Root growth angle, root diameter, root surface area, root volume, root weight, and root-shoot ratio make up the root system configuration. However, because the root-grown soil cannot be directly observed, it is very difficult to accurately determine the various parameters of the root structure using traditional methods. The main research object of the root system configuration in recent years is forest woody plants and cultivated crops. The main contents of the study are to explore the relationship between root system and spatial heterogeneity of soil and to study the configuration and function of the plant root system by root sequence method. The research on the root architecture of natural grassland plants mainly focuses on the further classification of root architecture, the underground ecological biology characteristics of the root grasses of northern grassland and the ecological adaptation of root architecture to grassland degradation. For the analysis of roots, the root system can be used for effective analysis and analysis.
Axon type is considered to be the most primitive basic root type. The roots usually consist of obviously developed main roots and their successive stages of lateral root formation, with a few adventitious roots participating in the formation. In the 7 parameters of the axon root configuration, the total root volume was significantly correlated with the average diameter; there was also a significant correlation between the number of roots and the number of roots. The root system configuration was mainly affected by bifurcation number, root tip number and average diameter, and total root volume. With the increase of the number of root bifurcations, the root system continued to extend downwards and circumferentially around the vertebral body; at the same time, the diameter of the root increased continuously, and thus the total root length of the root system increased and the total volume of the root system increased. Therefore, the number of root bifurcations and the average root diameter are the key factors that determine the axon root architecture.
Through the root system analysis, it was found that the root diameter increased as the rank order increased (the first end was the root). The axon root architecture has the highest root rank and largest diameter. At the same time, the root diameter not only reflects the configuration characteristics of the root, but also is closely related to the turnover of the root carbon. The number of root bifurcations determines the branching conditions of the root system. As an important part of the root system configuration, it determines the spatial distribution properties of the root system in the soil, and also affects the root nutrient absorption capacity and fixation.
Axon type is considered to be the most primitive basic root type. The roots usually consist of obviously developed main roots and their successive stages of lateral root formation, with a few adventitious roots participating in the formation. In the 7 parameters of the axon root configuration, the total root volume was significantly correlated with the average diameter; there was also a significant correlation between the number of roots and the number of roots. The root system configuration was mainly affected by bifurcation number, root tip number and average diameter, and total root volume. With the increase of the number of root bifurcations, the root system continued to extend downwards and circumferentially around the vertebral body; at the same time, the diameter of the root increased continuously, and thus the total root length of the root system increased and the total volume of the root system increased. Therefore, the number of root bifurcations and the average root diameter are the key factors that determine the axon root architecture.
Through the root system analysis, it was found that the root diameter increased as the rank order increased (the first end was the root). The axon root architecture has the highest root rank and largest diameter. At the same time, the root diameter not only reflects the configuration characteristics of the root, but also is closely related to the turnover of the root carbon. The number of root bifurcations determines the branching conditions of the root system. As an important part of the root system configuration, it determines the spatial distribution properties of the root system in the soil, and also affects the root nutrient absorption capacity and fixation.
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