
  • Online:2010-02-10 Published:2010-02-10

摘要: 为了提高植被界面过程(VIP)模型的预报能力,对VIP模型的一些参数化方案进行了更新,包括基于相对生育期的根深动态、根系分布密度和比叶面积季节变化,使模型能从机理上更合理地描述作物同化物分配及土壤水分运动。将改进后的模型应用于河北栾城冬小麦生长季的叶面积指数、生物量和土壤水分模拟,并与相应时期的试验资料对比验证。结果表明,改进后的VIP模型对土壤水分动态和冬小麦叶面积指数的模拟效果更好,模型各状态变量模拟值与观测值的均方根误差和相关系数都得到明显提高。

关键词: 有机物料, 黄瓜, 苗期病害, 土壤微生物

Abstract: In order to improve the prediction capability of vegetation interface process (VIP) model, some parameterization schemes were updated, including the descriptions about the root depth with sinusoid of relative development stages, the root distribution density in soil depths, and the specific leaf area (SLA) variation in growth stages. The improved model was used to simulate the leaf area index, plant biomass, and soil moisture content at the Luancheng Agricultural Station in Hebei Province, and validated by the field observation data during the same periods. The results showed that the model performances in simulating soil moisture content, leaf area  index, and other state variables were improved.

Key words: Organic materials, Cucumber, Seedling disease, Soil microorganism