Pedosphere 16(3): 304--311, 2006
ISSN 1002-0160/CN 32-1315/P
©2006 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Relationships between permeability and erodibility of cultivated acrisols and cambisols in subtropical China
YU Dong-Sheng1, SHI Xue-Zheng1 and D. C. WEINDORF2
1 State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China). E-mail: dshyu@issas.ac.cn
2 Department of Agribusiness, Agronomy, Horticulture and Range Management, Tarleton State University, Stephenville, TX 76402 (USA)
ABSTRACT
      The relationships between soil erodibility factor (K) and soil saturated permeability (Kfs) for cultivated Acrisols derived from Quaternary red clay and Cambisols derived from red sandstone were studied and quantified using a rainfall simulator and Guelph permeameter in a hilly area of subtropical China. A negative correlation existed between Kfs of the topsoil (0-5 cm) and K. The empirical expression Ka×Kfs-b + c, where a, b and c are the structural coefficients related to soil properties, such as soil type, soil parent material, organic matter, pH and mechanical composition, best described the relationship between soil saturated permeability and soil erodibility.
Key Words:  soil erodibility, soil saturated permeability, subtropical China, upland
Citation: Yu, D. S., Shi, X. Z. and Weindorf, D. C. 2006. Relationships between permeability and erodibility of cultivated acrisols and cambisols in subtropical China. Pedosphere. 16(3): 304-311.
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