The applicability of the exposed roots of Carpinus Orientalis. for the estimation of soil erosion in Hassan Abad Valley, Mazandaran Province3
Subject Areas : forestviliam bayram zadeh 1 , babak shah karam 2
1 - Department of wood Sciences, Faculty of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj, Iran,
2 - Department of Soil Sciences, Faculty of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj, Iran
Keywords: soil erosion, Exposed roots, Carpinus Orientalis, Root anatomy, Dendrogeomorphology,
Abstract :
The knowledge of erosion estimating is requisite for controlling soil erosion. The purpose of this research was estimating annual soil erosion using anatomical changes in exposed roots of Carpinus Orientalis in Hassan abad valley, Chaloos, Iran. For this purpose, we select eight Carpinus Orientalis trees as quite random and cut their exposed roots. Moreover the geographic coordinates of trees, the slope intensity and direction, altitude and percentage of vegetation has been written. Cross-sections of 20 µm were prepared using microtome and the first year of exposure by erosion was identified. We finally estimated the mean annual erosion. The statistical relationship of the mean annual erosion with the percentage of the plant coverage, geographical aspects and slopes were investigated. The mean erosion of the study area has been estimated around 0.4 mm per year. There was positive relationship between annual erosion and slope density and negative relationship between the annual erosion and percentage of the plant coverage. The samples obtained in southern aspect showed higher annual erosions. We concluded that anatomical changes of exposed roots (Dendrogeomorphology) of Carpinus Orientalisare valuable tools to date erosion events, however, the responses of diverse species under different types of erosion remains to be studied in future.
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