Analysis of soil anti-shearing intensity of different types of crops
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Abstract:
To ascertain the influences on soil anti-shearing intensity of different types of crops, this research is aimed at Moyunshan Small Watershed of Liaoning Province. The soil samples of soybean growing area, corn growing area, fruit trees growing area and fruit trees terraces are collected and the soil moisture contents are measured. Soil cohesion and angle of internal friction are measured by direct shearing. It analyses the correlation of soil shear strength and soil moisture between the same crops and the different ones, as well as the internal friction angle. According to the experimental data(soil cohesion: corn(49.27kpa)>soybean(38.36kpa)> terraces(30.00kpa) >fruit tree(28.36kpa); angle of internal fiction: fruit tree(25.45°)>soybean(23.26°)>corn(20.24°)> terraces(19.51°)), the analysis results show that the soil shear strength of corn growing area, soybean growing area, fruit trees growing area and fruit trees terraces has dramatic differences. The quadratic linear analysis of the soil cohesion and soil moisture contents of different types of crops was conducted, and the fitting degree was good.
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