Changes of spring phenodates for the past 150 years over the Yangtze River Delta

Auteur(s) et Affiliation(s)



Description :
Based on phenological records extracted from Chinese historical dairies, spring phenological series in the Yangtze River Delta (YRD) of China since 1834 is reconstructed. Together with temperature and phenological observation data, the indicating significance of spring phenological series to temperature changes is also analyzed. It is shown that spring phenodate in the YRD was fluctuated. Compared with the mean value for 1977–1996, the latest phenodate occurred in 1893 with 27 days delayed while the earliest phenodate occurred in 2007 with 17 days advanced. Moreover, the correlation coefficients between spring phenodates and temperatures from December to March and from January to March indicate that the phenodate series well present the long-term changes of winter and early spring (especially from January to March) temperatures. These results provide important basic data for the long-term integrated temperature reconstruction over China in the future work.


Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2013, vol. 23, n°. 1, p. 31-44, nombre de pages : 14, Références bibliographiques : 19 ref.

Date :
2013

Editeur :
Pays édition : Chine