Analysis of Permeability for Different Soil Types in Chongqing

Abstract

Permeability is an important link between the surface water and groundwater in the process of transformation, also a significant factor influencing the runoff production. The water infiltration experiment was carried out by single loop method in the different soil types in Beibei District, Chongqing, meanwhile, the permeability of different soil types and depths are discussed. The results showed: (1) The mean permeability of sandy land, grassland and forestland was 2.37mm/min, 1.48mm/min and 0.55mm/min respectively; (2) Under the same depth condition, Stable permeability of the different land types emerged as sandy land> grassland>forestland. (3) As for the same soil type, Stable permeability decreased with increasing soil depth. These results are helpful for the mitigation of soil erosion in mountain areas, Chongqing.