Article (Scientific journals)
Bedrock geochemistry influences vegetation growth by regulating the regolith water holding capacity
Jiang, Z.; Liu, H.; Wang, H. et al.
2020In Nature Communications, 11 (1)
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Keywords :
Article; Palmer Drought Severity Index; China
Abstract :
[en] Although low vegetation productivity has been observed in karst regions, whether and how bedrock geochemistry contributes to the low karstic vegetation productivity remain unclear. In this study, we address this knowledge gap by exploring the importance of bedrock geochemistry on vegetation productivity based on a critical zone investigation across a typical karst region in Southwest China. We show silicon and calcium concentrations in bedrock are strongly correlated with the regolith water loss rate (RWLR), while RWLR can predict vegetation productivity more effectively than previous models. Furthermore, the analysis based on 12 selected karst regions worldwide further suggest that lithological regulation has the potential to obscure and distort the influence of climate change. Our study implies that bedrock geochemistry could exert effects on vegetation growth in karst regions and highlights that the critical role of bedrock geochemistry for the karst region should not be ignored in the earth system model. © 2020, The Author(s).
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Jiang, Z.
Liu, H.;  College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing, 100871, China
Wang, H.;  College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing, 100871, China
Peng, J.;  College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing, 100871, China
Meersmans, Jeroen ;  Université de Liège - ULiège > Département GxABT > Analyse des risques environnementaux
Green, S. M.;  Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4SB, United Kingdom
Quine, T. A.;  Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4SB, United Kingdom
Wu, X.;  Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
Song, Z.;  Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
Language :
English
Title :
Bedrock geochemistry influences vegetation growth by regulating the regolith water holding capacity
Publication date :
2020
Journal title :
Nature Communications
eISSN :
2041-1723
Publisher :
Nature Research
Volume :
11
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 November 2021

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