基于三维DLA和L-系统的草地早熟禾根系生长模型研究  

Growth Model of Kentucky Bluegrass Root System Based on DLA and Random L-system with Parameters

作　　者：尹莹莹[1] 石莹[1] 杨简[1] 

机构地区：[1]吉林农业大学信息化教学与管理中心,长春130118

出　　处：《湖北农业科学》2014年第24期6071-6074,共4页Hubei Agricultural Sciences

基　　金：吉林农业大学青年科研基金项目(201331)

摘　　要：针对草地早熟禾建模过程中根系建模难的问题,提出一种基于三维DLA的不定根系生长过程模型和一种基于带参数随机L-系统的一级侧根模型。前者以DLA分形理论为基础,以根的胚轴为生长中心,选取粒子的释放区域,建立分形状态的不定根系生长模型;后者依据草地早熟禾一级侧根的自然生长规律建立了一级侧根的随机L-系统生成元。最后在计算机上使用VC++和OPENGL对所建模型进行了三维模拟实现。结果表明,基于三维DLA模型和基于L-系统的一级侧根生长模型顺应草地早熟禾根系的生长发育规律,能够真实模拟草地早熟禾不定根系的生长发育过程。The growth model of Kentucky bluegrass root system was established based on 3-D DLA model and random L- system with parameters. The growth model of adventitious roots was based on DLA fractal theory, with hypocotyl as the growth center for properly selecting the release area of particle. Based on the growth rule of first lateral roots of Kentucky bluegrass, a growth model based on random L-system with parameters was proposed. The 3-D simulation of the model estab- lished was realized on computer with VC＋＋ and OpenGL. The results showed that the growth model based on 3-D DLA and random L-system was fitted with the growth law of Kentucky bluegrass roots. It can well simulate the whole process of growth kentucky bluegrass roots.

关 键 词：虚拟根系模型 DLA 带参数随机L-系统 草地早熟禾 

分 类 号：S126[农业科学—农业基础科学] TP391[自动化与计算机技术—计算机应用技术]