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Variation in litterfall-climate relationships between coniferous and broadleaf forests in Eurasia

Titelangaben

Liu, Chunjiang ; Westman, Carl J. ; Berg, Björn ; Kutsch, Werner ; Wang, Gary Z. ; Man, Rongzhou ; Ilvesniemi, Hannu:
Variation in litterfall-climate relationships between coniferous and broadleaf forests in Eurasia.
In: Global Ecology and Biogeography. Bd. 13 (2004) Heft 2 . - S. 105-114.
ISSN 1466-822X
DOI: https://doi.org/10.1111/j.1466-882X.2004.00072.x

Abstract

AimThe objectives of this study were to determine the relationships between climatic factors and litterfall in coniferous and broadleaf forests in Eurasia and to explore the difference in litterfall between coniferous and broadleaf forests as related to climate at a continental scale.LocationWe have used data from across Eurasia.MethodsThe relationships between litterfall and climatic factors were examined using linear regression analysis of a compilation of published data from coniferous and broadleaf forests in Eurasia.ResultsThe relationships between litterfall and climatic factors show that in the temperate, subtropical, and tropical areas, broadleaf forests had higher litterfall than coniferous ones, whilst the opposite was found for boreal forests. Combining all climatic zones, a multiple regression analysis using annual mean temperature (T) and annual precipitation (P) as independent variables gave an adjusted R2(R2adj) of 0.272 for total litterfall in coniferous forests (n= 199, P < 0.001), 0.498 for broadleaf litterfall (n = 240, P < 0.001), and 0.535 for combined coniferous and broadleaf litterfall (n = 439, P < 0.001). The linear models for broadleaf stands have significantly higher coefficients for T and P than those for coniferous ones but the intercepts were similar. Thus, litterfall in broadleaf forests increased faster with T and P than that in coniferous forests. Further, a transformation of temperature and precipitation to relative units showed that a relative-unit change in T had a larger impact than P on total litterfall in broadleaf forests. The results indicate that at a continental scale, climatic controls over litterfall differ between coniferous and broadleaf forests.ConclusionsA relative unit change in annual mean temperature has a greater effect on litterfall compared to the same change in annual precipitation across the Eurasian forests. Further, the higher response to T for broadleaf forests indicates a difference in climate control between coniferous and broadleaf forests at a continental scale, and consequently different litterfall responses to climate change.KeywordsClimate change, coniferous forests, broadleaf forests, Eurasia, litterfall, phenology, precipitation, temperature, vegetation-climate relationships.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER16304
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenökologie
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 09 Okt 2015 05:56
Letzte Änderung: 09 Okt 2015 05:56
URI: https://eref.uni-bayreuth.de/id/eprint/20240