Pedotransfer functions for point and parametric estimations of soil water retention curve
نویسندگان
چکیده
منابع مشابه
Multiscale Pedotransfer Functions for Soil Water Retention
Soil hydraulic properties are needed in globaland regionalscale circulation models for hydrologic and climate forecasting. They are also necessary in pointand nonpoint-source contaminant transport models. Prediction accuracy of these models is highly dependent on the quality of the model parameters. Collecting the required soil hydraulic parameters by direct measurement at any model grid scale ...
متن کاملField-Scale Water Flow Simulations Using Ensembles of Pedotransfer Functions for Soil Water Retention
Using pedotransfer functions (PTF) to estimate soil hydraulic properties may be necessary in soil water flow simulations for large-scale projects or in pilot studies. The accuracy of a PTF outside of its development dataset is generally unknown. The existence of multiple models that are developed and tested in one region, but may perform relatively poorly in other regions, is also common in met...
متن کاملevaluation of the performance of pedotransfer functions for estimating soil moisture retention curve with swrc model
soil water retention curve (swrc) is important in the studies of soil and water relationship, soil conservation, irrigation scheduling, drainage, solute transport, plant growth and crop water stress. the performance of 10 models (simons et al., libardy et al., campbell, farrell and larson, van genuchten, brooks and corey, driessen, exponential bruce-luxmore, power bruce-luxmore, and rogowski) w...
متن کاملperformance evaluation of some internal pedotransfer functions to prediction soil moisture retention curve
soil moisture retention curve (smrc) is an important soil property which expresses reaction between matric potential and moisture of soil. direct measurement of soil matric potential and moisture is labour- and time-consuming. in order to prevail this problem, indirect methods are used for smrc prediction. pedotransfer functions (ptfs) are one of these indirect methods. this study was carried o...
متن کاملderivation of pedotransfer function to estimate parameters of double-exponential equation for soil water retention curve
soil water retention curve is one of the crucial input parameters in any modeling study on water flow and solute transport in soils. direct measurement of soil water retention curve is time-consuming and costly. alternatively, pedotransfer functions (ptfs) may be used to indirectly estimate the soil water retention curve from easily measured soil properties. many equations for the soil water re...
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ژورنال
عنوان ژورنال: Plant, Soil and Environment
سال: 2011
ISSN: 1214-1178,1805-9368
DOI: 10.17221/3448-pse