Divergent influences of soil moisture changes on leaf senescence dates of herbaceous plants on the Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Sun, Qingling1; Zhao, Xuetong1; Zhu, Jiang1; Li, Baolin3,4; Li, Qiqi1; Zhu, Siyu1; Wu, Pinzhen1; Liu, Liyang2 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2024-12-25 |
| 卷号 | N/A |
| 关键词 | Soil moisture Autumn phenology Herbaceous plant Ground observation Climate change |
| DOI | 10.1007/s11104-024-07152-1 |
| 产权排序 | 2 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Background and aimsUnderstanding of the influences of soil moisture changes on plant phenological shifts on the Qinghai-Tibetan Plateau (QTP) is insufficient mainly because previous studies focused on the climatic factors. We explored the role of soil moisture in regulating plant autumn phenology on the QTP.MethodsBased on long-term ground observations of soil moisture, plant phenology, and meteorology, temporal and spatial changes in soil moisture and leaf senescence dates (LSD) were analyzed using ordinary least squares regression and a meta-analysis procedure. Influences of soil moisture changes on the LSD shifts were assessed through correlation analysis and support vector machine, and also compared with those of air temperature and precipitation.ResultsNonsignificant interannual changes in soil moisture were observed, and LSD significantly delayed at a rate of 2.7 days/decade. Spatial changes of LSD were more correlated with site elevation and air temperature, and soil moisture and precipitation showed insignificant negative impacts. However, correlations between annual LSD and average soil moisture were mainly positive. Soil moisture and precipitation showed greater importance in regulating the LSD of sedges and grasses, whereas temperature exerted a larger influence on the LSD of forbs. Precipitation showed higher importance in regulating the interannual shifts in LSD, while temperature played a more important role in determining the spatial variations.ConclusionSoil moisture had divergent influences on the temporal and spatial shifts in LSD of different plant functional groups on the QTP. Overall, soil moisture was outweighed by temperature and precipitation in regulating autumn phenological shifts. However, soil moisture may become increasingly important in the future and forbs are expected to be more competitive if the QTP becomes warmer and drier, which will bring challenges in grassland management and utilization on the QTP. |
| WOS关键词 | CLIMATE-CHANGE ; AUTUMN PHENOLOGY ; SPRING PHENOLOGY ; GROWING-SEASON ; PRODUCTIVITY ; PERMAFROST ; RESPONSES |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS记录号 | WOS:001382384900001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/210415]  |
| 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 | Li, Baolin |
| 作者单位 | 1.Sun Yat sen Univ, Guangdong Prov Data Ctr Terr & Marine Ecosyst Carb, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change & Nat Disast, Zhuhai 519082, Guangdong, Peoples R China 2.Univ Paris Saclay, Lab Sci Climat & Environm, LSCE, IPSL,CEA,CNRS,UVSQ, F-91191 Gif Surur Yvette, France 3.Univ Chinese Acad Sci, 11A Datun Rd, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Qingling,Zhao, Xuetong,Zhu, Jiang,et al. Divergent influences of soil moisture changes on leaf senescence dates of herbaceous plants on the Qinghai-Tibetan Plateau[J]. PLANT AND SOIL,2024,N/A. |
| APA | Sun, Qingling.,Zhao, Xuetong.,Zhu, Jiang.,Li, Baolin.,Li, Qiqi.,...&Liu, Liyang.(2024).Divergent influences of soil moisture changes on leaf senescence dates of herbaceous plants on the Qinghai-Tibetan Plateau.PLANT AND SOIL,N/A. |
| MLA | Sun, Qingling,et al."Divergent influences of soil moisture changes on leaf senescence dates of herbaceous plants on the Qinghai-Tibetan Plateau".PLANT AND SOIL N/A(2024). |
入库方式： OAI收割
来源：地理科学与资源研究所
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