Altitude explains insignificant autumn phenological changes across regions with large topography relief in the Tibetan Plateau
文献类型：期刊论文
| 作者 | Cong, Nan1; Du, Zhiyong1,2; Zheng, Zhoutao1; Zhao, Guang1; Sun, Dongqi3; Zu, Jiaxing4; Zhang, Yangjian2,5 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-04-15 |
| 卷号 | 921页码:11 |
| ISSN号 | 0048-9697 |
| 关键词 | Alpine vegetation phenology ELR_EGS Tibetan Plateau (TP) Altitude differentiation Inverse response to climate |
| DOI | 10.1016/j.scitotenv.2024.171088 |
| 通讯作者 | Zhang, Yangjian(zhangyj@igsnrr.ac.cn) |
| 英文摘要 | The start of the growing season (SGS) and the end of the growing season (EGS) are widely employed in global change studies to represent the spring and autumn phenology, respectively. Despite the Tibetan Plateau (TP) experiencing significant warming in recent decades, EGS has exhibited only slight changes. Previous studies have concentrated on exploring the environmental regulation of phenology, ignoring the distinctive influences of elevation. Therefore, a more in-depth investigation into the underlying mechanism is warranted. In this study, we investigate the variability of EGS among alpine vegetation regions at different elevations and conduct an analysis based on satellite data. Phenology data of alpine vegetation are extracted from SPOT NDVI dataset spanning from 1999 to 2018, using a piecewise-logistic-maximum-ratio method. We analyze the factors influencing EGS trends at different elevations. The results show that the overall insignificant variation in EGS is mainly attributed to altitude. With the altitude increasing, the annual mean EGS experiences a delay of 0.28 days/100 m below 3500 m, while it advances by 0.2 days/100 m above 3500 m. The opposing shift in elevation below and above 3500 m leads to this counteraction. Elevation emerges as the predominant factor influencing EGS trends, explaining the highest variations (38 %), followed by SGS (22 %) and precipitation (22 %). The elevation effect is most pronounced in areas with substantial topography fluctuations. Moreover, the elevation lapse rate of EGS (ELR_EGS) exhibits an opposite trend with growing season (GS) temperature and a similar trend with GS precipitation between the regions below and above 3500 m, ultimately linking to this counteraction. This study underscores elevation is a critical regulator of vegetation EGS responses to climatic changes over the TP, revealing significant spatial heterogeneities in these responses. |
| WOS关键词 | VEGETATION GROWING-SEASON ; LAND-SURFACE PHENOLOGY ; TIME-SERIES DATA ; GREEN-UP DATE ; CLIMATE-CHANGE ; SPRING PHENOLOGY ; PRIMARY PRODUCTIVITY ; ALPINE GRASSLANDS ; VARIABILITY ; CHINA |
| 资助项目 | National Natural Science Foundation of China[42071133] ; National Key Research & Development Program[2019YFA0607302] ; National Key Research & Development Program[2018YFA0606101] ; West Light Foundation of The Chinese Academy of Sciences |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001205858700001 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research & Development Program ; West Light Foundation of The Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/204455]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Yangjian |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Nanning Normal Univ, Key Lab Environm Change & Resources Use Beibu Gulf, Minist Educ, Nanning 530001, Peoples R China 5.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cong, Nan,Du, Zhiyong,Zheng, Zhoutao,et al. Altitude explains insignificant autumn phenological changes across regions with large topography relief in the Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,921:11. |
| APA | Cong, Nan.,Du, Zhiyong.,Zheng, Zhoutao.,Zhao, Guang.,Sun, Dongqi.,...&Zhang, Yangjian.(2024).Altitude explains insignificant autumn phenological changes across regions with large topography relief in the Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,921,11. |
| MLA | Cong, Nan,et al."Altitude explains insignificant autumn phenological changes across regions with large topography relief in the Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 921(2024):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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