Estimation of Soil Clay Content from Hygroscopic Water Content Measurements

Soil clay content underlies prion infection odds

Environmental factors-especially soil properties-have been suggested as potentially important in the transmission of infectious prion diseases. Because binding to montmorillonite (an aluminosilicate clay mineral) or clay-enriched soils had been shown to enhance experimental prion transmissibility, we hypothesized that prion transmission among mule deer might also be enhanced in ranges with rela...

Soil Dielectric Model Accounting for Contribution of Bound Water Spectra through Clay Content

In this paper, there was studied correlation of dielectric predictions for moist soils with the measured values, regarding the well known and prevalent in common usage semiempirical mixing dielectric model (SMDM) proposed by M. C. Dobson et al., on the one hand, and the generalized refractive mixing dielectric model (GRMDM) proposed by V. L. Mironov et al., on the other hand. The analysis is ba...

estimation soil water content under deficit irrigation by using dssat

crop models need more evaluation and study for use in deficit irrigation. the main objective of this paper was to study the efficiency and accuracy of dssat model, in estimating of moisture in the soil profile under two levels of water application¬¬¬ in silage maize field. two irrigation treatments including deficit irrigation (0.7 smd), and a full irrigation (smd) were considered for two years...

Time Stability of Soil Water Content

Desert soil clay content estimation using reflectance spectroscopy preprocessed by fractional derivative

Effective pretreatment of spectral reflectance is vital to model accuracy in soil parameter estimation. However, the classic integer derivative has some disadvantages, including spectral information loss and the introduction of high-frequency noise. In this paper, the fractional order derivative algorithm was applied to the pretreatment and partial least squares regression (PLSR) was used to as...