Plant Spectral Discrimination Based on Phenological Features
文献类型：期刊论文
| 作者 | Zhang Lei1; Zhao Jian-long1; Jia Kun1; Li Xiao-song1 |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2015 |
| 卷号 | 35期号:10页码:4317-4325 |
| 关键词 | Plant discrimination Phenological features Continuum removal Maximumspectral absorption depth |
| 通讯作者 | Jia, K (reprint author), Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China. |
| 英文摘要 | Spectral analysis plays asignificant role onplant characteristic identification and mechanism recognition, there were many papers published on the aspects of absorption features in the spectra of chlorophyll andmoisture, spectral analysis onvegetation red edge effect, spectra profile feature extraction, spectra profile conversion, vegetation leaf structure and chemical composition impacts on the spectra in past years. However, fewer researches issued onspectral changes caused by plant seasonal changes oflife form, chlorophyll, leaf area index. This paper studied on spectral observationof 11 plantsof various life form, plant leaf structure and its size, phenological characteristics, they includedeciduous forest with broadvertical leaf, needleleafever-green forest, needleleafdeciduous forest, deciduous forest with broadflat leaf, high shrub with big leaf, high shrub with little leaf, deciduous forest with broad little leaf, short shrub, meadow, steppe andgrass. Field spectral data were observed with SVC-HR768 (Spectra Vista company, USA), the band width covers 350 similar to 2 500 nm, spectral resolution reaches 1 similar to 4 nm. The features of NDVI, spectral maximum absorption depth in green band, and spectral maximumabsorption depth in red bandwere measured after continuum removal processing, the mean, amplitude andgradientof thesefeatures onseasonalchange profilewere analyzed, meanwhile, separability research on plant spectral feature of growth period and maturation period were compared. The paper presents a calculation method ofseparabilityof vegetation spectra which consider feature spatial distances. This index is carried on analysis of the vegetation discrimination. The results show that: the spectral featuresduring plant growth periodare easier to distinguish than them during maturation period. With the same features comparison, plant separabilityof growth period is 3 points higherthan it during maturation period. The overall separabilityof vegetation spectrumfeatures shows seasonal amplitude> seasonal gradient>seasonal mean during the growth period, but the separabilityof seasonal gradient shows highest value for the plant seasonal NDVI change. Therefore, the features of seasonal NDVI gradient, seasonal amplitude of maximumspectral absorption depth in green band, seasonal amplitude of mmdmumabsorption depthin red band are effective composition for plant discrimination. |
| 研究领域[WOS] | Spectroscopy |
| 收录类别 | SCI ; EI |
| 语种 | 中文 |
| WOS记录号 | WOS:000362241400031 |
| 源URL | [http://ir.ceode.ac.cn/handle/183411/38100]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1.[Zhang Lei 2.Li Xiao-song] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100101, Peoples R China 3.[Zhao Jian-long] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 4.[Jia Kun] Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Lei,Zhao Jian-long,Jia Kun,et al. Plant Spectral Discrimination Based on Phenological Features[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2015,35(10):4317-4325. |
| APA | Zhang Lei,Zhao Jian-long,Jia Kun,&Li Xiao-song.(2015).Plant Spectral Discrimination Based on Phenological Features.SPECTROSCOPY AND SPECTRAL ANALYSIS,35(10),4317-4325. |
| MLA | Zhang Lei,et al."Plant Spectral Discrimination Based on Phenological Features".SPECTROSCOPY AND SPECTRAL ANALYSIS 35.10(2015):4317-4325. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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