| Permafrost degradation services for Arctic greening | |
| Shijin, Wang1; Xiaoqing, Peng2 | |
| 2023-08 | |
| Online publication date | 2023-05 |
| Source Publication | CATENA Impact Factor & Quartile |
| ISSN | 0341-8162 |
| Volume | 229 |
| page numbers | 9 |
| Abstract | As an important component of the climate system, permafrost responds significantly to climate change, and its impact on the ecosystem cannot be ignored. In this study, we analyzed the temporal and spatial variation trends of the normalized difference vegetation index (NDVI) in Arctic permafrost regions and revealed the correlation between the active-layer thickness (ALT), soil temperature, and NDVI change. Using the partial correlation method, we assessed the ecological regulation service of permafrost to the ecosystem. The results showed that both the average annual maximum and summer NDVI values in the Arctic region followed a significant increasing trend from 1982 to 2015. The average correlation coefficient (ACC) between Arctic NDVI and ALT was 0.35, followed by the ACC (0.33) between NDVI and soil temperature at 7-28 cm depth, and had a lower ACC (0.31) at 0-7 cm ALT. When the precipitation and snow water equivalent (SWE) remained unchanged, the partial correlation between NDVI and ALT was 0.711, which was a significant positive correlation. It also showed that permafrost degradation was the dominant factor controlling Arctic NDVI increase, whereas precipitation and SWE had little effect. The study revealed the impact of permafrost on NDVI change, deepened our understanding of the importance of permafrost degradation for ecosystem services, and effectively filled the gap that tundra ecosystem services value has been ignored in the global ecological service value assessment. |
| Keyword | Permafrost degradation NDVI change Ecosystem regulation service Arctic greening |
| Publisher | ELSEVIER |
| DOI | 10.1016/j.catena.2023.107209 |
| Indexed By | SCIE |
| Language | 英语 |
| WOS Research Area | Geology ; Agriculture ; Water Resources |
| WOS Subject | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| WOS ID | WOS:001004980800001 |
| Original Document Type | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/529909 |
| Collection | 兰州大学 |
| Corresponding Author | Shijin, Wang; Xiaoqing, Peng |
| Affiliation | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Yulong Snow Mt Cryosphere & Sustainable Dev Field, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; 2.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Lanzhou, Peoples R China |
| Recommended Citation GB/T 7714 | Shijin, Wang,Xiaoqing, Peng. Permafrost degradation services for Arctic greening[J]. CATENA,2023,229. |
| APA | Shijin, Wang,&Xiaoqing, Peng.(2023).Permafrost degradation services for Arctic greening.CATENA,229. |
| MLA | Shijin, Wang,et al."Permafrost degradation services for Arctic greening".CATENA 229(2023). |
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