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المؤلفDai J.
المؤلفXu Y.
المؤلفWang H.
المؤلفAlatalo J.
المؤلفTao Z.
المؤلفGe Q.
تاريخ الإتاحة2020-03-18T10:47:18Z
تاريخ النشر2019
اسم المنشورInternational Journal of Biometeorology
المصدرScopus
الرقم المعياري الدولي للكتاب207128
معرّف المصادر الموحدhttp://dx.doi.org/10.1007/s00484-017-1489-8
معرّف المصادر الموحدhttp://hdl.handle.net/10576/13466
الملخصContinuous long-term temperature sensitivity (ST) of leaf unfolding date (LUD) and main impacting factors in spring in the period 1978–2014 for 40 plant species in Mudanjiang, Heilongjiang Province, Northeast China, were analyzed by using observation data from the China Phenological Observation Network (CPON), together with the corresponding meteorological data from the China Meteorological Data Service Center. Temperature sensitivities, slopes of the regression between LUD and mean temperature during the optimum preseason (OP), were analyzed using 15-year moving window to determine their temporal trends. Major factors impacting ST were then chosen and evaluated by applying a random sampling method. The results showed that LUD was sensitive to mean temperature in a defined period before phenophase onset for all plant species analyzed. Over the period 1978–2014, the mean ST of LUD for all plant species was − 3.2 ± 0.49 days °C−1. The moving window analysis revealed that 75% of species displayed increasing ST of LUD, with 55% showing significant increases (P < 0.05). ST for the other 25% exhibited a decreasing trend, with 17% showing significant decreases (P < 0.05). On average, ST increased by 16%, from − 2.8 ± 0.83 days °C−1 during 1980–1994 to − 3.30 ± 0.65 days °C−1 during 2000–2014. For species with later LUD and longer OP, ST tended to increase more, while species with earlier LUD and shorter OP tended to display a decreasing ST. The standard deviation of preseason temperature impacted the temporal variation in ST. Chilling conditions influenced ST for some species, but photoperiod limitation did not have significant or coherent effects on changes in ST.
راعي المشروعThis research was supported by the National Natural Science Foundation of China (No. 41601047, 41771056) and the National Major Instruments Development Project (No.41427805).
اللغةen
الناشرSpringer New York LLC
الموضوعLeaf unfolding date
Northeast China
Plant phenology
Temperature impact
Temperature sensitivity
العنوانVariations in the temperature sensitivity of spring leaf phenology from 1978 to 2014 in Mudanjiang, China
النوعArticle
الصفحات569-577
رقم العدد5
رقم المجلد63
dc.accessType Abstract Only


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