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| 棉花黄萎病病情严重度的连续统去除估测法 | |
| 引用本文： | 竞 霞,王纪华,宋晓宇,徐新刚,陈 兵,黄文江. 棉花黄萎病病情严重度的连续统去除估测法[J]. 农业工程学报, 2010, 26(1): 193-198. DOI: 10.3969/j.issn.1002-6819.2010.01.034 |
| 作者姓名： | 竞 霞 王纪华 宋晓宇 徐新刚 陈 兵 黄文江 |
| 作者单位： | 1. 西安科技大学测绘科学与技术学院,西安,710054;国家农业信息化工程技术研究中心,北京,100097 2. 国家农业信息化工程技术研究中心,北京,100097 3. 石河子大学农学院新疆生产建设兵团绿洲生态农业重点开放实验室,石河子,832003 |
| 基金项目： | 国家科技支撑计划（2006BAD10A01，2007BAH12B02）；西安科技大学培育基金项目。 |
| 摘 要： | 该文利用地面高光谱数据遥感监测棉花黄萎病病情严重度.通过分析黄萎病不同病情严重度下棉花单叶光谱变化特征,筛选对病情严重度识别的敏感波段,利用连续统去除法对光谱反射率进行处理并构建基于光谱特征吸收参量的病情严重度估测模型.红光光谱(650～700 nm)是识别棉花单叶黄萎病病情严重度的最佳波段,且随受害棉叶病情严重度增加,红光光谱吸收波段位置向长波方向移动,吸收波段深度及特征吸收峰面积减小,二者与病情严重度呈极显著线性相关关系.以红光波段特征吸收峰右半端面积为自变量建立的线性模型具有最大决定系数,最小均方根误差,为棉花单叶黄萎病病情严重度估测的最佳模型.研究结果表明,利用高光谱遥感技术能够有效地监测棉花黄萎病病情严重度,为进一步深入研究棉花黄萎病的遥感监测机理提供理论依据. |
| 关 键 词： | 棉花，光谱分析，参数提取，连续统，黄萎病 |
| 收稿时间： | 2008-10-24 |
| 修稿时间： | 2009-11-02 |
Continuum removal method for cotton verticillium wilt severity monitoring with hyperspectral data |
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| Jing Xia,Wang Jihua,Song Xiaoyu,Xu Xingang,Chen Bing,Huang Wenjiang. Continuum removal method for cotton verticillium wilt severity monitoring with hyperspectral data[J]. Transactions of the Chinese Society of Agricultural Engineering, 2010, 26(1): 193-198. DOI: 10.3969/j.issn.1002-6819.2010.01.034 | |
| Authors: | Jing Xia Wang Jihua Song Xiaoyu Xu Xingang Chen Bing Huang Wenjiang |
| Affiliation: | 1.College of Geometrics/a>;Xi'an University of Science and Technology/a>;Xi'an 710054/a>;China/a>;2.National Engineering Research Center for Information Technology in Agriculture/a>;Beijing 100097/a>;3.Key Laboratory of Oasis Ecology Agriculture of Xinjiang Production and Construction Group/a>;College of Agriculture/a>;Shihezi University/a>;Shihezi 832003/a>;China |
| Abstract: | The objective of this study was to estimate verticllium wilt severity levels of cotton leaf using ground hyperspectral data.According to the analysis of spectrum features of cotton leaf at different severity levels,the bands sensitive to verticllium wilt severity level were selected and the spectrum reflect was processed and the inversion model of severity level based on absorption parameters of spectrum features was established using a method of continuum removal.Results showed that the band ranging from 6... |
| Keywords: | cotton spectrum analysis parameter extraction continuum verticillium wilt |
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