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构建合理的作物受光模型和作物光合作用模拟模型,对科学进行作物栽培管理、提高作物光能利用效率、增加作物产量都具有非常重要的意义。在温室设施条件下作物光合作用的数学模拟,对于优化设施生产管理具有重要的理论价值和应用前景。以温室作物光合作用数学模拟为主线,一方面对目前描述植物冠层结构的主要模型大叶模型、多层模型和二叶模型在构建温室作物受光模型中应用进行了详细总结,并对上述模型的理论基础、结构功能及应用特点进行了分析,指出针对不同的设施栽培条件及作物特点,选择合适的模型,同时针对温室环境控制条件改变所引起的作物生理变化和栽培管理对作物生长发育的影响选择合理的参数,是构建温室作物受光模型成功的关键。另一方面对作物光合作用模拟模型中单叶光合模拟模型和群体光合模拟模型在预测日光温室作物光合作用中的应用进行了分析,指出虽然作物的群体光合模拟模型在评价温室作物群体光能利用率及干物质积累中有重要的实际意义,但是如何选择合适的时空尺度,完成从冠层内单叶光合效率模拟模型向群体光合效率模拟模型的过渡,寻求模型简化和机理完善之间恰当的平衡,仍然是目前温室作物光合作用模拟的一个难点。
Constructing a reasonable model of crop light and crop photosynthesis simulation is very important for scientific crop cultivation and management, improving crop light energy efficiency and increasing crop yield. Mathematical simulation of photosynthesis of crops under greenhouse conditions has important theoretical value and application prospects for the optimization of facilities and production management. Taking the photosynthesis mathematical simulation of greenhouse crops as the main line, on the one hand, the application of big leaf model, multi-layer model and two-leaf model, which describe the current plant canopy structure, were summarized in detail. It also points out that according to the different cultivation conditions and characteristics of crops, the suitable model is selected. At the same time, according to the change of greenhouse environment control conditions and the change of crop physiology and cultivation management to the growth and development of crops Affect the choice of reasonable parameters, is the key to building a successful model of greenhouse crop light. On the other hand, the application of single-leaf photosynthesis model and population photosynthesis simulation model in crop photosynthesis prediction in crop photosynthesis model were analyzed. Although crop photosynthesis model was used to evaluate the light energy utilization of greenhouse crop population Rate and dry matter accumulation. However, how to choose the suitable spatio-temporal scale and to complete the transition from single-leaf photosynthetic efficiency simulation model to group photosynthetic efficiency simulation model in the canopy and to seek the appropriate model simplification and mechanism improvement Balance, is still a greenhouse crop photosynthesis simulation of a difficult point.