Parameters of vG Model for Soil Water Retention Curve

机译：土壤水分保持曲线的vG模型参数

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The soil water retention curve is the foundation to numerically simulate the soil water movement,so it is of great significance to build models to describe the soil water retention curve and to estimate the parameters.In this paper,vG model parameters of the soil samples in Unsaturated Soil Hydraulic Property(UNSODA) are estimated with MATLAB,and the results indicate..(1) In order to exactly reflect the character of the soil water retention curve,the experimental data should be enough to cover all the water content range with equall distribution;(2) Parameter a lies between 0 and 1.0(1/cm) and mostly lies between 0 and 0.1(1/cm);parameter n mostly lies between 1.0 and 2.0 except for that of sand.(3) When the soil stickiness is bigger,the parameter a is bigger but the parameter n is smaller.

机译：土壤水分保持曲线是数值模拟土壤水分运动的基础，因此建立模型来描述土壤水分保持曲线和估算参数具有重要意义。用MATLAB对不饱和土壤水力特性进行了估算，结果表明：（1）为了准确反映土壤保水曲线的特征，实验数据应足以覆盖所有含水量。分布;（2）参数a位于0到1.0（1 / cm）之间，大部分位于0到0.1（1 / cm）之间;参数n除沙子外大部分位于1.0到2.0之间。（3）当土壤粘性越大，参数a越大，参数n越小。

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来源
《Effective Utilization of Agricultural Soil amp; Water Resources and Protection of Environment》|2006年|222-226|共5页
会议地点 Nanjing(CN);Nanjing(CN)
作者
SONG Weihua; rnZHANG Hongwei; rnHAN Jun;
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作者单位

Cong Zhentao@Department of Hydraulic Engineering,Tsinghua University,Beijing,100084,China--Zhang Zhuoying@Department of Hydraulic Engineering,Tsinghua University,Beijing,100084,China--Ni Guangheng@Department of Hydraulic Engineering,Tsinghua University,Beijing,100084,China--Lei Zhidong@Department of Hydraulic Engineering,Tsinghua University,Beijing,100084,China--;

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原文格式 PDF
正文语种 eng
中图分类农田基本建设、农垦;
关键词
soil water retention curve; vG model; UNSODA;

机译：土壤保水曲线； vG模型； UNSODA;

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1. Conversion of the Modified Kovacs Model Parameters to the Brooks and Corey and van Genuchten Model Parameters for the Water Retention Curve of Sandy and Silty Soils [J] . Maqsoud Abdelkabir, Bussiere Bruno, Aubertin Michel, Journal of irrigation and drainage engineering . 2013,第5期

机译：沙质和粉质土壤保水曲线的修正Kovacs模型参数转换为Brooks和Corey和van Genuchten模型参数
2. A general Beerkan Estimation of Soil Transfer parameters method predicting hydraulic parameters of any unimodal water retention and hydraulic conductivity curves: Application to the Kosugi soil hydraulic model without using particle size distribution data [J] . Fernandez-Galvez J., Pollacco J. A. P., Lassabatere L., Advances in Water Resources . 2019,第JULa期

机译：预测任何单峰保水率和水力传导率曲线的水力参数的通用Beerkan估算土壤转移参数方法：在不使用粒度分布数据的情况下应用于Kosugi土壤水力模型
3. A general Beerkan Estimation of Soil Transfer parameters method predicting hydraulic parameters of any unimodal water retention and hydraulic conductivity curves: Application to the Kosugi soil hydraulic model without using particle size distribution data [J] . Fernandez-Galvez J., Pollacco J. A. P., Lassabatere L., Advances in Water Resources . 2019,第Jula期

机译：普通啤酒师估算土壤转移参数方法预测任何单峰保水和液压导电性曲线的液压参数：在不使用粒度分布数据的情况下应用于Kosugi土水力模型的应用
4. Parameters of vG Model for Soil Water Retention Curve [C] . Effective Utilization of Agricultural Soil Water Resources and Protection of Environment . 2007

机译：土壤水保留曲线VG模型的参数
5. Evaluation of soil water characteristic curves and permeability functions for modeling of seepage in unsaturated soils. [D] . Fuselier, Tulin Beate Hosagasi. 2006

机译：评价土壤水分特征曲线和渗透率函数，用于非饱和土壤渗流建模。
6. Modeling the Soil Water Retention Curves of Soil-Gravel Mixtures with Regression Method on the Loess Plateau of China [O] . Huifang Wang, Bo Xiao, Mingyu Wang, -1

机译：在中国黄土高原与建模回归法土碎石混合料的土壤水分特征曲线
7. Modeling of soil water retention curve using soil solid phase parameters [O] . Walczak R. T., Moreno Lucas Félix, Sławiński Cezary, 2013

机译：利用土壤固相参数模拟土壤保水曲线

Parameters of vG Model for Soil Water Retention Curve

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