{"title":"青藏高原高寒草原春季物候对温度和降水敏感性的跨物种和空间权衡","authors":"Xiaoting Li, Wei Guo, Hao He, Hao Wang, Aimée Classen, Donghai Wu, Yixin Ma, Yunqiang Wang, Jin-Sheng He, Xiangtao Xu","doi":"10.1111/nph.70008","DOIUrl":null,"url":null,"abstract":"<p>\n \n </p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"246 2","pages":"554-566"},"PeriodicalIF":8.1000,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.70008","citationCount":"0","resultStr":"{\"title\":\"Trade-off between spring phenological sensitivities to temperature and precipitation across species and space in alpine grasslands over the Qinghai–Tibetan Plateau\",\"authors\":\"Xiaoting Li, Wei Guo, Hao He, Hao Wang, Aimée Classen, Donghai Wu, Yixin Ma, Yunqiang Wang, Jin-Sheng He, Xiangtao Xu\",\"doi\":\"10.1111/nph.70008\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>\\n \\n </p>\",\"PeriodicalId\":214,\"journal\":{\"name\":\"New Phytologist\",\"volume\":\"246 2\",\"pages\":\"554-566\"},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2025-03-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.70008\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"New Phytologist\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/nph.70008\",\"RegionNum\":1,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/2/24 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Phytologist","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/nph.70008","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/24 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
阐明高寒草原春季物候的气候驱动因素至关重要。然而，目前对春季物候对温度和降水敏感性（βT和βP）的统计估计可能存在偏差，而且它们在不同地点和物种之间的变异性尚未得到充分解释。我们对物种水平βT和βP的基准进行了统计推断，从历史记录和野外操作实验的观察中推断。利用最佳统计方法对青藏高原57个高寒草地的景观尺度βT和βP进行了分析。与手工实验结果相比，基于过程不可知回归的方法低估了βT 2.36-3.87 d°C - 1(54-88%)，而基于过程的物候模型拟合预测了相当的βT和βP。基于过程的βT和βP估计值在不同物种（R = - 0.94, P < 0.01）和不同地点（R = - 0.45, P < 0.01）之间呈负相关。在区域尺度上，βT与年平均气温呈正相关，βP与高程呈负相关。基于过程的模型拟合可以较好地估计春季物候对气候的敏感性。βT和βP之间的权衡关系决定了高寒草原物候敏感性在物种水平和地点水平上的变化，需要将其纳入未来物候变化的预测中。
Trade-off between spring phenological sensitivities to temperature and precipitation across species and space in alpine grasslands over the Qinghai–Tibetan Plateau
期刊介绍：
New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
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