Journal article
Winter climate change and fine root biogenic silica in sugar maple trees (Acer saccharum): Implications for silica in the Anthropocene
Journal of geophysical research. Biogeosciences, v 122(3), pp 708-715
01 Mar 2017
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Winter temperatures are projected to increase over the next century, leading to reductions in winter snowpack and increased frequency of soil freezing in many northern forest ecosystems. Here we examine biogenic silica (BSi) concentrations in sugar maple (Acer saccharum) fine roots collected from a snow manipulation experiment at Hubbard Brook Experimental Forest (New Hampshire, USA). Increased soil freezing significantly lowered the BSi content of sugar maple fine roots potentially decreasing their capacity to take up water and dissolved nutrients. The reduced silica uptake (8 +/- 1 kmol silica km(-2)) by sugar maple fine roots is comparable to silica export from temperate forest watersheds. We estimate that fine roots account for 29% of sugar maple BSi, despite accounting for only 4% of their biomass. These results suggest that increased frequency of soil freezing will reduce silica uptake by temperate tree roots, thereby changing silica availability in downstream receiving waters.
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Details
- Title
- Winter climate change and fine root biogenic silica in sugar maple trees (Acer saccharum): Implications for silica in the Anthropocene
- Creators
- Timothy J. Maguire - Boston UniversityPamela H. Templer - Boston UniversityJohn J. Battles - University of California, BerkeleyRobinson W. Fulweiler - Boston University
- Publication Details
- Journal of geophysical research. Biogeosciences, v 122(3), pp 708-715
- Publisher
- Amer Geophysical Union
- Number of pages
- 8
- Grant note
- USDA-Northeastern States Research Cooperative National Science Foundation; National Science Foundation (NSF) Sloan Foundation; Alfred P. Sloan Foundation Northeastern States Research Cooperative Northern Forest Scholars Program 1633026 / Direct For Biological Sciences; National Science Foundation (NSF); NSF - Directorate for Biological Sciences (BIO) A.W. Mellon Foundation Hubbard Brook Ecosystem Study (HBES)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Environmental Biogeochemistry
- Web of Science ID
- WOS:000398923300016
- Scopus ID
- 2-s2.0-85016545995
- Other Identifier
- 991021903360504721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Environmental Sciences
- Geosciences, Multidisciplinary