%0 Journal Article
%T Research on fitting van Genuchten equation parameter with MATLAB software<br>利用MATLAB拟合van Genuchten 方程参数的研究
%A YANG Gai-qiang
%A HUO Li-juan
%A YANG Guo-yi
%A LI Yi-fei
%A QIAN Tian-wei
%A <br>杨改强
%A 霍丽娟
%A 杨国义
%A 李一菲
%A 钱天伟
%J 土壤
%D 2010
%I 
%X By using of the MATLAB software functions including lsqcurvefit, nlinfit, lsqnonlin, fminsearch, fminunc and fgoalattain, the van Genuchten equation parameters were fitted. The conclusions showed that the fitting effects of the MATLAB functions such as lsqcurvefit, nlinfit, curvefit and nlintool were better, the program had small size and rapid convergence. Especially, the fitting effects of the MATLAB software functions were more excellent than RETC and REDT with fewer experimental data.
%K van Genuchten
%K Soil water retention curve
%K MATLAB
%K Fitting<br>van
%K Genuchten
%K 土壤持水曲线
%K MATLAB
%K 拟合
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=56F69E970C6E5190CDB409D28DD0E3C6&aid=CDF2DA5574AEAAEB91621CA9182612F2&yid=140ECF96957D60B2&vid=ECE8E54D6034F642&iid=0B39A22176CE99FB&sid=DC330B09A33F1455&eid=6826CBE9C80ACB20&journal_id=0253-9829&journal_name=土壤&referenced_num=0&reference_num=13