Impact of Snowpack on the Land Surface Phenology in the Tianshan Mountains, Central Asia
文献类型:期刊论文
作者 | Yang, Tao6; Li, Qian4,5; Zou, Qiang6; Hamdi, Rafiq3; Cui, Fengqi2; Li, Lanhai1,4,5 |
刊名 | REMOTE SENSING |
出版日期 | 2022-07-01 |
卷号 | 14期号:14页码:14 |
ISSN号 | 2072-4292 |
关键词 | snow mass snow cover fraction land surface phenology Tianshan Mountains |
DOI | 10.3390/rs14143462 |
英文摘要 | The accumulation and ablation processes of seasonal snow significantly affect the land surface phenology in a mountainous ecosystem. However, the ability of snow to regulate the alpine land surface phenology in the arid regions is not well described in the context of climate change. The impact of snowpack changes on land surface phenology and its driving factors were investigated in the Tianshan Mountains using the land surface phenology metrics derived from satellited products and a snow dataset from downscaled regional climate model simulations covering the period from 1983 to 2015. The results demonstrated that the annual mean start of growing season (SOS) and length of growing season (LOS) experienced a significant (p < 0.05) decrease and increase with a rate of -2.45 days/decade and 2.98 days/decade, respectively. The significantly advanced SOS and increased LOS were mainly seen in the Western Tianshan Mountains and Ili Valley regions with elevations from 2500 to 3500 m a.s.l and below 3000 m a.s.l, respectively. During the early spring, the significant decline in snow cover fraction (SCF) could advance the SOS. In contrast, snowmelt amount and annual maximum snow water equivalent (SWE) have an almost equally substantial positive correlation with annual maximum vegetation greenness. In particular, the SOS of grassland was the most sensitive to variations of snow cover fraction during early spring than that of other vegetation types, and their strong relationship was mainly located at elevations from 1500 to 2500 m a.s.l. Its greenness was significantly controlled by the annual maximum snow water equivalent in all elevation bands. Both decreased SCF and increased temperature in the early spring caused a significant advance of the SOS, consequently prolonging the LOS. Meanwhile, more SWE and snowmelt amount could significantly promote vegetation greenness by regulating the soil moisture. The results can improve the understanding of the snow ecosystem services in the alpine regions under climate change. |
WOS关键词 | CLIMATE-CHANGE ; VEGETATION PHENOLOGY ; TIBETAN PLATEAU ; TIEN-SHAN ; POTENTIAL IMPACTS ; SPRING PHENOLOGY ; COVER ; PATTERNS ; TIME ; PRECIPITATION |
资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences[XDA23090303] ; project of Applications for network security and informatization, CAS[CAS-WX2021SF-010604] ; projects of the Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0902] ; China Postdoctoral Science Foundation[2021M703132] ; Pan-Third Pole Environment Study for a Green Silk Road (Pan-TPE)[XDA2004030202] |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
语种 | 英语 |
出版者 | MDPI |
WOS记录号 | WOS:000833259900001 |
资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences ; project of Applications for network security and informatization, CAS ; projects of the Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Postdoctoral Science Foundation ; Pan-Third Pole Environment Study for a Green Silk Road (Pan-TPE) |
源URL | [http://ir.imde.ac.cn/handle/131551/56764] |
专题 | 中国科学院水利部成都山地灾害与环境研究所 |
通讯作者 | Li, Lanhai |
作者单位 | 1.Chinese Acad Sci, Res Ctr Ecol & Environm Cent Asia, Urumqi 830011, Peoples R China 2.Univ Ghent, Dept Geog, B-9000 Ghent, Belgium 3.Royal Meteorol Inst, Meteorol & Climatol Res Dept, B-1180 Brussels, Belgium 4.Chinese Acad Sci, Ili Stn Watershed Ecosyst Res, Yili 835800, Peoples R China 5.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China 6.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Tao,Li, Qian,Zou, Qiang,et al. Impact of Snowpack on the Land Surface Phenology in the Tianshan Mountains, Central Asia[J]. REMOTE SENSING,2022,14(14):14. |
APA | Yang, Tao,Li, Qian,Zou, Qiang,Hamdi, Rafiq,Cui, Fengqi,&Li, Lanhai.(2022).Impact of Snowpack on the Land Surface Phenology in the Tianshan Mountains, Central Asia.REMOTE SENSING,14(14),14. |
MLA | Yang, Tao,et al."Impact of Snowpack on the Land Surface Phenology in the Tianshan Mountains, Central Asia".REMOTE SENSING 14.14(2022):14. |
入库方式: OAI收割
来源:成都山地灾害与环境研究所
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