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Divergent leaf senescence changes in meadows, steppes, and cultivated vegetation on the Qinghai-Tibetan Plateau

文献类型：期刊论文

作者Zhu, Jiang3; Liu, Wei1,4; Sun, Qingling3; Li, Baolin1,2; Wu, Pinzhen3; Zhao, Xuetong3; Zhu, Siyu3; Li, Qiqi3
刊名GLOBAL ECOLOGY AND CONSERVATION
出版日期2025-12-01
卷号64页码:e03996
关键词Autumn phenology Vegetation type Temporal change Ground observation Qinghai-Tibetan Plateau
DOI10.1016/j.gecco.2025.e03996
产权排序3
文献子类Article
英文摘要Temporal changes in autumn leaf senescence dates and their drivers across meadows, steppes, and cultivated vegetation on the Qinghai-Tibetan Plateau (QTP) remain poorly understood. Using long-term ground observation data from 12 sites, we analyzed interannual change trends in leaf senescence date and quantified the influences of climatic factors (i.e., temperature, precipitation, and sunshine duration), soil moisture, and spring phenology on its shifts. Meadows showed a significant delaying trend (0.891 days/year), mainly driven by substantial increases in air temperature and precipitation during the growing season, particularly in the late season. Steppes exhibited an overall insignificant delaying trend (0.214 days/year), where the delaying effects of increased precipitation and reduced sunshine duration were partly offset by the late-season soil moisture decline. In cultivated vegetation, a slight advance in leaf senescence date (-0.108 days/ year) was primarily caused by earlier spring green-up date, supplemented by increased temperature and precipitation during the growing season, which led plants to grow earlier and complete their life cycles sooner. Climatic influences were stronger in the late season for meadows but greater in the early season for steppes. Compared with meadows and steppes, spring phenology had the strongest effect on the timing of leaf senescence in cultivated vegetation. These findings advance our understanding of vegetation phenological shifts on the QTP and highlight the necessity of incorporating the notable differences across vegetation types into both phenological models and ecosystem management practices.
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WOS关键词AUTUMN PHENOLOGY ; GROWING-SEASON ; CLIMATE-CHANGE ; WHEAT YIELD ; TEMPERATURE ; RESPONSES ; DYNAMICS ; DATE ; PRODUCTIVITY ; ECOSYSTEMS
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001633414800003
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/219392]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Sun, Qingling
作者单位1.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Sun Yat Sen Univ, Guangdong Prov Data Ctr Terr & Marine Ecosyst Carb, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change, Zhuhai 519082, Guangdong, Peoples R China;
4.Natl Forestry & Grassland Adm, Acad Forest Inventory & Planning, Beijing 100013, Peoples R China;
推荐引用方式
GB/T 7714		 Zhu, Jiang,Liu, Wei,Sun, Qingling,et al. Divergent leaf senescence changes in meadows, steppes, and cultivated vegetation on the Qinghai-Tibetan Plateau[J]. GLOBAL ECOLOGY AND CONSERVATION,2025,64:e03996.
APA Zhu, Jiang.,Liu, Wei.,Sun, Qingling.,Li, Baolin.,Wu, Pinzhen.,...&Li, Qiqi.(2025).Divergent leaf senescence changes in meadows, steppes, and cultivated vegetation on the Qinghai-Tibetan Plateau.GLOBAL ECOLOGY AND CONSERVATION,64,e03996.
MLA Zhu, Jiang,et al."Divergent leaf senescence changes in meadows, steppes, and cultivated vegetation on the Qinghai-Tibetan Plateau".GLOBAL ECOLOGY AND CONSERVATION 64(2025):e03996.

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来源：地理科学与资源研究所

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