Seasonal variations in the response of soil respiration to rainfall events in a riparian poplar plantation.
Identifieur interne : 000140 ( Main/Corpus ); précédent : 000139; suivant : 000141Seasonal variations in the response of soil respiration to rainfall events in a riparian poplar plantation.
Auteurs : Mengxun Zhu ; Hans J. De Boeck ; Hang Xu ; Zuosinan Chen ; Jiang Lv ; Zhiqiang ZhangSource :
- The Science of the total environment [ 1879-1026 ] ; 2020.
English descriptors
- KwdEn :
- MESH :
Abstract
Rainfall events have profound influence on the soil carbon release in different forest ecosystems. However, seasonal variations in soil respiration (RS) response to rainfall events and associated regulatory processes are not well documented in riparian forest ecosystems to date. We continuously measured soil respiration in a riparian plantation ecosystem from 2015 to 2018 to explore the relationships between soil respiration and rainfall events. Across the 4 years, 83 individual rainfall events were identified for spring, summer and autumn. We found that mean RS rate after rain (post-RS) was significantly higher than that before rain (pre-RS) (p < 0.05) in spring, and the relative change in soil respiration (RSrc) increased against rainfall size due to the stimulation by the significant increases in soil moisture content (ΔSM). In contrast, mean post-RS was lower than pre-RS and RSrc was significantly decreased with the increasing rainfall size (p < 0.01) in summer and autumn. Reduced changes in soil temperature (ΔTS) and increased soil moisture content after rain (post-SM) contributed to the decreased RS due to frequently occurring heavy rain events in summer. Increased ΔSM following rainfall events coupled with groundwater level increase suppressed RSrc in autumn, even though increased ΔTS could offset the negative effects of SM on RS to some extent. In addition, we found that higher post-SM after large rainfall events (>10 mm day-1) changed the response of RS to soil temperature (TS) by reducing the temperature sensitivity (Q10) even in this riparian plantation ecosystem. Our study highlights the importance of integrating seasonal difference in soil respiration response to rainfall events and the impact of large rainfall events on soil C release for estimating forest soil carbon cycling at multiple scales.
DOI: 10.1016/j.scitotenv.2020.141222
PubMed: 32795795
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Electronic address: hans.deboeck@uantwerp.be.</nlm:affiliation></affiliation></author><author><name sortKey="Xu, Hang" sort="Xu, Hang" uniqKey="Xu H" first="Hang" last="Xu">Hang Xu</name><affiliation><nlm:affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: xuhang_bjfu@163.com.</nlm:affiliation></affiliation></author><author><name sortKey="Chen, Zuosinan" sort="Chen, Zuosinan" uniqKey="Chen Z" first="Zuosinan" last="Chen">Zuosinan Chen</name><affiliation><nlm:affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: zuosinan.chen@gmail.com.</nlm:affiliation></affiliation></author><author><name sortKey="Lv, Jiang" sort="Lv, Jiang" uniqKey="Lv J" first="Jiang" last="Lv">Jiang Lv</name><affiliation><nlm:affiliation>Gongqing Forest Farm, Beijing Municipal Forestry and Landscape Administration, Beijing 101300, PR China. Electronic address: lvjianggongqing@163.com.</nlm:affiliation></affiliation></author><author><name sortKey="Zhang, Zhiqiang" sort="Zhang, Zhiqiang" uniqKey="Zhang Z" first="Zhiqiang" last="Zhang">Zhiqiang Zhang</name><affiliation><nlm:affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. 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Electronic address: zhumengxun@163.com.</nlm:affiliation></affiliation></author><author><name sortKey="De Boeck, Hans J" sort="De Boeck, Hans J" uniqKey="De Boeck H" first="Hans J" last="De Boeck">Hans J. De Boeck</name><affiliation><nlm:affiliation>Research group PLECO (Plants and Ecosystems), Universiteit Antwerpen, 2610 Wilrijk, Belgium. Electronic address: hans.deboeck@uantwerp.be.</nlm:affiliation></affiliation></author><author><name sortKey="Xu, Hang" sort="Xu, Hang" uniqKey="Xu H" first="Hang" last="Xu">Hang Xu</name><affiliation><nlm:affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: xuhang_bjfu@163.com.</nlm:affiliation></affiliation></author><author><name sortKey="Chen, Zuosinan" sort="Chen, Zuosinan" uniqKey="Chen Z" first="Zuosinan" last="Chen">Zuosinan Chen</name><affiliation><nlm:affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: zuosinan.chen@gmail.com.</nlm:affiliation></affiliation></author><author><name sortKey="Lv, Jiang" sort="Lv, Jiang" uniqKey="Lv J" first="Jiang" last="Lv">Jiang Lv</name><affiliation><nlm:affiliation>Gongqing Forest Farm, Beijing Municipal Forestry and Landscape Administration, Beijing 101300, PR China. Electronic address: lvjianggongqing@163.com.</nlm:affiliation></affiliation></author><author><name sortKey="Zhang, Zhiqiang" sort="Zhang, Zhiqiang" uniqKey="Zhang Z" first="Zhiqiang" last="Zhang">Zhiqiang Zhang</name><affiliation><nlm:affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: zhqzhang@bjfu.edu.cn.</nlm:affiliation></affiliation></author></analytic><series><title level="j">The Science of the total environment</title><idno type="eISSN">1879-1026</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ecosystem (MeSH)</term><term>Populus (MeSH)</term><term>Rain (MeSH)</term><term>Seasons (MeSH)</term><term>Soil (MeSH)</term><term>Temperature (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Soil</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Ecosystem</term><term>Populus</term><term>Rain</term><term>Seasons</term><term>Temperature</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Rainfall events have profound influence on the soil carbon release in different forest ecosystems. However, seasonal variations in soil respiration (RS) response to rainfall events and associated regulatory processes are not well documented in riparian forest ecosystems to date. We continuously measured soil respiration in a riparian plantation ecosystem from 2015 to 2018 to explore the relationships between soil respiration and rainfall events. Across the 4 years, 83 individual rainfall events were identified for spring, summer and autumn. We found that mean RS rate after rain (post-RS) was significantly higher than that before rain (pre-RS) (p < 0.05) in spring, and the relative change in soil respiration (RSrc) increased against rainfall size due to the stimulation by the significant increases in soil moisture content (ΔSM). In contrast, mean post-RS was lower than pre-RS and RSrc was significantly decreased with the increasing rainfall size (p < 0.01) in summer and autumn. Reduced changes in soil temperature (ΔTS) and increased soil moisture content after rain (post-SM) contributed to the decreased RS due to frequently occurring heavy rain events in summer. Increased ΔSM following rainfall events coupled with groundwater level increase suppressed RSrc in autumn, even though increased ΔTS could offset the negative effects of SM on RS to some extent. In addition, we found that higher post-SM after large rainfall events (>10 mm day<sup>-1</sup>) changed the response of RS to soil temperature (TS) by reducing the temperature sensitivity (Q<sub>10</sub>) even in this riparian plantation ecosystem. Our study highlights the importance of integrating seasonal difference in soil respiration response to rainfall events and the impact of large rainfall events on soil C release for estimating forest soil carbon cycling at multiple scales.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Automated" Owner="NLM"><PMID Version="1">32795795</PMID><DateCompleted><Year>2020</Year><Month>10</Month><Day>20</Day></DateCompleted><DateRevised><Year>2020</Year><Month>10</Month><Day>20</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-1026</ISSN><JournalIssue CitedMedium="Internet"><Volume>747</Volume><PubDate><Year>2020</Year><Month>Dec</Month><Day>10</Day></PubDate></JournalIssue><Title>The Science of the total environment</Title><ISOAbbreviation>Sci Total Environ</ISOAbbreviation></Journal><ArticleTitle>Seasonal variations in the response of soil respiration to rainfall events in a riparian poplar plantation.</ArticleTitle><Pagination><MedlinePgn>141222</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0048-9697(20)34751-3</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.scitotenv.2020.141222</ELocationID><Abstract><AbstractText>Rainfall events have profound influence on the soil carbon release in different forest ecosystems. However, seasonal variations in soil respiration (RS) response to rainfall events and associated regulatory processes are not well documented in riparian forest ecosystems to date. We continuously measured soil respiration in a riparian plantation ecosystem from 2015 to 2018 to explore the relationships between soil respiration and rainfall events. Across the 4 years, 83 individual rainfall events were identified for spring, summer and autumn. We found that mean RS rate after rain (post-RS) was significantly higher than that before rain (pre-RS) (p < 0.05) in spring, and the relative change in soil respiration (RSrc) increased against rainfall size due to the stimulation by the significant increases in soil moisture content (ΔSM). In contrast, mean post-RS was lower than pre-RS and RSrc was significantly decreased with the increasing rainfall size (p < 0.01) in summer and autumn. Reduced changes in soil temperature (ΔTS) and increased soil moisture content after rain (post-SM) contributed to the decreased RS due to frequently occurring heavy rain events in summer. Increased ΔSM following rainfall events coupled with groundwater level increase suppressed RSrc in autumn, even though increased ΔTS could offset the negative effects of SM on RS to some extent. In addition, we found that higher post-SM after large rainfall events (>10 mm day<sup>-1</sup>) changed the response of RS to soil temperature (TS) by reducing the temperature sensitivity (Q<sub>10</sub>) even in this riparian plantation ecosystem. Our study highlights the importance of integrating seasonal difference in soil respiration response to rainfall events and the impact of large rainfall events on soil C release for estimating forest soil carbon cycling at multiple scales.</AbstractText><CopyrightInformation>Copyright © 2020 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Zhu</LastName><ForeName>Mengxun</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: zhumengxun@163.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>De Boeck</LastName><ForeName>Hans J</ForeName><Initials>HJ</Initials><AffiliationInfo><Affiliation>Research group PLECO (Plants and Ecosystems), Universiteit Antwerpen, 2610 Wilrijk, Belgium. Electronic address: hans.deboeck@uantwerp.be.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Hang</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: xuhang_bjfu@163.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Zuosinan</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: zuosinan.chen@gmail.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lv</LastName><ForeName>Jiang</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Gongqing Forest Farm, Beijing Municipal Forestry and Landscape Administration, Beijing 101300, PR China. Electronic address: lvjianggongqing@163.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Zhiqiang</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>Key Laboratory of Soil and Water Conservation and Desertification Combating, State Forestry and Grassland Administration, PR China; College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China. Electronic address: zhqzhang@bjfu.edu.cn.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>08</Month><Day>02</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Sci Total Environ</MedlineTA><NlmUniqueID>0330500</NlmUniqueID><ISSNLinking>0048-9697</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="Y">Populus</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011891" MajorTopicYN="N">Rain</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="Y">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013696" MajorTopicYN="N">Temperature</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Carbon cycling</Keyword><Keyword MajorTopicYN="N">Rainfall regime</Keyword><Keyword MajorTopicYN="N">Riparian forest ecosystem</Keyword><Keyword MajorTopicYN="N">Soil moisture</Keyword><Keyword MajorTopicYN="N">Soil temperature</Keyword></KeywordList><CoiStatement>Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.</CoiStatement></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2020</Year><Month>05</Month><Day>10</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>07</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>07</Month><Day>23</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>8</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>10</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>8</Month><Day>16</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32795795</ArticleId><ArticleId IdType="pii">S0048-9697(20)34751-3</ArticleId><ArticleId IdType="doi">10.1016/j.scitotenv.2020.141222</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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