棉花群体光合生产动态模拟

Model modelling for photosynthesis of cotton community

摘要:

以棉花的生物学特性为基础,充分考虑棉花株型特征,将棉株分成三层(层距为1.5个叶面积指数),逐层进行光合作用模拟,并加以综合,得出棉花群体光合产量。资料验证结果表明,在水肥等条件适宜的情况下,本模型能较好地反映棉花光合生产特性,模拟预测棉花总生物量精度较高,可用于辅助指导大田生产管理。

Abstract:

Based on biological and plant-shape characteristics of cotton,a model of photosynthetical production of cotton community was modified by dividing the plant into three layers with distance between two neighbouring layers being 1.5 in leaf area index.Photosynthesis was modelled layer by layer and summed up to be total yields.Model test indicates that water and fertilizer being appropriate,it can achieve good results and be useful for field management.