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Pedotransfer function for estimation of soil-specific surface area using soil fractal dimension of improved particle-size distribution.
- Source :
-
Archives of Agronomy & Soil Science . Jan2013, Vol. 59 Issue 1, p93-103. 11p. 5 Charts, 4 Graphs. - Publication Year :
- 2013
-
Abstract
- The specific surface area (SSA) of a soil is crucial for the interface of ions and water molecules with the soil particles. Therefore, many physical and chemical properties of a soil are determined using its total SSA. Measurement of SSA is time-consuming and laborious, and its estimation using pedotransfer functions is therefore preferred. The objectives of this study were to: (1) analyze the pore–solid interface fractal dimension (D) in soils with different textures from thesouthern part of Iran using estimated improved particle-size distribution (PSD) from the soil primary particles, i.e. clay, silt and sand; (2) develop a multivariate pedotransfer function to estimate D based on PSD; and (3) develop a multivariate pedotransfer function to link the values of D to the SSA. As a result, two pedotransfer functions are presented for estimation of D and SSA. To estimate SSA, the value of D is first obtained using the presented pedotransfer function and these estimated D values are then used in another pedotransfer function to estimate SSA. The pedotransfer functions were validated and it is concluded that they are able to predict the values of D and SSA accurately. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 03650340
- Volume :
- 59
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Archives of Agronomy & Soil Science
- Publication Type :
- Academic Journal
- Accession number :
- 83404111
- Full Text :
- https://doi.org/10.1080/03650340.2011.602632