Studies on the Time-Varying Effect of Root Morphology and Soil Reinforcement of Two Kinds of Herbs

Abstract

The roots can significantly increase the soil reinforcement of vegetation, and the fractal theory provides a new perspective for vegetation roots studies. This article applied the Fractal Fox software to calculate the fractal dimension of medicago sativa and cynodon dactylon roots in different growth periods and proved that the two species show fractal characteristics. The conclusions from the analysis are as follows: ①The fractal dimensions of the two plant roots tend to be stable with the increase of growth period; ②The fractal characteristic value of cynodon dactylon root is more significant than medicago sativa root; ③Compared with medicago sativa root, cynodon dactylon root is more effective in increasing the shear strength of soil.

The structure of root systems in young woody plants under the conditions of park areas with the composite topography

“…The study of the morphological structure of roots as a system is of research interest since it is of great importance in understanding of improvement of soil properties and fertility, as well as in the exchange of substances and energy between vegetation and soil (Zhao et al 2012).…”

“…The mechanical effect of root systems on the soil is manifested by the depth of penetration (Böhm 1979, Danjon et al 2008, Stokes et al 2009, Li et al 2017); soil saturation with roots of tree and shrub plant species (Terebukha 1971, Pylypenko et al 2010, 2019; the peculiarity of their morphological structure and anti-erosion properties, which manifest themselves through the ratio of the horizontal projection of the root system to the horizontal projection of the crown (Kalinin et al 1998, Maliuha and Khryk 2010, Zhao et al 2012.…”