The significance of (surface) physical and chemical properties in determining soil surface condition of red earths in rangelands [Cobar, New South Wales]
1989
Greene, R.S.B. | Tongway, D.J. (Commonwealth Scientific and Industrial Research Organization, Deniliquin (Australia). Div. of Wildlife and Ecology)
The surface layers of a red earth near Cobar, New South Wales were classified into 4 condition classes by using attributes that are readily observable in the field. These classes provide a reliable estimate of potential dry matter production. Analyses of various physical and chemical properties were made on soil samples from 3 depths, and soil surface resistance and infiltration were carried out in the field. The differences in physical and chemical properties support earlier evidence that the classes 1-4 essentially represent an erosional sequence from no erosion (class 1) to strongly eroded (class 4). The importance of these physical and chemical properties of different soil classes in determining productivity of rangeland soils is briefly discussed.
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