Long-term dynamics of peak photosynthesis timing and environmental controls in the Tibetan Plateau monitored by satellite solar-induced chlorophyll fluorescence
文献类型：期刊论文
| 作者 | Tu, Zhiqin1,2; Sun, Yuan3,7; Wu, Chaoyang4; Ding, Zhi5; Tang, Xuguang2,6 |
| 刊名 | INTERNATIONAL JOURNAL OF DIGITAL EARTH
 |
| 出版日期 | 2024-12-31 |
| 卷号 | 17期号:1页码:22 |
| ISSN号 | 1753-8947 |
| 关键词 | Vegetation phenology peak photosynthesis timing global change eddy covariance Tibetan Plateau |
| DOI | 10.1080/17538947.2023.2300311 |
| 通讯作者 | Sun, Yuan(sunyuan@aircas.ac.cn) ; Tang, Xuguang(xgtang@hznu.edu.cn) |
| 英文摘要 | Vegetation phenological metrics have attracted increasing attentions during recent years. However, compared with the peak greenness timing (PGT), the peak photosynthesis timing (PPT) has been overlooked until now. As the world's third pole, the Tibetan Plateau is one of the most sensitive areas to global climatic change. In this study, long-term time-series solar-induced chlorophyll fluorescence (SIF) data were used to identify the PPT patterns, trends, and responses in the Tibetan Plateau over the past two decades. Our findings indicated that the SIF-derived PPT can better capture the characteristics from flux-measured gross primary productivity compared with the MODIS EVI-based PGT, exhibiting great potential to characterize large-scale vegetation PPT dynamics. The multi-year mean PPT mainly appeared in late July and early August with a gradually delayed trend from southeast to northwest. Meanwhile, early PPT occurred in many areas of the Tibetan Plateau (67.36%), with the overall trend advanced by about 0.89 day decade-1. Interestingly, opposite trends of PPT were found with elevation below and above 2500 m asl. Preseason temperature, shortwave radiation, and precipitation jointly explained the strong spatial heterogeneity of PPT trend. All analyses help clarify the role of the 'third pole' in responding to environmental change and regional carbon cycles. |
| WOS关键词 | GROSS PRIMARY PRODUCTION ; VEGETATION INDEXES ; SPRING PHENOLOGY ; CLIMATE-CHANGE ; QINGHAI ; MEADOW ; PRODUCTIVITY ; EXCHANGE ; FORESTS ; TIME |
| 资助项目 | Major Project of High Resolution Earth Observation System[30-Y60B01-9003-22/23] ; Special Project on National Science and Technology Basic Resources Investigation of China[2021FY100701] |
| WOS研究方向 | Physical Geography ; Remote Sensing |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS LTD |
| WOS记录号 | WOS:001138071300001 |
| 资助机构 | Major Project of High Resolution Earth Observation System ; Special Project on National Science and Technology Basic Resources Investigation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/201808]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Sun, Yuan; Tang, Xuguang |
| 作者单位 | 1.East China Normal Univ, Sch Ecol & Environm Sci, Shanghai, Peoples R China 2.HangzhouNormal Univ, Inst Remote Sensing & Geosci, Key Lab Urban Wetlands & Reg Change, Hangzhou, Peoples R China 3.Chinese Acad Sci, Aerosp Informat Res Inst, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China 5.Southwest Univ, Chongqing Engn Res Ctr Remote Sensing Big Data App, Sch Geog Sci, Chongqing, Peoples R China 6.Hangzhou Normal Univ, Inst Remote Sensing & Geosci, Key Lab Urban Wetlands & Reg Change, Hangzhou 311121, Peoples R China 7.Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tu, Zhiqin,Sun, Yuan,Wu, Chaoyang,et al. Long-term dynamics of peak photosynthesis timing and environmental controls in the Tibetan Plateau monitored by satellite solar-induced chlorophyll fluorescence[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2024,17(1):22. |
| APA | Tu, Zhiqin,Sun, Yuan,Wu, Chaoyang,Ding, Zhi,&Tang, Xuguang.(2024).Long-term dynamics of peak photosynthesis timing and environmental controls in the Tibetan Plateau monitored by satellite solar-induced chlorophyll fluorescence.INTERNATIONAL JOURNAL OF DIGITAL EARTH,17(1),22. |
| MLA | Tu, Zhiqin,et al."Long-term dynamics of peak photosynthesis timing and environmental controls in the Tibetan Plateau monitored by satellite solar-induced chlorophyll fluorescence".INTERNATIONAL JOURNAL OF DIGITAL EARTH 17.1(2024):22. |
入库方式： OAI收割
来源：地理科学与资源研究所
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