基于虚拟模型的水稻冠层叶面积计算方法

发布时间：2018-07-10 14:02

本文选题：作物 + 模型　；参考：《农业工程学报》2017年02期

【摘要】：水稻冠层的叶面积是分析水稻生长状况的重要参数,传统叶面积统计方法效率较低且误差较大,难以对植株冠层不同高度层的叶面积进行测量。针对传统水稻冠层叶面积统计方法的薄弱点,该文提出一种基于虚拟模型的水稻冠层叶面积计算方法。该方法首先通过田间试验获取的水稻形态参数,建立虚拟水稻模型,然后基于该模型计算植株整体叶面积以及两株水稻在一定株距下不同高度层内叶片面积的大小,从而为水稻种植管理措施的优化提供参考。该文算法与长宽校正法相比,在整株叶面积统计结果上,二者相差在5%左右;每层叶片面积实际测定和仿真结果的比较,两者误差在10%之内。该方法对于水稻冠层叶片面积统计具有一定的实际意义。
[Abstract]:The leaf area of rice canopy is an important parameter to analyze the growth of rice. The traditional statistical method of leaf area is less efficient and has a large error, so it is difficult to measure the leaf area of different height layers of plant canopy. Aiming at the weakness of traditional rice canopy leaf area statistical method, a new method of rice canopy leaf area calculation based on virtual model is proposed in this paper. In this method, a virtual rice model was established based on the rice morphological parameters obtained from field experiments. Based on the model, the total leaf area of the plant and the leaf area of two rice plants in different height layers were calculated. So as to provide a reference for the optimization of rice planting management measures. Compared with the method of length and width correction, the difference between the two methods is about 5%, and the error is less than 10% between the actual measurement of leaf area in each layer and the result of simulation. This method has certain practical significance for rice canopy leaf area statistics.
【作者单位】：浙江工业大学计算机科学技术学院;中国水稻研究所水稻生物学国家重点实验室;
【基金】：国家自然科学基金项目(61571400,31471416,31301230) 浙江省自然科学基金项目(LY14C130005) 国家高技术研究发展计划项目2013AA10230502
【分类号】：S511;S126

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