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

Title data

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. Vol. 13 (2004) Issue 2 . - pp. 105-114.
ISSN 1466-822X
DOI: https://doi.org/10.1111/j.1466-882X.2004.00072.x

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER16304
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 09 Oct 2015 05:56
Last Modified: 09 Oct 2015 05:56
URI: https://eref.uni-bayreuth.de/id/eprint/20240