
TY  - JOUR
A1  - Shirsath, S. K. 
A1  - Bhattacharyya, T. 
A1  - Pal, D. K. 
T1  - Minimum threshold value of smectite for vertic properties
JF  - Soil Research
JO  - Soil Res.
Y1  - 2000
VL  - 38
IS  - 1
SP  - 189
EP  - 202
KW  - Mineralogy class, taxonomic rationale.
UR  - https://doi.org/10.1071/SR99051 
N2  - From a significant positive correlation between linear extensibility (LE) and the smectite content in the soil control section (SCS) of 8 soils (2 red soils, Alfisols, and 6 black soils, Vertisols, and their intergrades), the present study indicates an excellent compatibility between the marked shrink&#8211;swell characteristics and the smectitic mineralogy. The initiation of vertic properties at LE of 6 in shrink&#8211;swell soils corresponded to a minimum threshold value of 20% smectite. In order to highlight the inherent relationship between vertic properties and the swelling minerals, the mineralogy class for shrink&#8211;swell soils in US Soil Taxonomy should be only smectitic. 
ER  -

