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首页> 外文会议>International Symposium on Plant Growth Modeling, Simulation, Visualization and their Applications; 20031013-20031016; Beijing; CN >A Process and Component-Based Wheat Growth Simulation System
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A Process and Component-Based Wheat Growth Simulation System

机译：基于过程和组件的小麦生长模拟系统

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摘要

An ecophysiological processes-based wheat growth simulation model, WheatGrow, was developed with object-oriented and component programming for control of the data base and interface management so to make simulation system modular, general, accurate and user-friendly. In the WheatGrow model, physiological development time (PDT) was used as the development scale to predict the different apical development stages and phenology. The linear relationships between PDT and apical primordium dynamics were quantified to model the shoot apical development. Partitioning indexes of shoot, leaf and ear were developed to simulate dry matter distribution among organs. From the soil water balance submodel, water stress factors were formulated to simulate the effects of water logging and drought on growth progresses. From the N, P, K dynamic submodels, nutrient stress factors were developed to simulate the effects of different N, P, K levels. The WheatGrow was widely tested using a number of data sets from different locations, years, sowing dates, varieties and fertilizers with good reliability and applicability.
机译：开发了基于生态生理过程的小麦生长模拟模型WheatGrow，该模型具有面向对象和组件编程的控件，用于控制数据库和界面管理，从而使模拟系统模块化，通用，准确且易于使用。在WheatGrow模型中，以生理发育时间（PDT）作为发育尺度来预测不同的根尖发育阶段和物候。定量PDT和顶原基动力学之间的线性关系，以模拟芽顶发育。研究了茎，叶和穗的分配指数，以模拟干物质在器官之间的分布。根据土壤水分平衡子模型，制定了水分胁迫因子，以模拟渍水和干旱对生长过程的影响。从N，P，K的动态子模型中，开发了营养胁迫因子来模拟不同N，P，K水平的影响。 WheatGrow已使用来自不同地点，年份，播种日期，品种和肥料的大量数据集进行了广泛测试，具有良好的可靠性和适用性。

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