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为探索稻茬麦根构型的方向性,使用田间数字化仪实现稻茬麦根系的数值化,将根系数据导入Pro-E重构出根系的空间状态图,然后将根构型每隔10°进行各向投影,计算根系构型在18个维度的分形维数与分形丰度.结果表明:小麦苗期根构型在各维度的分形特征具有较强的规律性,表明根系在土体中的分布具有明显的方向性.在苗期到返青期,根构型在18个维度的分形指标波动性大,表明这一时期内根系生长处于持续的动态变化过程.在拔节期,根构型在各维度的分形再次呈现出一定的规律性,表明根系在土体中的分布重新表现出明显的方向性.该研究方法可以精准描述和分析植物根系在田间环境中的分布状况.
In order to explore the directionality of wheat stubble configuration, field digitizer was used to quantify the root system of rice stubble. The root system data was imported into Pro-E to reconstruct the spatial state diagram of root system. And the projections of the root system in 18 dimensions and the fractal abundance were calculated.The results showed that the fractal features of root architecture in wheat seedling had a strong regularity in all dimensions, The distribution of root pattern has obvious direction.While the fractal index of root structure in 18 dimensions has a great fluctuation in seedling stage and turning green stage, which indicates that the root growth is in the process of continuous dynamic change during the period.At jointing stage, The fractal in all dimensions showed a certain regularity once again, indicating that the distribution of root system in soil again showed a clear direction.The method can accurately describe and analyze the distribution of plant roots in the field environment.