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A new method for estimating soil water repellency index
Pekarova, P; Pekar, J; Lichner, L
2015
Source PublicationBIOLOGIA
ISSN0006-3088
Volume70Issue:11Pages:1450-1455
AbstractThe soil water repellency index, R, is calculated from the ethanol sorptivity, S-e, and water sorptivity, S-w, using an equation: R = 1.95 S-e/S-w. In the older method, Se and Sw were measured in pairwise arrangements to reduce the influence of spatial heterogeneity of soil properties, and one value of R only was calculated from one pair of S-e and S-w measurements. The new method to estimate R takes into account all the measured values of water and ethanol sorptivity, i. e., m x n values of R are to be calculated from m values of S-w and n values of S-e. The results of the t-test revealed that there is not a statistically significant difference between the means of both samples at the 95.0% confidence level for all four studied soils. It was found using the F-test that there is not a statistically significant difference between the variances of samples estimated by the older and new methods at the 95.0% confidence level for all but one (grassland soil) studied soils. Comparison of R values taken in sandy soil under different vegetation cover in Sekule, southwest Slovakia, revealed that the average values of R estimated using the new method increased with vegetation succession, i. e., Pure sand < Glade soil < Grassland soil < Pine-forest soil, while the mean values of R estimated using the older method changed in the order: Pure sand < Grassland soil < Glade soil < Pine-forest soil. It seems that an increase in the number of R values processed can result in the more reliable mean values of R at the sites with high spatial heterogeneity of soil properties.
KeywordPost-wildfire Soils Hydrophysical Parameters Sandy Soil Flow Infiltration Scale Sorptivity Surfaces Molarity Impact
Indexed ByWOS:000368886700004
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10224
Collection文献共享
Recommended Citation
GB/T 7714
Pekarova, P,Pekar, J,Lichner, L. A new method for estimating soil water repellency index[J]. BIOLOGIA,2015,70(11):1450-1455.
APA Pekarova, P,Pekar, J,&Lichner, L.(2015).A new method for estimating soil water repellency index.BIOLOGIA,70(11),1450-1455.
MLA Pekarova, P,et al."A new method for estimating soil water repellency index".BIOLOGIA 70.11(2015):1450-1455.
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