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| 1 | 基于PLSR方法的马铃薯叶片氮素含量机载高光谱遥感反演显示文摘作物氮素状况是评价土壤肥力和作物长势的重要指标,叶片氮素状况的实时无损估测对合理氮素管理、提高产量和改善品质具有重要意义。本文选择不同氮处理条件下的马铃薯作为研究对象,利用AISAEagle机载高光谱成像系统获取试验区的高光谱图像,在对图像进行精确的几何、辐射校正和反射光谱重建基础上,提取每个处理马铃薯冠层的高光谱数据。选取波长430-910nm范围内原始光谱R及其D1(R)、D2(R)、Log(1/R)、DLog(1/R)、D2Log(1/R)5种变式数据,根据田间同步采样叶片的氮素含量数据,利用偏最小二乘回归法(PLSR)构建了马铃薯叶片氮素含量的光谱预测模型,并进行全氮含量填图。结果表明:基于一阶导数光谱D1(R)的偏最小二乘回归模型的效果最优,决定系数(R2)和校正均方差(RMSEC)分别为0.82、0.38%。将该最优估算模型应用到整个高光谱图像上,得到试验区马铃薯叶片全氮分布图,图像上氮的值域为3.35%-5.95%,与地面实测结果3.59%-5.89%基本一致,且叶片全氮值的大小分布与马铃薯长势分布一致。研究结果可为研制和开发基于高光谱成像技术的马铃薯叶片氮素预测方法提供理论和技术支持。 | 李峰 Alchanatis Victor 赵红 赵玉金 崔晓飞 | 2014 | 中国农业气象2014，35，3： | 10 |
| 2 | Sensing technologies for precision specialty crop production显示文摘 | W.S. Lee V. Alchanatis C. Yang M. Hirafuji D. Moshou C. Li | 2010 | Computers and Electronics in Agriculture2010，，1： | 2 |
| 3 | Use of thermal and visible imagery for estimating crop water status of irrigated grapevine 显示文摘 | Moiler M Alchanatis V Cohen Y | 2007 | Journal of Experimental Botany2007，58，4： | 1 |
| 4 | The enzymatic cycliza- tion of nerolidyl diphosphate by δ-cadinene synthase from cotton stele tissue infected with Verticillium dahliae 显示文摘 | Alchanati I Patel J Liu J | 1998 | Phytochemistry1998，47，6： | 1 |
| 5 | Frontal brain lobe impairment in obstructive sleep apnea:a proton MR spectroscopy study显示文摘 | Alchanatis M Deligiorgis N Zias N | 2004 | Eur Respir J2004，24，6： | 1 |
| 6 | Frontal brain lobe impairment in obstructive sleep apnoea: a proton MR spectroscopy study显示文摘 | Alchanatis M Deligiorgis N Zias N | 2004 | Eur Respir J2004，24，6： | 1 |
| 7 | A proteomic analysis reveals the loss of expression of the cell death regulatory gene GRIM-19 in human renal cell carcinomas显示文摘 | Alchanati I Nallar SC Sun P | | 0，，54： | 1 |
| 8 | Image fusion of visible and thermal images for fruit detection显示文摘 | Bulanon D M Burks T F Alchanatis V | 2009 | Biosystems Engineering2009，103，1： | 1 |
| 9 | A proteomic analysis reveals the loss of expression of the cell death regulatory gene GRIM-19 in human renal cell carcinomas显示文摘 | Alchanati I Nallar S C Sun P | 2006 | Oncogene2006，25，54： | 1 |
| 10 | A proteomic analy-sis reveals the loss of expression of the cell death regu-latory gene GRIM-19in human renal cell carcinomas显示文摘 | Alchanati I Nallar S C Sun P | 2006 | Oncogene2006，25，54： | 1 |
| 11 | In-field assessment of single leaf nitrogen status by spectral reflectance measurements显示文摘 | Alchanatis V Schmilovitch Z Meron M | 2005 | Precision Agriculture2005，6，1： | 1 |
| 12 | Image fusion of visible and thermal images for fruit detection 显示文摘 | Bulanon D M Burks T F Alchanatis V | 2009 | Bio Systems Engineering2009，103，1： | 1 |
| 13 | Sleep apnea-related cognitive deficits and intelligence:an implication of cognitive reserve theory显示文摘 | Alchanatis M Zias N Deligiorgis N | 2005 | J Sleep Res2005，14，1： | 1 |
| 14 | Image - Processing Algorithms for Tomato Classification 显示文摘 | Laykin S Alchanatis V Fallik E | 2000 | Transactions of the ASAE2000，45，3： | 1 |
| 15 | Evidence for left ventricular dysfunction in patients with obstructive sleep apnea syndrome显示文摘 | Alchanatis M Tourkohoriti G Kosmas E N | 2002 | Eur Respir J2002，20，5： | 1 |
| 16 | Evaluation of different approaches for estimating and mapping crop water status in cotton with thermal imaging显示文摘 | Alchanatis V Cohen Y Cohen S | 2010 | Precision Agriculture2010，11，： | 1 |
| 17 | Estimation of leaf water potential by thermalimagery and spatial analysis显示文摘 | Cohen Y Alchanati V Meron M | 2005 | Journal of Experimental Botany2005，56，417： | 1 |
| 18 | Sensing technologies for precision specialty crop production 显示文摘 | Leea W S Alchanatis V Yang C | 2010 | Computers and E- lectronics in Agliculture2010，74，1： | 1 |
| 19 | Daytime pulmo- nary hypertension in patients with obstructive sleep apnea: the effect of continuous positive airway pressure on pulmonary hemo dynamics显示文摘 | Alchanatis M Tourkohoriti G Kakouros S | 2001 | Respiration2001，68，6： | 1 |
| 20 | Estima- tion of Leaf Water Potential by Thermal Imagery and Spatial Analysis 显示文摘 | Cohen Y Alchanatis V Meron M | 2005 | Journal of Experimental Botang2005，417，56： | 1 |
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