Evaluating the performance of PC-ANN for the estimation of rice nitrogen concentration from canopy hyperspectral reflectance
文献类型：期刊论文
| 作者 | Yi ; Qiuxiang ; Huang ; Jingfeng ; Wang ; Fumin ; Xiuzhen |
| 刊名 | INTERNATIONAL JOURNAL OF REMOTE SENSING
 |
| 出版日期 | 2010 |
| 卷号 | 31期号:4页码:931-940 |
| 关键词 | ARTIFICIAL NEURAL-NETWORKS PRINCIPAL-COMPONENTS-ANALYSIS FOLIAR CHEMISTRY IMAGERY |
| ISSN号 | 0143-1161 |
| 通讯作者 | Yi, QX, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China |
| 中文摘要 | In this study, a wide range of leaf nitrogen concentration levels was established in field-grown rice with the application of three fertilizer levels. Hyperspectral reflectance data of the rice canopy through rice whole growth stages were acquired over the 350 nm to 2500 nm range. Comparisons of prediction power of two statistical methods (linear regression technique (LR) and artificial neural network (ANN)), for rice N estimation (nitrogen concentration, mg nitrogen g(-1) leaf dry weight) were performed using two different input variables (nitrogen sensitive hyperspectral reflectance and principal component scores). The results indicted very good agreement between the observed and the predicted N with all model methods, which was especially true for the PC-ANN model (artificial neural network based on principal component scores), with an RMSE 0.347 and REP 13.14%. Compared to the LR algorithm, the ANN increased accuracy by lowering the RMSE by 17.6% and 25.8% for models based on spectral reflectance and PCs, respectively. |
| 学科主题 | 在农业、林业上的应用 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/9978]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Yi,Qiuxiang,Huang,et al. Evaluating the performance of PC-ANN for the estimation of rice nitrogen concentration from canopy hyperspectral reflectance[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2010,31(4):931-940. |
| APA | Yi.,Qiuxiang.,Huang.,Jingfeng.,Wang.,...&Xiuzhen.(2010).Evaluating the performance of PC-ANN for the estimation of rice nitrogen concentration from canopy hyperspectral reflectance.INTERNATIONAL JOURNAL OF REMOTE SENSING,31(4),931-940. |
| MLA | Yi,et al."Evaluating the performance of PC-ANN for the estimation of rice nitrogen concentration from canopy hyperspectral reflectance".INTERNATIONAL JOURNAL OF REMOTE SENSING 31.4(2010):931-940. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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