Response of spring vegetation phenology to soil freeze-thaw state in the Northern Hemisphere from 2016 to 2022
文献类型：期刊论文
| 作者 | Yang, Ting1,2; Cong, Nan3,4 |
| 刊名 | FRONTIERS IN FORESTS AND GLOBAL CHANGE
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 6页码:9 |
| 关键词 | soil freeze-thaw the start of the season vegetation remote sensing climate change |
| DOI | 10.3389/ffgc.2023.1332734 |
| 通讯作者 | Cong, Nan(congnan@pku.edu.cn) |
| 英文摘要 | IntroductionThe research on spring vegetation phenology is crucial to the investigation of terrestrial ecosystems and climate change. Changes in the soil freeze-thaw (F/T) lead to variations in soil moisture, directly impacting vegetation activity. The start of the season (SOS) is the initial and important phenophase for vegetation activity, and thus, this highlights the need to understand the response of spring vegetation phenology to soil F/T state.MethodsThis study first comprehensively investigates the consistency of the SOS and three soil F/T state indexes, i.e., the start day of the F/T state (SFT), the end day of the F/T state (EFT), and the length of days of the F/T state (LFT) via satellite data source.ResultsResults reveal that: (1) All 3 F/T state indexes impact SOS values, and the EFT outperforms others. The correlation coefficients between EFT and SOS gain around 3.07%. (2) A temporal overlap between SOS and EFT occurs in May, suggesting that parts of the plants begin active growth before average temperatures reach above 0 degrees. (3) Small differences of SOS and EFT exist between savannas, and croplands, with an average difference of less than 10 days; in contrast, the largest differences occur in broadleaf evergreen forests. The results can fill the knowledge gap on the response of spring vegetation phenology to soil F/T state, and help to investigate the reasons for the nonlinear dynamics of SOS under global warming. |
| WOS关键词 | GREEN-UP DATE ; CHINA ; IMPACTS ; WATER ; SMAP |
| 资助项目 | National Key Research & Development Program[2018YFA0606101] ; National Natural Science Foundation of China[42101376] ; National Natural Science Foundation of China[42071133] |
| WOS研究方向 | Environmental Sciences & Ecology ; Forestry |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:001133006500001 |
| 资助机构 | National Key Research & Development Program ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/201295]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Cong, Nan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, CAS Engn Lab Yellow River Delta Modern Agr, Beijing, Peoples R China 2.Shandong Dongying Inst Geog Sci, Dongying, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Lhasa Plateau Ecosyst Res Stn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Ting,Cong, Nan. Response of spring vegetation phenology to soil freeze-thaw state in the Northern Hemisphere from 2016 to 2022[J]. FRONTIERS IN FORESTS AND GLOBAL CHANGE,2023,6:9. |
| APA | Yang, Ting,&Cong, Nan.(2023).Response of spring vegetation phenology to soil freeze-thaw state in the Northern Hemisphere from 2016 to 2022.FRONTIERS IN FORESTS AND GLOBAL CHANGE,6,9. |
| MLA | Yang, Ting,et al."Response of spring vegetation phenology to soil freeze-thaw state in the Northern Hemisphere from 2016 to 2022".FRONTIERS IN FORESTS AND GLOBAL CHANGE 6(2023):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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