A Comparison of Saturated Hydraulic Conductivity (Ksat) Estimations from Pedotransfer Functions (PTFs) and Field Observations in Riparian Seasonal Wetlands
نویسندگان
چکیده
Accurate saturated hydraulic conductivity (Ksat) predictions are critical for precise water flow estimations. Pedotransfer functions (PTFs) have been used to estimate Ksat based on soil structural and textural properties. However, PTF accuracy must be validated with observed values improve confidence in model predictions. A study was conducted the seasonal wetlands of a representative mixed land-use watershed West Virginia (WV), USA. The data included characteristics piezometric using slug tests. Soil texture predominantly sandy, average ranged from 35.90 169.64 m/d. bulk dry density (bdry) increased, while porosity volumetric content decreased significantly depth 45 cm (p < 0.05). degree saturation varied between monitoring sites Pearson correlation matrix Principal Component Analysis (PCA) revealed that more connected properties, specifically clay. Single parameter PTFs estimated as function clay performed better (ME = −90.19 m/d, RMSE 102.87 m/d) than silt or sand percentages (ME= −96.86 108.77). all five predicted low (RMSE > 100 m/d), emphasizing need calibrate existing develop site-specific PTFs. These results provide valuable insights into estimation riparian watersheds helpful reference land managers future work.
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ژورنال
عنوان ژورنال: Water
سال: 2023
ISSN: ['2073-4441']
DOI: https://doi.org/10.3390/w15152711