一种考虑磷元素的基于L系统的虚拟根系方法  

Model virtual root system based on L-systems considering phosphorus

作　　者：李松阳[1] 高继勋[1] 刘骥[2] 曾令秋[2] 朱庆生[2] 

机构地区：[1]河南工程学院计算机学院 [2]重庆大学计算机学院

出　　处：《计算机应用研究》2014年第8期2380-2382,2386,共4页Application Research of Computers

基　　金：重庆市自然科学基金资助项目(2010BB2213;2011BB207);河南工程学院博士基金资助项目(D2013001);河南省教育厅科学技术重点研究项目(14A520043)

摘　　要：基于空间开拓算法提出一种根系对磷元素感知方法,并基于L系统构建虚拟根系,用于模拟非均匀磷分布对根系生长的影响。采用L系统构建根系生长动态模型,模拟根系生长;依据空间开拓算法实现非均匀磷分布条件下的磷向性计算;依据假设磷分布实验,展示并分析了磷对根系生长的影响。模拟结果表明,提出的方法能够有效感知磷梯度,模拟与分析磷对根系生长的影响。Based on space colonization,this paper proposed a method to sense phosphorus distribution. Then it constructed virtual roots model based on L-systems to simulate that how roots responsed to heterogeneous phosphate distribution. It had used the dynamic root growth model based on L-systems to simulate root development. The space colonization algorithm was employed to compute phosphorus tropism caused by heterogeneous phosphate distribution. It set an assumed phosphate gradient,and analyzed the root length over soil depth. The results show that the proposed method can capture phosphate gradient,simulate and analysis root architecture affected of phosphorus.

关 键 词：根系生长模型 磷 空间开拓算法 L系统 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]