Hyperspectral remote sensing of cyanobacterial pigments as indicators of the iron nutritional status of cyanobacteria-dominant algal blooms in eutrophic lakes
文献类型：期刊论文
| 作者 | Chi, Guangyu; Ma, Jian; Shi, Yi; Chen, Xin |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 71页码:609-617 |
| 关键词 | Cyanobacteria Remote Sensing Lakes Iron Pigment |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2015.06.014 |
| 英文摘要 | Iron can stimulate cyanobacterial growth. Determining iron availability to cyanobacteria is therefore essential for timely warnings of bloom development. The objectives of this study were to determine the key spectral parameters indicating cellular iron status in cyanobacteria and to establish reliable equations for estimating iron nutrition in cyanobacterial cells. Cells, pigments, cellular iron, and spectra of cyanobacteria were measured monthly at 17 sites in Meiliang Bay of Taihu Lake during the summer period of cyanobacterial blooms from 2010 to 2013. Pronounced spatial and temporal variability of cellular iron of cyanobacteria was observed. The previously developed structure-insensitive pigment index (SIPI) and plant senescence reflectance index (PSRI) and the newly proposed chlorophyll alpha/phycocyanin inclthc (R-Chl/PC) exhibited strong relationships with cyanobacterial cellular iron content. The relationships between the cellular iron concentration and SIPI, PSRI and R-Chl/PC could be expressed as linear, quadratic and cubic functions, respectively. The equations derived herein were tested using independent data from 2008 to 2009, obtained from 31 sites within Taihu Lake. For the three models that included SIPI, PSRI and R-Chl/PC as predictors, the coefficients of determination (R-2) between the measured and estimated cellular iron concentration were 0.549, 0.584 and 0.909, and the mean relative errors (RE) were 17.1%, 18.1% and 8.0%, respectively. The overall results indicated that use of the three key hyperspectral parameters, SIPI, PSRI and R-Chl/PC, could be used for non-destructive and real-time monitoring of the iron nutritional status of cyanobacteria-dominant algal blooms in eutrophic lakes. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000388157900061 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/122898]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Chen, Xin |
| 作者单位 | Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chi, Guangyu,Ma, Jian,Shi, Yi,et al. Hyperspectral remote sensing of cyanobacterial pigments as indicators of the iron nutritional status of cyanobacteria-dominant algal blooms in eutrophic lakes[J]. ECOLOGICAL INDICATORS,2016,71:609-617. |
| APA | Chi, Guangyu,Ma, Jian,Shi, Yi,&Chen, Xin.(2016).Hyperspectral remote sensing of cyanobacterial pigments as indicators of the iron nutritional status of cyanobacteria-dominant algal blooms in eutrophic lakes.ECOLOGICAL INDICATORS,71,609-617. |
| MLA | Chi, Guangyu,et al."Hyperspectral remote sensing of cyanobacterial pigments as indicators of the iron nutritional status of cyanobacteria-dominant algal blooms in eutrophic lakes".ECOLOGICAL INDICATORS 71(2016):609-617. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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