Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US
文献类型：期刊论文
| 作者 | Liu, Ying2,3; Wu, Chaoyang2,3; Wang, Xiaoyue2,3; Jassal, Rachhpal S.1; Gonsamo, Alemu4 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 207页码:13 |
| 关键词 | Phenology Maximum vegetation growth Climate change Remote sensing NDVI |
| ISSN号 | 0921-8181 |
| DOI | 10.1016/j.gloplacha.2021.103657 |
| 通讯作者 | Wu, Chaoyang(wucy@igsnrr.ac.cn) |
| 英文摘要 | Vegetation phenology and peak growth are important indicators reflecting the response of ecosystems to global changes, yet the trends in peak vegetation growth and its drivers have not been well analyzed across different ecosystems. Here, we used time series of satellite-derived Normalized Difference Vegetation Index (NDVI) (1985-2015) to track recent changes in maximum vegetation growth (the maximum of NDVI (NDVImax) and the peak of growing season (POS)) in the continental US, and explored their responses to both climatic drivers (i.e. temperature, precipitation and cloud cover) and atmospheric changes (i.e. nitrogen (N) deposition and atmospheric CO2 concentration [CO2]). We found that precipitation had the greatest impact on NDVImax, accounting for 31.7% of vegetated area, followed by cloud cover (17.1%), temperature (16.4%), [CO2] (13.7%), and N deposition (10.4%), respectively. However, temperature showed the largest contribution to POS change in about 41.9% of vegetated areas, followed by precipitation (18.6%), cloud cover (15.0%), N deposition (6.7%) and [CO2] (5.9%), respectively. Interestingly, the effects of cloud cover highly depended on moisture regime, that is, more cloud cover was associated with a delayed POS and a decreased NDVImax in wetter regions, but could advance POS and increase NDVImax in dry areas. In addition, we also found that an earlier POS was accompanied by a higher NDVImax in most ecosystems, but with lower NDVImax in arid ecosystems. These results reveal the control of both climatic and atmospheric drivers on peak growth, and consequently are of great significance for understanding of the responses and feedbacks of vegetation to global change and improve models of terrestrial ecosystem carbon cycle. |
| WOS关键词 | GROSS PRIMARY PRODUCTIVITY ; PLANT PHENOLOGY ; SPRING PHENOLOGY ; INTERANNUAL VARIABILITY ; NORTHERN-HEMISPHERE ; CARBON UPTAKE ; ECOLOGICAL RESPONSES ; SEMIARID ECOSYSTEMS ; NITROGEN ADDITION ; SEASONAL CYCLE |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000709727100005 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/167324]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wu, Chaoyang |
| 作者单位 | 1.Univ British Columbia, 136-2357 Main Mall, Vancouver, BC V6T 1Z4, Canada 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.McMaster Univ, Sch Earth Environm & Soc, Hamilton, ON, Canada |
| 推荐引用方式 GB/T 7714 | Liu, Ying,Wu, Chaoyang,Wang, Xiaoyue,et al. Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US[J]. GLOBAL AND PLANETARY CHANGE,2021,207:13. |
| APA | Liu, Ying,Wu, Chaoyang,Wang, Xiaoyue,Jassal, Rachhpal S.,&Gonsamo, Alemu.(2021).Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US.GLOBAL AND PLANETARY CHANGE,207,13. |
| MLA | Liu, Ying,et al."Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US".GLOBAL AND PLANETARY CHANGE 207(2021):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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