Ability of the Photochemical Reflectance Index to Track Light Use Efficiency for a Sub-Tropical Planted Coniferous Forest
文献类型：期刊论文
| 作者 | Zhang, Qian1; Ju, Weimin1; Chen, Jing M.1; Wang, Huimin1; Yang, Fengting1; Fan, Weiliang1; Huang, Qing1; Zheng, Ting1; Feng, Yongkang1; Zhou, Yanlian1 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2015 |
| 卷号 | 7期号:12页码:8312-8319 |
| 关键词 | multi-angle hyperspectra PRI LUE sub-tropical coniferous forest |
| 通讯作者 | Chen, JM (reprint author), Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing 210023, Jiangsu, Peoples R China. |
| 英文摘要 | Light use efficiency (LUE) models are widely used to estimate gross primary productivity (GPP), a dominant component of the terrestrial carbon cycle. Their outputs are very sensitive to LUE. Proper determination of this parameter is a prerequisite for LUE models to simulate GPP at regional and global scales. This study was devoted to investigating the ability of the photochemical reflectance index (PRI) to track LUE variations for a sub-tropical planted coniferous forest in southern China using tower-based PRI and GPP measurements over the period from day 101 to 275 in 2013. Both half-hourly PRI and LUE exhibited detectable diurnal and seasonal variations, and decreased with increases of vapor pressure deficit (VPD), air temperature (Ta), and photosynthetically active radiation (PAR). Generally, PRI is able to capture diurnal and seasonal changes in LUE. However, correlations of PRI with LUE varied dramatically throughout the growing season. The correlation was the strongest (R-2 = 0.6427, p < 0.001) in July and the poorest in May. Over the entire growing season, PRI relates better to LUE under clear or partially cloudy skies (clearness index, CI > 0.3) with moderate to high VPD (>20 hPa) and high temperatures (>31 degrees C). Overall, we found that PRI is most sensitive to variations in LUE under stressed conditions, and the sensitivity decreases as the growing conditions become favorable when atmosphere water vapor, temperature and soil moisture are near the optimum conditions. |
| 研究领域[WOS] | Remote Sensing |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000367534900001 |
| 源URL | [http://ir.ceode.ac.cn/handle/183411/38355]  |
| 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, Qian 2.Ju, Weimin 3.Chen, Jing M. 4.Huang, Qing 5.Feng, Yongkang 6.Qiu, Feng 7.Wang, Jun 8.Chou, Shuren] Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing 210023, Jiangsu, Peoples R China 9.[Zhang, Qian 10.Ju, Weimin |
| 推荐引用方式 GB/T 7714 | Zhang, Qian,Ju, Weimin,Chen, Jing M.,et al. Ability of the Photochemical Reflectance Index to Track Light Use Efficiency for a Sub-Tropical Planted Coniferous Forest[J]. REMOTE SENSING,2015,7(12):8312-8319. |
| APA | Zhang, Qian.,Ju, Weimin.,Chen, Jing M..,Wang, Huimin.,Yang, Fengting.,...&Chou, Shuren.(2015).Ability of the Photochemical Reflectance Index to Track Light Use Efficiency for a Sub-Tropical Planted Coniferous Forest.REMOTE SENSING,7(12),8312-8319. |
| MLA | Zhang, Qian,et al."Ability of the Photochemical Reflectance Index to Track Light Use Efficiency for a Sub-Tropical Planted Coniferous Forest".REMOTE SENSING 7.12(2015):8312-8319. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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