DOI: 10.1111/gcb.12280
论文题名: Changes in the timing of hay cutting in Germany do not keep pace with climate warming
作者: Bock A. ; Sparks T.H. ; Estrella N. ; Menzel A.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 10 起始页码: 3123
结束页码: 3132
语种: 英语
英文关键词: Agriculture
; Climate change
; Hay cutting
; Long-term data
; Temperature response
Scopus关键词: climate change
; climate effect
; global warming
; grassland
; hay
; meadow
; phenology
; spatial distribution
; temperature effect
; Germany
; Alopecurus pratensis
; agriculture
; article
; climate change
; flower
; Germany
; hay cutting
; history
; long-term data
; methodology
; physiology
; Poaceae
; temperature
; temperature response
; agriculture
; climate change
; hay cutting
; long-term data
; temperature response
; Agriculture
; Climate Change
; Flowers
; Germany
; History, 20th Century
; History, 21st Century
; Poaceae
; Temperature
英文摘要: A unique long-term phenological data set of over 110 000 records of 1st cutting dates for haymaking across Germany, spanning the years 1951-2011 was examined. In addition, we analyzed a long-term data set in the beginning of flowering of meadow foxtail (Alopecurus pratensis) covering the last 20 years. We tested whether hay-cutting dates (based on a human decision when to cut) showed trends, temperature relationships and spatial distribution similar to the development of this grassland species, and if these trends could be related to climate change. The timing of 1st hay cut was strongly influenced (P < 0.001) by altitude, latitude and longitude, revealing in particular an east-west gradient. Over the past 60 years, there have been changes in the timing of hay cutting, with the majority of German federal states having significant (P < 0.05) advances of approximately 1 day per decade. Overall, the response to mean March-May temperature was highly significant (-2.87 days °C-1; P < 0.001). However, in the last 20 years, no federal state experienced a significant advance and two were even significantly delayed. The temperature response in this post-1991 period became less or non-significant for most of the federal states. We suggest that differences in agricultural land use and unequal uptakes of Agri-Environment Schemes (AES, which encourage later cutting) were likely to be responsible for the regional differences, while the general increase in AES appears to have confounded the overall trend in hay cutting in the last 20 years. Trends over time and responses to temperature were small relative to those associated with the phenology of meadow foxtail. The advance in phenology of this species is greater than the advance in hay cutting, implying that hay cutting may not be keeping pace with a changing climate, which may have a positive effect on grassland ecology. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62331
Appears in Collections: 影响、适应和脆弱性
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作者单位: Chair of Ecoclimatology, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, Freising, 85354, Germany; Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, Garching, 85748, Germany; Institute of Zoology, Poznań University of Life Sciences, Wojska Polskiego 71C, Poznań, 60-625, Poland; Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ, United Kingdom; Sigma, Faculty of Engineering and Computing, Coventry University, Coventry, CV1 5FB, United Kingdom
Recommended Citation:
Bock A.,Sparks T.H.,Estrella N.,et al. Changes in the timing of hay cutting in Germany do not keep pace with climate warming[J]. Global Change Biology,2013-01-01,19(10)