globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2516
论文题名:
Soil carbon storage controlled by interactions between geochemistry and climate
作者: Doetterl S.; Stevens A.; Six J.; Merckx R.; Van Oost K.; Casanova Pinto M.; Casanova-Katny A.; Muñoz C.; Boudin M.; Zagal Venegas E.; Boeckx P.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2015
卷: 8, 期:10
起始页码: 780
结束页码: 783
语种: 英语
Scopus关键词: adsorption ; carbon sequestration ; climate change ; geochemistry ; grassland ; precipitation (climatology) ; shrubland ; soil carbon ; soil respiration ; temperature effect ; Antarctic Peninsula ; Antarctica ; Chile ; West Antarctica
英文摘要: Soils are an important site of carbon storage. Climate is generally regarded as one of the primary controls over soil organic carbon, but there is still uncertainty about the direction and magnitude of carbon responses to climate change. Here we show that geochemistry, too, is an important controlling factor for soil carbon storage. We measured a range of soil and climate variables at 24 sites along a 4,000-km-long north-south transect of natural grassland and shrubland in Chile and the Antarctic Peninsula, which spans a broad range of climatic and geochemical conditions. We find that soils with high carbon content are characterized by substantial adsorption of carbon compounds onto mineral soil and low rates of respiration per unit of soil carbon; and vice versa for soils with low carbon content. Precipitation and temperature were only secondary predictors for carbon storage, respiration, residence time and stabilization mechanisms. Correlations between climatic variables and carbon variables decreased significantly after removing relationships with geochemical predictors. We conclude that the interactions of climatic and geochemical factors control soil organic carbon storage and turnover, and must be considered for robust prediction of current and future soil carbon storage. © 2015 Macmillan Publishers Limited. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106158
Appears in Collections:气候减缓与适应
科学计划与规划

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作者单位: Isotope Bioscience Laboratory, Ghent University, Gent, Belgium; Department of Geography, University of Augsburg, Augsburg, Germany; George Lemaître Centre for Earth and Climate Research, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium; Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland; Department of Earth and Environmental Sciences, Katholieke Universiteit Leuven, Heverlee, Belgium; Departamento de Ingeniería y Suelos, Universidad de Chile, Santiago, Chile; Facultad de Química y Farmacia, Universidad de Santiago de Chile, Santiago, Chile; Departamento de Ciencias Del Suelo y Recursos Naturales, Universidad de Concepción, Chillán, Chile; Royal Institute for Cultural Heritage, Bruxelles, Belgium

Recommended Citation:
Doetterl S.,Stevens A.,Six J.,et al. Soil carbon storage controlled by interactions between geochemistry and climate[J]. Nature Geoscience,2015-01-01,8(10)
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