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Divergent changes of the elevational synchronicity in vegetation spring phenology in North China from 2001 to 2017 in connection with variations in chilling

文献类型：期刊论文

作者Dai, Junhu1,4,5; Zhu, Mengyao1,4; Mao, Wei2; Liu, Ronggao4; Wang, Huanjiong4; Alatalo, Juha Mikael3; Tao, Zexing4; Ge, Quansheng1,4
刊名INTERNATIONAL JOURNAL OF CLIMATOLOGY
出版日期2021-05-13
页码13
关键词chilling mountain phenology remote sensing start of growing season temperate broadleaf deciduous forest
ISSN号0899-8418
DOI10.1002/joc.7170
通讯作者Dai, Junhu(daijh@igsnrr.ac.cn) ; Ge, Quansheng(geqs@igsnrr.ac.cn)
英文摘要Mountain ecosystems are sensitive to climate change, and vegetation phenology provides one of the best signals to exemplify ecosystem responses to climate change. Vegetation phenology of mountain ecosystems is usually characterized with an elevational pattern, with the growing season starts earlier and ends later in lower versus higher elevations. With climate change, this elevational gradient of vegetation phenology is likely to shift as well. However, both the patterns and the underlying driving forces for potential changes in this elevational gradient of vegetation phenology are still unclear. Here, we used 500-m resolutioned normalized difference vegetation index (NDVI) data from Moderate Resolution Imaging Spectroradiometer (MODIS) for the period of 2001 to 2017 to investigate changes in the start of growing season (SOS) along the elevational gradient for six mountains in northern China dominated by broadleaf deciduous forests. We found that while SOS consistently advanced for most of the pixels, the elevational lapse rate of SOS (S-E) showed various trends for different mountains. Specifically, S-E showed a significant (p-value < .05) decreasing trend for the two southernmost mountains, indicating an increasing elevational synchronization in SOS. However, such phenological synchronization was not found in other temperate mountains. As warming has caused relatively consistent increases in heat forcing across different elevations and among different mountains but has led to highly various changes in chilling hours between high and low elevations, we suggested that the distinctive pattern in elevational synchronicity of spring phenology between southern and northern mountains in temperate China was primarily due to their different recent changes in chilling hours. Our work provides a novel key hypothesis for explaining the divergent changes in elevational gradients of vegetation phenology that can be tested in other regions for mountain ecosystems.
WOS关键词LEAF BUD BURST ; CLIMATE-CHANGE ; TEMPERATURE SENSITIVITY ; PLANT PHENOLOGY ; TREE PHENOLOGY ; CARBON UPTAKE ; SHIFTS ; VARIABILITY ; ECOSYSTEMS ; MODELS
资助项目National Key R&D Program of China[2018YFA0606102] ; National Natural Science Foundation of China[41771056] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA19020303]
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000649855800001
出版者WILEY
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/161568]  
专题陆地表层格局与模拟院重点实验室_外文论文
通讯作者Dai, Junhu; Ge, Quansheng
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Hainan Univ, Coll Ecol & Environm, Haikou, Hainan, Peoples R China
3.Qatar Univ, Environm Sci Ctr, Doha, Qatar
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China
5.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad, Pakistan
推荐引用方式
GB/T 7714		 Dai, Junhu,Zhu, Mengyao,Mao, Wei,et al. Divergent changes of the elevational synchronicity in vegetation spring phenology in North China from 2001 to 2017 in connection with variations in chilling[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2021:13.
APA Dai, Junhu.,Zhu, Mengyao.,Mao, Wei.,Liu, Ronggao.,Wang, Huanjiong.,...&Ge, Quansheng.(2021).Divergent changes of the elevational synchronicity in vegetation spring phenology in North China from 2001 to 2017 in connection with variations in chilling.INTERNATIONAL JOURNAL OF CLIMATOLOGY,13.
MLA Dai, Junhu,et al."Divergent changes of the elevational synchronicity in vegetation spring phenology in North China from 2001 to 2017 in connection with variations in chilling".INTERNATIONAL JOURNAL OF CLIMATOLOGY (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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