نتایج جستجو برای: pedotransfer function

تعداد نتایج: 1213152  

Journal: :Journal of Tekirdag Agricultural Faculty 2021

Bu çalışmanın amacı, Çarşamba Ovasında yetiştirilen soya bitkisinin verim parametreleriyle (bitki boyu, bin tane ağırlığı ve verimi) toprakların bazı kimyasal özellikleri arasındaki korelasyon ilişkilerine dayanarak, bu özellikler arasında pedotransfer modellerin oluşturulması elde edilen ova topraklarında bitki veriminin tahmininde uygulanabilirliğinin belirlenmesidir. amaçla, ovanın çiftçiler...

ژورنال: علوم آب و خاک 2011
مهدی همایی, , وحیدرضا جلالی, ,

Soil bulk density measurements are often required as an input parameter for models that predict soil processes. Nonparametric approaches are being used in various fields to estimate continuous variables. One type of the nonparametric lazy learning algorithms, a k-nearest neighbor (k-NN) algorithm was introduced and tested to estimate soil bulk density from other soil properties, including soil ...

ژورنال: علوم آب و خاک 2012
روح اله رضایی ارشد, , علیرضا جعفرنژادی, , غلامعباس صیاد, , مسعود مظلوم, , مهدی شرفا, ,

Direct measurement of soil hydraulic characteristics is costly and time-consuming. Also, the method is partly unreliable due to soil heterogeneity and laboratory errors. Instead, soil hydraulic characteristics can be predicted using readily available data such as soil texture and bulk density using pedotransfer functions (PTFs). Artificial neural networks (ANNs) and statistical regression are t...

Journal: :Water 2023

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 lan...

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