群落での光環境データを導入した植物の 3DCG生育モデリング

概要

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This paper assumes the growth of plant individuals in semi-natural grassland, and investigates 3D modeling of the growth with actual insolation data by 3D computer graphics (3DCGs) and its application. At present the 3DCGs for plant individuals are utilized mainly in the landscape simulation field, and it is difficult to apply to academic or scientific fields due to the complexity of the shape of leaves, caules, flowers, and so on. Therefore, plant individuals were experimentally grown in several photoenvironments, and the results were expressed by 3DCGs. In addition, to investigate growth simulations in the semi-natural grassland, growth situations were assumed in which dominant species existed. The experiment was performed by using "Nohara-Azami" (Cirsium oligophyllum). Some pots of the Nohara-Azami were grown in three kinds of cheesecloths that had different shading ratio. In addition, the lengths of the plant individuals and each leaf were measured each month. As a result, growth of the Nohara-Azami in each cheesecloth grew in different behavior. Therefore, 3D modeling for each Nohara-Azami was performed by using 3DCGs, and these 3D models were compared. Conseauently, it is expected that the growth simulations for valuable species can be realized in semi-natural grassland.