Characteristics of Soil Mechanical Composition and Heterogeneity Analysis Of River Beach in Yongding River
[ Objective ] The aim was to research characteristics of soil mechanical composition and heterogeneity analysis of river beach inYongding River and provide theoretical reference for ecological restoration. [ Method ] Using outdoor fixed-point sampling and indoor analysis method,soil mechanical composition of different sections in the Yong ding River was studied. [ Result] The results showed that in Yongding River the soil mechanical composition was content of gravel,clay content was less, but all less than 5 %. In components of the gravel class, 10 -20 cm content was greater than 0 - 10 cm, sand, silt content showed 0 - 10 cm content was greater than 10 -20 cm, between the upper and lower clay content did not change significantly. [ Conclusion ] Rational fertilization should be based on soil conditions, improvement should pay attention to the reasonable structure of soil mechanical composition.