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Root respiration and biomass responses to experimental soil warming vary with root diameter and soil depth

Aims Respiration of sugar maple ( Acer saccharum ) surface fine roots has been shown to partially acclimate to experimentally increased soil temperature. In this study, we assessed how larger roots and roots at deeper depths responded to experimental warming. Methods We quantified specific root resp...

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Published in:Plant and soil 2020-06, Vol.451 (1-2), p.435-446
Main Authors: Jarvi, Mickey P., Burton, Andrew J.
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description Aims Respiration of sugar maple ( Acer saccharum ) surface fine roots has been shown to partially acclimate to experimentally increased soil temperature. In this study, we assessed how larger roots and roots at deeper depths responded to experimental warming. Methods We quantified specific root respiration and root biomass for three different diameter classes (
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In this study, we assessed how larger roots and roots at deeper depths responded to experimental warming. Methods We quantified specific root respiration and root biomass for three different diameter classes (&lt;1, 1–2, and 2–10 mm) from three soil depths (0–10, 10–30, and 30–50 cm) in a sugar maple forest that had received a factorial combination of increased soil temperature (4 to 5 °C above ambient) and supplemental precipitation for three growing seasons. Results Partial temperature acclimation occurred for respiration of fine-roots (&lt;1 mm) at 0–10 cm, limiting the increase to 30% above that for roots in the control treatment. In contrast, there was no evidence for acclimation of fine-roots at deeper depths, where soil warming caused respiration to more than double. There was evidence of acclimation for 1–2 mm roots at the 0–10 cm depth (20% reduction in respiration at an 18 °C reference temperature) but not for the larger diameter roots at any of the three soil depths. Root biomass was not altered by soil warming or moisture addition. Conclusions Despite partial thermal acclimation in surface fine-root respiration, soil warming caused an overall 41% increase in the C flux to the atmosphere from respiration of roots in the upper 30 cm of soil, from 21.3 to 30.1 μmol m −2  s −1 , potentially reducing C availability for biomass production.</description><identifier>ISSN: 0032-079X</identifier><identifier>EISSN: 1573-5036</identifier><identifier>DOI: 10.1007/s11104-020-04540-1</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Acclimation ; Acclimatization ; Acer saccharum saccharum ; Agriculture ; Biomass ; Biomedical and Life Sciences ; Ecology ; Growing season ; Life Sciences ; Plant Physiology ; Plant Sciences ; Regular Article ; Respiration ; Roots ; Soil depth ; Soil moisture ; Soil Science &amp; Conservation ; Soil temperature ; Soils ; Sugar</subject><ispartof>Plant and soil, 2020-06, Vol.451 (1-2), p.435-446</ispartof><rights>Springer Nature Switzerland AG 2020</rights><rights>Springer Nature Switzerland AG 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c346t-ef8175c39635389f5e247dad9c371a2beadd0d7e938a4a188bc8d3121a88d1ec3</citedby><cites>FETCH-LOGICAL-c346t-ef8175c39635389f5e247dad9c371a2beadd0d7e938a4a188bc8d3121a88d1ec3</cites><orcidid>0000-0002-7043-5603 ; 0000000270435603</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,778,782,883,27911,27912</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/1799669$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Jarvi, Mickey P.</creatorcontrib><creatorcontrib>Burton, Andrew J.</creatorcontrib><creatorcontrib>Michigan Technological Univ., Houghton, MI (United States)</creatorcontrib><title>Root respiration and biomass responses to experimental soil warming vary with root diameter and soil depth</title><title>Plant and soil</title><addtitle>Plant Soil</addtitle><description>Aims Respiration of sugar maple ( Acer saccharum ) surface fine roots has been shown to partially acclimate to experimentally increased soil temperature. In this study, we assessed how larger roots and roots at deeper depths responded to experimental warming. Methods We quantified specific root respiration and root biomass for three different diameter classes (&lt;1, 1–2, and 2–10 mm) from three soil depths (0–10, 10–30, and 30–50 cm) in a sugar maple forest that had received a factorial combination of increased soil temperature (4 to 5 °C above ambient) and supplemental precipitation for three growing seasons. Results Partial temperature acclimation occurred for respiration of fine-roots (&lt;1 mm) at 0–10 cm, limiting the increase to 30% above that for roots in the control treatment. In contrast, there was no evidence for acclimation of fine-roots at deeper depths, where soil warming caused respiration to more than double. There was evidence of acclimation for 1–2 mm roots at the 0–10 cm depth (20% reduction in respiration at an 18 °C reference temperature) but not for the larger diameter roots at any of the three soil depths. Root biomass was not altered by soil warming or moisture addition. Conclusions Despite partial thermal acclimation in surface fine-root respiration, soil warming caused an overall 41% increase in the C flux to the atmosphere from respiration of roots in the upper 30 cm of soil, from 21.3 to 30.1 μmol m −2  s −1 , potentially reducing C availability for biomass production.</description><subject>Acclimation</subject><subject>Acclimatization</subject><subject>Acer saccharum saccharum</subject><subject>Agriculture</subject><subject>Biomass</subject><subject>Biomedical and Life Sciences</subject><subject>Ecology</subject><subject>Growing season</subject><subject>Life Sciences</subject><subject>Plant Physiology</subject><subject>Plant Sciences</subject><subject>Regular Article</subject><subject>Respiration</subject><subject>Roots</subject><subject>Soil depth</subject><subject>Soil moisture</subject><subject>Soil Science &amp; Conservation</subject><subject>Soil temperature</subject><subject>Soils</subject><subject>Sugar</subject><issn>0032-079X</issn><issn>1573-5036</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKQzEQhoMoWKsv4Cro-mgmObcspXiDgiAK7kKaTNuUNjkmqZe397RHcOcqTPj-n5mPkHNgV8BYc50AgJUF46xgZVWyAg7ICKpGFBUT9SEZMSZ4wRr5dkxOUlqx3Qz1iKyeQ8g0Yupc1NkFT7W3dObCRqe0_w8-YaI5UPzqMLoN-qzXNAW3pp86bpxf0A8dv-mny0sad23W6Q1mjPuqPWixy8tTcjTX64Rnv--YvN7dvkweiunT_ePkZloYUda5wHkLTWWErEUlWjmvkJeN1VYa0YDmM9TWMtugFK0uNbTtzLRWAAfdthbQiDG5GHpDyk4l4zKapQneo8kKGinrWvbQ5QB1MbxvMWW1Ctvo-70ULzmXPVftKD5QJoaUIs5V1xvor1XA1E68GsSrXrzai1fQh8QQSj3sFxj_qv9J_QC9Vodx</recordid><startdate>20200601</startdate><enddate>20200601</enddate><creator>Jarvi, Mickey P.</creator><creator>Burton, Andrew J.</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><general>Springer</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SN</scope><scope>7ST</scope><scope>7T7</scope><scope>7X2</scope><scope>88A</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M0K</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>RC3</scope><scope>SOI</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-7043-5603</orcidid><orcidid>https://orcid.org/0000000270435603</orcidid></search><sort><creationdate>20200601</creationdate><title>Root respiration and biomass responses to experimental soil warming vary with root diameter and soil depth</title><author>Jarvi, Mickey P. ; Burton, Andrew J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c346t-ef8175c39635389f5e247dad9c371a2beadd0d7e938a4a188bc8d3121a88d1ec3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Acclimation</topic><topic>Acclimatization</topic><topic>Acer saccharum saccharum</topic><topic>Agriculture</topic><topic>Biomass</topic><topic>Biomedical and Life Sciences</topic><topic>Ecology</topic><topic>Growing season</topic><topic>Life Sciences</topic><topic>Plant Physiology</topic><topic>Plant Sciences</topic><topic>Regular Article</topic><topic>Respiration</topic><topic>Roots</topic><topic>Soil depth</topic><topic>Soil moisture</topic><topic>Soil Science &amp; Conservation</topic><topic>Soil temperature</topic><topic>Soils</topic><topic>Sugar</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jarvi, Mickey P.</creatorcontrib><creatorcontrib>Burton, Andrew J.</creatorcontrib><creatorcontrib>Michigan Technological Univ., Houghton, MI (United States)</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Agricultural Science Collection</collection><collection>Biology Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central</collection><collection>Agricultural &amp; 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In this study, we assessed how larger roots and roots at deeper depths responded to experimental warming. Methods We quantified specific root respiration and root biomass for three different diameter classes (&lt;1, 1–2, and 2–10 mm) from three soil depths (0–10, 10–30, and 30–50 cm) in a sugar maple forest that had received a factorial combination of increased soil temperature (4 to 5 °C above ambient) and supplemental precipitation for three growing seasons. Results Partial temperature acclimation occurred for respiration of fine-roots (&lt;1 mm) at 0–10 cm, limiting the increase to 30% above that for roots in the control treatment. In contrast, there was no evidence for acclimation of fine-roots at deeper depths, where soil warming caused respiration to more than double. There was evidence of acclimation for 1–2 mm roots at the 0–10 cm depth (20% reduction in respiration at an 18 °C reference temperature) but not for the larger diameter roots at any of the three soil depths. Root biomass was not altered by soil warming or moisture addition. Conclusions Despite partial thermal acclimation in surface fine-root respiration, soil warming caused an overall 41% increase in the C flux to the atmosphere from respiration of roots in the upper 30 cm of soil, from 21.3 to 30.1 μmol m −2  s −1 , potentially reducing C availability for biomass production.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s11104-020-04540-1</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-7043-5603</orcidid><orcidid>https://orcid.org/0000000270435603</orcidid></addata></record>
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subjects Acclimation
Acclimatization
Acer saccharum saccharum
Agriculture
Biomass
Biomedical and Life Sciences
Ecology
Growing season
Life Sciences
Plant Physiology
Plant Sciences
Regular Article
Respiration
Roots
Soil depth
Soil moisture
Soil Science & Conservation
Soil temperature
Soils
Sugar
title Root respiration and biomass responses to experimental soil warming vary with root diameter and soil depth
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