Effects of temperature, phase type and timing, location, and human density on plant phenological responses in Europe
Effects of temperature, phase type and timing, location, and human density on plant phenological responses in Europe
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DOI：
10.3354/cr00818
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发表时间：
2009-01-01
期刊：
影响因子：
1.1
通讯作者：
Menzel, Annette
中科院分区：
文献类型：
--
作者：
Estrella, Nicole;Sparks, Tim H.;Menzel, Annette
物候开始日期与温度密切相关。在这项研究中，我们分析了在COST 725行动“为气候学应用建立欧洲物候数据平台”期间收集的物候数据集，其中包含1971-2000年间欧洲超过36000个物候时间序列。我们结合欧洲高分辨率气候网格，分析了物候期的温度响应、它们的区域差异，以及当地温度大小和物候趋势之间的关系。作为外部因素，我们考察了人口密度对物候的影响。我们的分析证实了欧洲一年生和多年生植物的行为差异。多年生植物的平均温度响应(-4.2 d℃-1)显著大于一年生农作物的平均温度响应(-3.0 d℃-1)。果树和落叶树叶展开趋势与温度的相关性最大(r分别为-0.63和-0.46)。地理坐标(纬度和经度)对阶段组的平均开始时间只有轻微的影响；然而，海拔的加入改善了某些组的模型。
Phenological onset dates are closely linked to temperature. In this study, we analysed a phenological dataset collected during the COST 725 Action 'Establishing a European phenological data platform for climatological applications', which contained more than 36 000 phenological time series for Europe covering 1971-2000. We analysed the temperature response of the phenological phases, their regional differences, and the relationship between the sizes of the local temperature and phenology trends in connection with a high-resolution climate grid of Europe. As an external factor, we examined the influence of human population density on phenology. Our analyses confirm differences in behaviour between annual and perennial plants in Europe. The average temperature response of perennial plants was significantly greater (-4.2 d degrees C-1) than that of annual agricultural crops (-3.0 d degrees C-1). The correlation between temperature and phenology trends was greatest for leaf unfolding of fruit trees and deciduous trees (r = -0.63 and -0.46, respectively). The geographic coordinates (latitude and longitude) had only a modest influence on the mean onset of the groups of phases; however, inclusion of altitude improved the models for some groups.