Soil microbial responses to warming and increased precipitation and their implications for ecosystem C cycling
A better understanding of soil microbial ecology is critical to gaining an understanding of terrestrial carbon (C) cycle–climate change feedbacks. However, current knowledge limits our ability to predict microbial community dynamics in the face of multiple global change drivers and their implication...
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| Veröffentlicht in: | Oecologia 2013-11, Vol.173 (3), p.1125-1142 |
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| creator | Zhang, Naili Liu, Weixing Yang, Haijun Yu, Xingjun Gutknecht, Jessica L. M. Zhang, Zhe Wan, Shiqiang Ma, Keping |
| description | A better understanding of soil microbial ecology is critical to gaining an understanding of terrestrial carbon (C) cycle–climate change feedbacks. However, current knowledge limits our ability to predict microbial community dynamics in the face of multiple global change drivers and their implications for respiratory loss of soil carbon. Whether microorganisms will acclimate to climate warming and ameliorate predicted respiratory C losses is still debated. It also remains unclear how precipitation, another important climate change driver, will interact with warming to affect microorganisms and their regulation of respiratory C loss. We explore the dynamics of microorganisms and their contributions to respiratory C loss using a 4-year (2006—2009) field experiment in a semi-arid grassland with increased temperature and precipitation in a full factorial design. We found no response of mass-specific (per unit microbial biomass C) heterotrophic respiration to warming, suggesting that respiratory C loss is directly from microbial growth rather than total physiological respiratory responses to warming. Increased precipitation did stimulate both microbial biomass and mass-specific respiration, both of which make large contributions to respiratory loss of soil carbon. Taken together, these results suggest that, in semi-arid grasslands, soil moisture and related substrate availability may inhibit physiological respiratory responses to warming (where soil moisture was significantly lower), while they are not inhibited under elevated precipitation. Although we found no total physiological response to warming, warming increased bacterial C utilization (measured by BIOLOG EcoPlates) and increased bacterial oxidation of carbohydrates and phenols. Non-metric multidimensional scaling analysis as well as ANOVA testing showed that warming or increased precipitation did not change microbial community structure, which could suggest that microbial communities in semiarid grasslands are already adapted to fluctuating climatic conditions. In summary, our results support the idea that microbial responses to climate change are multifaceted and, even with no large shifts in community structure, microbial mediation of soil carbon loss could still occur under future climate scenarios. |
| doi_str_mv | 10.1007/s00442-013-2685-9 |
| format | Article |
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M. ; Zhang, Zhe ; Wan, Shiqiang ; Ma, Keping</creator><creatorcontrib>Zhang, Naili ; Liu, Weixing ; Yang, Haijun ; Yu, Xingjun ; Gutknecht, Jessica L. M. ; Zhang, Zhe ; Wan, Shiqiang ; Ma, Keping</creatorcontrib><description>A better understanding of soil microbial ecology is critical to gaining an understanding of terrestrial carbon (C) cycle–climate change feedbacks. However, current knowledge limits our ability to predict microbial community dynamics in the face of multiple global change drivers and their implications for respiratory loss of soil carbon. Whether microorganisms will acclimate to climate warming and ameliorate predicted respiratory C losses is still debated. It also remains unclear how precipitation, another important climate change driver, will interact with warming to affect microorganisms and their regulation of respiratory C loss. We explore the dynamics of microorganisms and their contributions to respiratory C loss using a 4-year (2006—2009) field experiment in a semi-arid grassland with increased temperature and precipitation in a full factorial design. We found no response of mass-specific (per unit microbial biomass C) heterotrophic respiration to warming, suggesting that respiratory C loss is directly from microbial growth rather than total physiological respiratory responses to warming. Increased precipitation did stimulate both microbial biomass and mass-specific respiration, both of which make large contributions to respiratory loss of soil carbon. Taken together, these results suggest that, in semi-arid grasslands, soil moisture and related substrate availability may inhibit physiological respiratory responses to warming (where soil moisture was significantly lower), while they are not inhibited under elevated precipitation. Although we found no total physiological response to warming, warming increased bacterial C utilization (measured by BIOLOG EcoPlates) and increased bacterial oxidation of carbohydrates and phenols. Non-metric multidimensional scaling analysis as well as ANOVA testing showed that warming or increased precipitation did not change microbial community structure, which could suggest that microbial communities in semiarid grasslands are already adapted to fluctuating climatic conditions. In summary, our results support the idea that microbial responses to climate change are multifaceted and, even with no large shifts in community structure, microbial mediation of soil carbon loss could still occur under future climate scenarios.</description><identifier>ISSN: 0029-8549</identifier><identifier>EISSN: 1432-1939</identifier><identifier>DOI: 10.1007/s00442-013-2685-9</identifier><identifier>PMID: 23736549</identifier><identifier>CODEN: OECOBX</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer</publisher><subject>Acclimatization - physiology ; Acid soils ; Analysis of Variance ; Animal and plant ecology ; Animal, plant and microbial ecology ; Bacteria - metabolism ; Biological and medical sciences ; Biomedical and Life Sciences ; Carbohydrates ; Carbon ; Carbon content ; Carbon Cycle - physiology ; China ; Climate change ; Climatic conditions ; Community structure ; Ecology ; Ecosystem ; Ecosystems ; Fundamental and applied biological sciences. Psychology ; General aspects ; GLOBAL CHANGE ECOLOGY ; Global change ecology - Original research ; Global temperature changes ; Global Warming ; Grassland soils ; Grasslands ; Hydrology/Water Resources ; Life Sciences ; Microbial activity ; Microbial biomass ; Microbial ecology ; Microorganisms ; Phenols ; Physiology ; Plant Sciences ; Precipitation ; Rain ; Rain and rainfall ; Respiration ; Soil ecology ; Soil heating ; Soil Microbiology ; Soil microorganisms ; Soil moisture ; Soil respiration ; Soils ; Synecology ; Terrestrial ecosystems ; Variance analysis ; Various environments (extraatmospheric space, air, water)</subject><ispartof>Oecologia, 2013-11, Vol.173 (3), p.1125-1142</ispartof><rights>Springer-Verlag Berlin Heidelberg 2013</rights><rights>2014 INIST-CNRS</rights><rights>COPYRIGHT 2013 Springer</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c558t-103089fef76216f287b95e2a239f758f26af097f5e206552c549361a6ccac5b03</citedby><cites>FETCH-LOGICAL-c558t-103089fef76216f287b95e2a239f758f26af097f5e206552c549361a6ccac5b03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/24033584$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/24033584$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,41464,42533,51294,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27845134$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23736549$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Naili</creatorcontrib><creatorcontrib>Liu, Weixing</creatorcontrib><creatorcontrib>Yang, Haijun</creatorcontrib><creatorcontrib>Yu, Xingjun</creatorcontrib><creatorcontrib>Gutknecht, Jessica L. M.</creatorcontrib><creatorcontrib>Zhang, Zhe</creatorcontrib><creatorcontrib>Wan, Shiqiang</creatorcontrib><creatorcontrib>Ma, Keping</creatorcontrib><title>Soil microbial responses to warming and increased precipitation and their implications for ecosystem C cycling</title><title>Oecologia</title><addtitle>Oecologia</addtitle><addtitle>Oecologia</addtitle><description>A better understanding of soil microbial ecology is critical to gaining an understanding of terrestrial carbon (C) cycle–climate change feedbacks. However, current knowledge limits our ability to predict microbial community dynamics in the face of multiple global change drivers and their implications for respiratory loss of soil carbon. Whether microorganisms will acclimate to climate warming and ameliorate predicted respiratory C losses is still debated. It also remains unclear how precipitation, another important climate change driver, will interact with warming to affect microorganisms and their regulation of respiratory C loss. We explore the dynamics of microorganisms and their contributions to respiratory C loss using a 4-year (2006—2009) field experiment in a semi-arid grassland with increased temperature and precipitation in a full factorial design. We found no response of mass-specific (per unit microbial biomass C) heterotrophic respiration to warming, suggesting that respiratory C loss is directly from microbial growth rather than total physiological respiratory responses to warming. Increased precipitation did stimulate both microbial biomass and mass-specific respiration, both of which make large contributions to respiratory loss of soil carbon. Taken together, these results suggest that, in semi-arid grasslands, soil moisture and related substrate availability may inhibit physiological respiratory responses to warming (where soil moisture was significantly lower), while they are not inhibited under elevated precipitation. Although we found no total physiological response to warming, warming increased bacterial C utilization (measured by BIOLOG EcoPlates) and increased bacterial oxidation of carbohydrates and phenols. Non-metric multidimensional scaling analysis as well as ANOVA testing showed that warming or increased precipitation did not change microbial community structure, which could suggest that microbial communities in semiarid grasslands are already adapted to fluctuating climatic conditions. In summary, our results support the idea that microbial responses to climate change are multifaceted and, even with no large shifts in community structure, microbial mediation of soil carbon loss could still occur under future climate scenarios.</description><subject>Acclimatization - physiology</subject><subject>Acid soils</subject><subject>Analysis of Variance</subject><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Bacteria - metabolism</subject><subject>Biological and medical sciences</subject><subject>Biomedical and Life Sciences</subject><subject>Carbohydrates</subject><subject>Carbon</subject><subject>Carbon content</subject><subject>Carbon Cycle - physiology</subject><subject>China</subject><subject>Climate change</subject><subject>Climatic conditions</subject><subject>Community structure</subject><subject>Ecology</subject><subject>Ecosystem</subject><subject>Ecosystems</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General aspects</subject><subject>GLOBAL CHANGE ECOLOGY</subject><subject>Global change ecology - Original research</subject><subject>Global temperature changes</subject><subject>Global Warming</subject><subject>Grassland soils</subject><subject>Grasslands</subject><subject>Hydrology/Water Resources</subject><subject>Life Sciences</subject><subject>Microbial activity</subject><subject>Microbial biomass</subject><subject>Microbial ecology</subject><subject>Microorganisms</subject><subject>Phenols</subject><subject>Physiology</subject><subject>Plant Sciences</subject><subject>Precipitation</subject><subject>Rain</subject><subject>Rain and rainfall</subject><subject>Respiration</subject><subject>Soil ecology</subject><subject>Soil heating</subject><subject>Soil Microbiology</subject><subject>Soil microorganisms</subject><subject>Soil moisture</subject><subject>Soil respiration</subject><subject>Soils</subject><subject>Synecology</subject><subject>Terrestrial ecosystems</subject><subject>Variance analysis</subject><subject>Various environments (extraatmospheric space, air, water)</subject><issn>0029-8549</issn><issn>1432-1939</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kt-LEzEQxxdRvHr6B_igBORAH_bMj0129_Eopx4cCJ4-hzSd1JTdZM2kaP9702u1VkTyEJj5zGTmm29VPWf0klHavkVKm4bXlImaq07W_YNqxhrBa9aL_mE1o5T3dSeb_qx6grimlDVMysfVGRetUCU-q8Jd9AMZvU1x4c1AEuAUAwKSHMl3k0YfVsSEJfHBJjAISzIlsH7y2WQfw30ufwWfiB-nwdv7KBIXEwEbcYsZRjIndmuH0upp9ciZAeHZ4T6vvry7_jz_UN9-fH8zv7qtrZRdrhkVtOsduFZxphzv2kUvgRsuetfKznFlHO1bV2JUSclt2UUoZpS1xsoFFefV633fKcVvG8CsR48WhsEEiBvUrJFFF9pxVtBXf6HruEmhTFeoIqYSnPZHamUG0D64mJOxu6b6Ssgyi1JdW6jLf1DlLKFIHAM4X-InBW9OCgqT4UdemQ2ivrn7dMqyPVv-CjGB01Pyo0lbzaje-UHv_aCLH_TOD3o39svDcpvFCMvfFb8MUICLA2DQmsElE6zHI9d2jWSiKRzfc1hSYQXpD5X-8_qLfdEac0zHpg0VQnaN-AnBpNQn</recordid><startdate>20131101</startdate><enddate>20131101</enddate><creator>Zhang, Naili</creator><creator>Liu, Weixing</creator><creator>Yang, Haijun</creator><creator>Yu, Xingjun</creator><creator>Gutknecht, Jessica L. 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M. ; Zhang, Zhe ; Wan, Shiqiang ; Ma, Keping</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c558t-103089fef76216f287b95e2a239f758f26af097f5e206552c549361a6ccac5b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Acclimatization - physiology</topic><topic>Acid soils</topic><topic>Analysis of Variance</topic><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Bacteria - metabolism</topic><topic>Biological and medical sciences</topic><topic>Biomedical and Life Sciences</topic><topic>Carbohydrates</topic><topic>Carbon</topic><topic>Carbon content</topic><topic>Carbon Cycle - physiology</topic><topic>China</topic><topic>Climate change</topic><topic>Climatic conditions</topic><topic>Community structure</topic><topic>Ecology</topic><topic>Ecosystem</topic><topic>Ecosystems</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General aspects</topic><topic>GLOBAL CHANGE ECOLOGY</topic><topic>Global change ecology - Original research</topic><topic>Global temperature changes</topic><topic>Global Warming</topic><topic>Grassland soils</topic><topic>Grasslands</topic><topic>Hydrology/Water Resources</topic><topic>Life Sciences</topic><topic>Microbial activity</topic><topic>Microbial biomass</topic><topic>Microbial ecology</topic><topic>Microorganisms</topic><topic>Phenols</topic><topic>Physiology</topic><topic>Plant Sciences</topic><topic>Precipitation</topic><topic>Rain</topic><topic>Rain and rainfall</topic><topic>Respiration</topic><topic>Soil ecology</topic><topic>Soil heating</topic><topic>Soil Microbiology</topic><topic>Soil microorganisms</topic><topic>Soil moisture</topic><topic>Soil respiration</topic><topic>Soils</topic><topic>Synecology</topic><topic>Terrestrial ecosystems</topic><topic>Variance analysis</topic><topic>Various environments (extraatmospheric space, air, water)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Naili</creatorcontrib><creatorcontrib>Liu, Weixing</creatorcontrib><creatorcontrib>Yang, Haijun</creatorcontrib><creatorcontrib>Yu, Xingjun</creatorcontrib><creatorcontrib>Gutknecht, Jessica L. 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M.</au><au>Zhang, Zhe</au><au>Wan, Shiqiang</au><au>Ma, Keping</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Soil microbial responses to warming and increased precipitation and their implications for ecosystem C cycling</atitle><jtitle>Oecologia</jtitle><stitle>Oecologia</stitle><addtitle>Oecologia</addtitle><date>2013-11-01</date><risdate>2013</risdate><volume>173</volume><issue>3</issue><spage>1125</spage><epage>1142</epage><pages>1125-1142</pages><issn>0029-8549</issn><eissn>1432-1939</eissn><coden>OECOBX</coden><abstract>A better understanding of soil microbial ecology is critical to gaining an understanding of terrestrial carbon (C) cycle–climate change feedbacks. However, current knowledge limits our ability to predict microbial community dynamics in the face of multiple global change drivers and their implications for respiratory loss of soil carbon. Whether microorganisms will acclimate to climate warming and ameliorate predicted respiratory C losses is still debated. It also remains unclear how precipitation, another important climate change driver, will interact with warming to affect microorganisms and their regulation of respiratory C loss. We explore the dynamics of microorganisms and their contributions to respiratory C loss using a 4-year (2006—2009) field experiment in a semi-arid grassland with increased temperature and precipitation in a full factorial design. We found no response of mass-specific (per unit microbial biomass C) heterotrophic respiration to warming, suggesting that respiratory C loss is directly from microbial growth rather than total physiological respiratory responses to warming. Increased precipitation did stimulate both microbial biomass and mass-specific respiration, both of which make large contributions to respiratory loss of soil carbon. Taken together, these results suggest that, in semi-arid grasslands, soil moisture and related substrate availability may inhibit physiological respiratory responses to warming (where soil moisture was significantly lower), while they are not inhibited under elevated precipitation. Although we found no total physiological response to warming, warming increased bacterial C utilization (measured by BIOLOG EcoPlates) and increased bacterial oxidation of carbohydrates and phenols. Non-metric multidimensional scaling analysis as well as ANOVA testing showed that warming or increased precipitation did not change microbial community structure, which could suggest that microbial communities in semiarid grasslands are already adapted to fluctuating climatic conditions. In summary, our results support the idea that microbial responses to climate change are multifaceted and, even with no large shifts in community structure, microbial mediation of soil carbon loss could still occur under future climate scenarios.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer</pub><pmid>23736549</pmid><doi>10.1007/s00442-013-2685-9</doi><tpages>18</tpages></addata></record> |
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| ispartof | Oecologia, 2013-11, Vol.173 (3), p.1125-1142 |
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| subjects | Acclimatization - physiology Acid soils Analysis of Variance Animal and plant ecology Animal, plant and microbial ecology Bacteria - metabolism Biological and medical sciences Biomedical and Life Sciences Carbohydrates Carbon Carbon content Carbon Cycle - physiology China Climate change Climatic conditions Community structure Ecology Ecosystem Ecosystems Fundamental and applied biological sciences. Psychology General aspects GLOBAL CHANGE ECOLOGY Global change ecology - Original research Global temperature changes Global Warming Grassland soils Grasslands Hydrology/Water Resources Life Sciences Microbial activity Microbial biomass Microbial ecology Microorganisms Phenols Physiology Plant Sciences Precipitation Rain Rain and rainfall Respiration Soil ecology Soil heating Soil Microbiology Soil microorganisms Soil moisture Soil respiration Soils Synecology Terrestrial ecosystems Variance analysis Various environments (extraatmospheric space, air, water) |
| title | Soil microbial responses to warming and increased precipitation and their implications for ecosystem C cycling |
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