Number of the records: 1
Relative importance of climatic variables, soil properties and plant traits to spatial variability in net CO2 exchange across global forests and grasslands
- 1.
SYSNO ASEP 0545537 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Relative importance of climatic variables, soil properties and plant traits to spatial variability in net CO2 exchange across global forests and grasslands Author(s) Zhou, H. (CN)
Shao, J. (CN)
Liu, H. (CN)
Du, Z. (CN)
Zhou, L. (CN)
Liu, R. (CN)
Bernhofer, Ch. (DE)
Gruenwald, T. (DE)
Dušek, Jiří (UEK-B) RID, SAI
Montagnani, L. (IT)
Tagesson, T. (SE)
Black, T. A. (CA)
Jassal, R. (CA)
Woodgate, W. (AU)
Biraud, S. (US)
Varlagin, A. (RU)
Mammarella, I. (FI)
Gharun, M. (CH)
Shekhar, A. (CH)
Buchmann, N. (CH)
Manco, A. (IT)
Magliulo, E. (IT)
Billesbach, D. (US)
Silberstein, R. P. (AU)
Ohta, T. (JP)
Yu, G. (CN)
Chen, Z. (CN)
Zhang, Y. (CN)
Zhou, X. (CN)Number of authors 29 Article number 108506 Source Title Agricultural and Forest Meteorology. - : Elsevier - ISSN 0168-1923
Roč. 307, SEP (2021)Number of pages 16 s. Language eng - English Country NL - Netherlands Keywords carbon balance ; organic-matter ; interannual variability ; temperature sensitivity ; nutrient availability ; litter decomposition ; ecosystem exchange ; land-surface ; leaf-area ; respiration ; Carbon ; Climatic variables ; Net ecosystem exchange ; Plant traits ; Soil properties ; Spatial variability Subject RIV EH - Ecology, Behaviour OECD category Environmental sciences (social aspects to be 5.7) R&D Projects LM2018123 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i. Method of publishing Limited access Institutional support UEK-B - RVO:86652079 UT WOS 000682515100024 EID SCOPUS 85107968565 DOI 10.1016/j.agrformet.2021.108506 Annotation Compared to the well-known drivers of spatial variability in gross primary productivity (GPP), the relative importance of climatic variables, soil properties and plant traits to the spatial variability in net ecosystem exchange of CO2 between terrestrial ecosystem and atmosphere (NEE) is poorly understood. We used principal component regression to analyze data from 147 eddy flux sites to disentangle effects of climatic variables, soil properties and plant traits on the spatial variation in annual NEE and its components (GPP and ecosystem respiration (RE)) across global forests and grasslands. Our results showed that the largest unique contribution (proportion of variance only explained by one class of variables) to NEE variance came from climatic variables for forests (24%-30%) and soil properties for grasslands (41%-54%). Specifically, mean annual precipitation and potential evapotranspiration were the most important climatic variables driving forest NEE, whereas available soil water capacity, clay content and cation exchange capacity mainly influenced grassland NEE. Plant traits showed a small unique contribution to NEE in both forests and grasslands. However, leaf phosphorus content strongly interacted with soil total nitrogen density and clay content, and these combined factors represented a major contribution for grassland NEE. For GPP and RE, the majority of spatial variance was attributed to the common contribution of climate, soil and plant traits (50% 62%, proportion of variance explained by more than one class of variables), rather than their unique contributions. Interestingly, those factors with only minor influences on GPP and RE variability (e.g., soil properties) have significant contributions to the spatial variability in NEE. Such emerging factors and the interactions between climatic variables, soil properties and plant traits are not well represented in current terrestrial biosphere models, which should be considered in future model improvement to accurately predict the spatial pattern of carbon cycling across forests and grasslands globally. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2022 Electronic address https://www.sciencedirect.com/science/article/pii/S0168192321001908?via%3Dihub
Number of the records: 1