Response of alpine vegetation function to climate change in the Tibetan Plateau: A perspective from solar-induced chlorophyll fluorescence
文献类型：期刊论文
| 作者 | Luo, Yiwen3,4; Ma, Ning; Zhang, Yongqiang; Zang, Chuanfu3; Szilagyi, Jozsef2; Tian, Jing; Wang, Longhao4; Xu, Zhenwu4; Tang, Zixuan4; Wei, Haoshan4 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-11-20 |
| 卷号 | 952页码:175845 |
| 关键词 | SIF Alpine plants Vegetation functional change Climatic drivers Tibetan Plateau |
| DOI | 10.1016/j.scitotenv.2024.175845 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Vegetation change in the Tibetan Plateau (TP) is a crucial indicator of climate change in alpine regions. Previous studies have reported an overall greening trend in the vegetation structure across the TP, especially in its northeastern part, in response to a warming climate. However, variations in the vegetation function and the possible drivers remain poorly understood. Considering the optimal temperature for plants in TP is usually higher than the current temperature, our hypothesis is the function and structure of alpine vegetation have changed synchronously over past few decades. To test this hypothesis, we analyzed satellite-observed solar-induced chlorophyll fluorescence (SIF) and leaf area index (LAI) in the Yellow River source (YRS) region in the northeastern TP to quantify the long-term trends in vegetation functional and structural states, respectively. The results suggest that from 1982 to 2018, SIF increased significantly in 77.71 % of the YRS area, resulting in a significant upward trend of 0.52 x 10(-3) mW m(- 2) nm(-1) sr(- 1) yr(- 1 )(p < 0.001) for the regional-mean SIF. This represents a 16.1 % increase in SIF, which is close in magnitude to the increase in LAI over the same period. The synchronous changes between vegetation function and structure suggest that improved greenness corresponds to a similar level of change in carbon uptake across YRS. Additionally, we used a multiple regression approach to quantify the contribution of climatic factors to SIF changes in YRS. Our analyses show that the increases in SIF were primarily driven by rising temperatures. Spatially, temperature dominated SIF changes in most parts of YRS, except for certain dry parts in the northern and western YRS, where precipitation had a greater impact. Our results are crucial for a comprehensive understanding of climate regulations on vegetation structure and function in high-elevation regions. |
| WOS关键词 | GROSS PRIMARY PRODUCTION ; ECOLOGICAL PROTECTION ; PHOTOSYNTHESIS ; CHINA ; AVAILABILITY ; PHENOLOGY ; DATASET ; REGION |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001310331700001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/207969]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Ma, Ning |
| 作者单位 | 1.Budapest Univ Technol & Econ, Dept Hydraul & Water Resources Engn, Budapest, Hungary 2.South China Normal Univ, Sch Geog, Guangzhou, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Yiwen,Ma, Ning,Zhang, Yongqiang,et al. Response of alpine vegetation function to climate change in the Tibetan Plateau: A perspective from solar-induced chlorophyll fluorescence[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,952:175845. |
| APA | Luo, Yiwen.,Ma, Ning.,Zhang, Yongqiang.,Zang, Chuanfu.,Szilagyi, Jozsef.,...&Wei, Haoshan.(2024).Response of alpine vegetation function to climate change in the Tibetan Plateau: A perspective from solar-induced chlorophyll fluorescence.SCIENCE OF THE TOTAL ENVIRONMENT,952,175845. |
| MLA | Luo, Yiwen,et al."Response of alpine vegetation function to climate change in the Tibetan Plateau: A perspective from solar-induced chlorophyll fluorescence".SCIENCE OF THE TOTAL ENVIRONMENT 952(2024):175845. |
入库方式： OAI收割
来源：地理科学与资源研究所
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