%0 Journal Article
%T Near infrared spectroscopy in determining organic carbon and total nitrogen in black soil of Northeast China.<br>近红外光谱分析法测定东北黑土有机碳和全氮含量
%A 申艳
%A 张晓平
%A 梁爱珍
%A 时秀焕
%A 范如芹
%A 杨学明
%J 应用生态学报
%D 2010
%I 
%X In this study, near infrared reflectance spectroscopy (NIRS) was used to determine the organic carbon (OC), total nitrogen (TN), and C/N ratio in black soil of Northeast China. Based on the 3699-12000 cm-1 NIRS of 136 black soil samples collected in 2004-2005, and by  using. partial least square (PLS), the related quantitative models were established. Leave one out cross validation showed that the OC and TN were well predicted, with the values of coefficient of determination (R2) being 0.92 and 0.91, RPD (the ratio of standard deviation of validation set to root mean square error of cross validation) being 3.45 and 3.36, and correlation coefficient (r) being 0.94 and 0.93 respectively, suggesting that NIRS had the potential to predict the OC and TN in black soil of Northeastern China. However, the C/N ratio was poorly predicted, with R2=0.61, RPD=1.61, and r=0.74, indicating that NIRS could not give reasonable prediction for the C/N ratio in black soil.
%K black soil
%K near infrared spectroscopy
%K organic carbon
%K total nitrogen
%K C/N
%K partial least square<br>黑土
%K 近红外光谱
%K 有机碳
%K 全氮
%K 碳氮比
%K 偏最小二乘
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=9D93FBA62BC43A11BA19EA24B1D8A926&yid=140ECF96957D60B2&vid=659D3B06EBF534A7&iid=CA4FD0336C81A37A&sid=91C9056D8E8856E0&eid=DDD31293A7C7D057&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=0