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首页> 外文期刊>International Journal of Biometeorology >Multiple phenological responses to climate change among 42 plant species in Xi’an, China
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Multiple phenological responses to climate change among 42 plant species in Xi’an, China

机译：西安市42种植物对气候变化的多种物候响应

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摘要

Phenological data of 42 woody plants in a temperate deciduous forest from the Chinese Phenological Observation Network (CPON) and the corresponding meteorological data from 1963 to 2011 in Xi’an, Shaanxi Province, China were collected and analyzed. The first leaf date (FLD), leaf coloring date (LCD) and first flower date (FFD) are revealed as strong biological signals of climatic change. The FLD, LCD and FFD of most species are sensitive to average temperature during a certain period before phenophase onset. Regional precipitation also has a significant impact on phenophases of about half of the species investigated. Affected by climate change, the FLD and FFD of these species have advanced by 5.54 days and 10.20 days on average during 2003–2011 compared with the period 1963–1996, respectively. Meanwhile, the LCD has delayed by 10.59 days, and growing season length has extended 16.13 days. Diverse responses of phenology commonly exist among different species and functional groups during the study period. Especially for FFD, the deviations between the above two periods ranged from −20.68 to −2.79 days; biotic pollination species showed a significantly greater advance than abiotic pollination species. These results were conducive to the understanding of possible changes in both the structure of plant communities and interspecific relationships in the context of climate change.
机译：收集并分析了中国物候观测网（CPON）的温带落叶林中42种木本植物的物候数据以及1963年至2011年相应的气象数据。初叶日期（FLD），叶着色日期（LCD）和初花日期（FFD）被揭示为强烈的气候变化生物信号。大多数物种的FLD，LCD和FFD在物候开始前的一定时期内对平均温度敏感。区域降水对大约一半所调查物种的表相也有重大影响。受气候变化的影响，2003-2011年这些物种的FLD和FFD平均提前了1963-1996年，分别增长了5.54天和10.20天。同时，LCD延迟了10.59天，生长季节的长度延长了16.13天。在研究期间，不同物种和功能组之间普遍存在物候学的不同反应。特别是对于FFD，以上两个时段之间的偏差范围为-20.68至-2.79天;生物授粉物种比非生物授粉物种具有更大的进步。这些结果有助于了解气候变化背景下植物群落结构和种间关系的可能变化。

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