Sensitivity of soil structure to changes in organic carbon content: Predictions using pedotransfer functions
نویسندگان
چکیده
منابع مشابه
Pedotransfer 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...
متن کاملevaluation of pedotransfer functions and effect of organic matter in prediction of soil saturated water content
abstract saturated water content is one of the important parameters which its measurement is necessary in estimation of soil water retention and unsaturated hydraulic conductivity curves. in several researches, saturated water content is assumed to be equal to soil total porosity. in some others, its value is estimated by pedotransfer functions using readily available parameters, such as bulk d...
متن کاملData Assimilation with Soil Water Content Sensors and Pedotransfer Functions in Soil Water Flow Modeling
Soil Sci. Soc. Am. J. 76:829–844 doi:10.2136/sssaj2011.0090 Received 7 Mar. 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 informat...
متن کاملMultiscale 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 کاملCropping practices, soil properties, pedotransfer functions and organic carbon storage at Kuanria canal command area in India
Effects of cropping practices on soil properties viz. particle size distribution, pH, bulk density (BD), field capacity (FC, -33 kPa), permanent wilting point (PWP, -1500 kPa), available water capacity (AWC) and soil organic carbon (SOC) were assessed. The pedotransfer functions (PTFs) were developed for saturated hydraulic conductivity (Ks), water retention at FC and PWP of soils for different...
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ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 1997
ISSN: 0008-4271,1918-1841
DOI: 10.4141/s96-094