灌溉水稻生长发育和潜力产量的模拟模型

A Simulation Model for Irrigated Rice Growth and Potential Yield

本文提出的HDRICE模型是灌溉水稻生长的生理生态模型，它由相互衍接的水稻形态发育、干物质积累和叶面积发育三模块组成。形态发育模块用以模拟逐日温度和日长对水稻发育的影响，其参数可反映水稻品种的基本营养性、感温性和感光性；干物质积累模块用以模拟冠层CO_2同化、作物的维持呼吸和生长呼吸及干物质分配等过程；叶面积发育模块用以模拟叶面积指数的动态。本文还讨论了模型的输入参数和模型检验。模型可应用于模拟水稻的生长发育，预测水稻品种潜在产量及为取得潜在产量所必需的群体数量指标。

The HDRICE model presented here is an ecophysiological model for irrigated rice production.It consists of three interconnected modules,the modules of phenological development of rice,daily dry matter production and leaf area development.The first is used to simulate the effects of daily temperature and daylength on rice development,and the parameters reflect the basic vegetative phase,thermo-and photoperiod sensitivities for rice varieties.The serond is utilized to simulate the daily rate of gross CO_2 assimilation of the canopy,maintenance and growth respiration of crop,and dry matter partitioning.The third is used to record the dynamics of leaf area development.The input parameters for specific cultivar and the evaluation of the model were discussed in this paper.The model could be used as a framework to describe the phenological development of rice,to predict the potential yield for specific variety in specific environmental conditions,and the population quantitative indexes needed to achieve the attainable yield.