Evaluation of pedotransfer functions for predicting soil bulk density for U.S. soils
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 کاملdeveloping pedotransfer functions for saline and saline-alkali soils
soil moisture retention curve is one of the soil hydraulic prosperities which its direct measurement is time consuming and expensive. therefore, indirect methods such as developing pedotransfer functions have been used to predict this characteristic from soil readily available or easily measurable data. in this study, multiple linear regression method was used to develop point pedotransfer func...
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doi:10.2136/sssaj2011.0380 Received 7 Nov. 2011. *Corresponding author ([email protected]). © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without per...
متن کاملStudy of Pedotransfer Functions Multivariate regression, MLP and RBF to estimate CEC for Soils of North Ahvaz
To estimate the Cation Exchange Capacity (CEC), indirect manner used of Pedotransfer Functions (PTFs). CEC is one of the important soil fertility factors, and not measured directly because it is costly and time consuming. Thus, used from regression equations between easily and non-easily soil properties. The purpose of this research, is develop the PTFs for CEC, with use of easily available soi...
متن کاملPedotransfer functions for estimating soil moisture content using fractal parameters in Ardabil province
Extended abstract 1- Introduction Soil moisture curve is an important characteristic of soil and its measurement is necessary for determining soil available water content for plant, evapotranspiration and irrigation planning. Direct measurements of soil moisture coefficients are time-consuming and costly. But it is possible to estimate these characteristics from readily available soil propert...
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ژورنال
عنوان ژورنال: Ain Shams Engineering Journal
سال: 2018
ISSN: 2090-4479
DOI: 10.1016/j.asej.2016.12.002