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Trends in Flowering Phenology of Herbaceous Plants and Its Response to Precipitation and Snow Cover on the Qinghai-Tibetan Plateau from 1983 to 2017
Jiang, Yuhao1,2; Li, Baolin1,2,3; Yuan, Yecheng1; Sun, Qingling4; Zhang, Tao5; Liu, Yan1,2; Li, Ying1,2; Li, Rui1,2; Li, Fei6
2021-07-01
Source PublicationSUSTAINABILITY
Volume13Issue:14Pages:21
Corresponding AuthorLi, Baolin(libl@lreis.ac.cn)
AbstractBased on limited controlled experiments, both advanced and delayed shifts in flowering phenology induced by precipitation and snow cover have been reported on the Qinghai-Tibetan Plateau (QTP). To clarify the impact of precipitation and snow cover on flowering phenology, we conducted a comprehensive statistical analysis of the temporal change in flowering phenology and its responses to precipitation and snow cover changes using regression models built on the largest collection of ground phenological observation data on the QTP. We found that first flowering date (FFD) for the early-flowering time series significantly advanced at the rate of -0.371 +/- 0.149 days/year (p < 0.001), whereas FFD mid-to-late-flowering time series showed no trend at the rate of 0.158 +/- 0.193 days/year (p = 0.108). Cumulative pre-season precipitation regressed with FFD positively for early-flowering time series, with the explained variation ranging from 11.7 to 49.4% over different pre-season periods. The negative impact of precipitation on flowering phenology is unexpected, because an increase in precipitation should not hamper plant growth in the semi-arid and arid environments on the QTP. However, precipitation was found to be inversely correlated with temperature. Thus, it is likely that temperature, and not precipitation, regulated flowering phenology over the study period. No relationship was found between FFD and snow-cover melt date or duration. This result indicated that snow cover may not affect flowering phenology significantly, which may be because plant flowering time was much later than the snow-cover melt date on the QTP. These findings contrast the results of controlled experiments on the QTP, which showed that precipitation regulated flowering phenology, and with other studies that showed that snow-cover melting time determined flowering dates of early-flowering species in high latitude and Arctic zones in Europe and North America, where the low-temperature environment is similar to the QTP. These findings can improve flowering phenology models, assist in the prediction of phenological responses of herbaceous plants to climate change, and forecast changes in the structure and function of the grassland ecosystem on the QTP.
Keywordflowering phenology shift functional groups precipitation snow cover Qinghai-Tibetan Plateau
DOI10.3390/su13147640
WOS KeywordCLIMATE-CHANGE ; REPRODUCTIVE PHENOLOGY ; SPRING PHENOLOGY ; GREEN-UP ; ZONE TREES ; TEMPERATURE ; GROWTH ; WINTER ; SHIFTS ; SEQUENCES
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Plan of China[2016YFC0500205] ; National Natural Science Foundation of China[41701475]
Funding OrganizationNational Key Research and Development Plan of China ; National Natural Science Foundation of China
WOS Research AreaScience & Technology - Other Topics ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS IDWOS:000676963200001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/164796
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLi, Baolin
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China
4.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519082, Peoples R China
5.Iowa State Univ, Dept Geol & Atmospher Sci, Ames, IA 50011 USA
6.Environm Informat Ctr Qinghai Prov, Xining 810007, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Yuhao,Li, Baolin,Yuan, Yecheng,et al. Trends in Flowering Phenology of Herbaceous Plants and Its Response to Precipitation and Snow Cover on the Qinghai-Tibetan Plateau from 1983 to 2017[J]. SUSTAINABILITY,2021,13(14):21.
APA Jiang, Yuhao.,Li, Baolin.,Yuan, Yecheng.,Sun, Qingling.,Zhang, Tao.,...&Li, Fei.(2021).Trends in Flowering Phenology of Herbaceous Plants and Its Response to Precipitation and Snow Cover on the Qinghai-Tibetan Plateau from 1983 to 2017.SUSTAINABILITY,13(14),21.
MLA Jiang, Yuhao,et al."Trends in Flowering Phenology of Herbaceous Plants and Its Response to Precipitation and Snow Cover on the Qinghai-Tibetan Plateau from 1983 to 2017".SUSTAINABILITY 13.14(2021):21.
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