Soil carbon stocks under grazed pasture and pasture-tree systems.
Identifieur interne : 000115 ( Main/Exploration ); précédent : 000114; suivant : 000116Soil carbon stocks under grazed pasture and pasture-tree systems.
Auteurs : Grant Douglas [Nouvelle-Zélande] ; Alec Mackay [Nouvelle-Zélande] ; Ronaldo Vibart [Nouvelle-Zélande] ; Mike Dodd [Nouvelle-Zélande] ; Ian Mcivor [Nouvelle-Zélande] ; Catherine Mckenzie [Nouvelle-Zélande]Source :
- The Science of the total environment [ 1879-1026 ] ; 2020.
Abstract
There is increasing interest in the potential of trees to sequester carbon (C) in above- and below-ground stocks to mitigate against increasing concentrations of greenhouse gases (GHG). This study determined whether pasture-tree (PT) systems influence soil C stocks compared with open pasture (OP) by sampling four sites with trees aged 14 to16 years. Poplars (Populus spp.) at Tikokino and Woodville and alders (Alnus spp.) at Poukawa and Ruakura were planted on contrasting soils (Haplustands, Endoaquepts, Durustalfs and Humaquepts, respectively). Trees at all four sites were arranged in partial-Nelder radial planting designs, with five stem densities ranging from 67 to 1276 stems ha-1. Soils were sampled at five stem density classes, along with adjacent OP areas in the same paddock, to a depth of 1 m (0-75, 75-150, 150-300, 300-600, 600-1000 mm). At three of the four sites, root mass density was greater (P < 0.05) in PT than in OP systems. At Woodville, estimates of total soil C mass to 1 m tended to be greater (P = 0.08) in the OP than in the PT system (200 vs. 163 Mg C ha-1, respectively), whereas no significant differences in total soil C masses between OP and PT were shown at the remaining sites (P > 0.10). Despite the limited statistical significance, estimates of total soil C mass at Tikokino and Woodville (sites with poplars) were 11 and 18% greater in OP than in PT systems, whereas estimates at Poukawa and Ruakura (sites with alders) were 2 and 6% greater in PT than in OP systems. Under the current conditions, our study suggests that tree species may be an additional factor influencing the C cycle and C accumulation in soils and need to be considered in the building of our soil C inventories.
DOI: 10.1016/j.scitotenv.2020.136910
PubMed: 32045969
Affiliations:
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Electronic address: alec.mackay@agresearch.co.nz.</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North</wicri:regionArea><wicri:noRegion>Palmerston North</wicri:noRegion></affiliation></author><author><name sortKey="Vibart, Ronaldo" sort="Vibart, Ronaldo" uniqKey="Vibart R" first="Ronaldo" last="Vibart">Ronaldo Vibart</name><affiliation wicri:level="1"><nlm:affiliation>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand.</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North</wicri:regionArea><wicri:noRegion>Palmerston North</wicri:noRegion></affiliation></author><author><name sortKey="Dodd, Mike" sort="Dodd, Mike" uniqKey="Dodd M" first="Mike" last="Dodd">Mike Dodd</name><affiliation wicri:level="1"><nlm:affiliation>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand.</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North</wicri:regionArea><wicri:noRegion>Palmerston North</wicri:noRegion></affiliation></author><author><name sortKey="Mcivor, Ian" sort="Mcivor, Ian" uniqKey="Mcivor I" first="Ian" last="Mcivor">Ian Mcivor</name><affiliation wicri:level="1"><nlm:affiliation>Plant and Food Research, Private Bag 11030, Palmerston North, New Zealand.</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Plant and Food Research, Private Bag 11030, Palmerston North</wicri:regionArea><wicri:noRegion>Palmerston North</wicri:noRegion></affiliation></author><author><name sortKey="Mckenzie, Catherine" sort="Mckenzie, Catherine" uniqKey="Mckenzie C" first="Catherine" last="Mckenzie">Catherine Mckenzie</name><affiliation wicri:level="1"><nlm:affiliation>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand.</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North</wicri:regionArea><wicri:noRegion>Palmerston North</wicri:noRegion></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></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">There is increasing interest in the potential of trees to sequester carbon (C) in above- and below-ground stocks to mitigate against increasing concentrations of greenhouse gases (GHG). This study determined whether pasture-tree (PT) systems influence soil C stocks compared with open pasture (OP) by sampling four sites with trees aged 14 to16 years. Poplars (Populus spp.) at Tikokino and Woodville and alders (Alnus spp.) at Poukawa and Ruakura were planted on contrasting soils (Haplustands, Endoaquepts, Durustalfs and Humaquepts, respectively). Trees at all four sites were arranged in partial-Nelder radial planting designs, with five stem densities ranging from 67 to 1276 stems ha<sup>-</sup><sup>1</sup>. Soils were sampled at five stem density classes, along with adjacent OP areas in the same paddock, to a depth of 1 m (0-75, 75-150, 150-300, 300-600, 600-1000 mm). At three of the four sites, root mass density was greater (P < 0.05) in PT than in OP systems. At Woodville, estimates of total soil C mass to 1 m tended to be greater (P = 0.08) in the OP than in the PT system (200 vs. 163 Mg C ha<sup>-</sup><sup>1</sup>, respectively), whereas no significant differences in total soil C masses between OP and PT were shown at the remaining sites (P > 0.10). Despite the limited statistical significance, estimates of total soil C mass at Tikokino and Woodville (sites with poplars) were 11 and 18% greater in OP than in PT systems, whereas estimates at Poukawa and Ruakura (sites with alders) were 2 and 6% greater in PT than in OP systems. Under the current conditions, our study suggests that tree species may be an additional factor influencing the C cycle and C accumulation in soils and need to be considered in the building of our soil C inventories.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">32045969</PMID><DateCompleted><Year>2020</Year><Month>03</Month><Day>03</Day></DateCompleted><DateRevised><Year>2020</Year><Month>03</Month><Day>03</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-1026</ISSN><JournalIssue CitedMedium="Internet"><Volume>715</Volume><PubDate><Year>2020</Year><Month>May</Month><Day>01</Day></PubDate></JournalIssue><Title>The Science of the total environment</Title><ISOAbbreviation>Sci Total Environ</ISOAbbreviation></Journal><ArticleTitle>Soil carbon stocks under grazed pasture and pasture-tree systems.</ArticleTitle><Pagination><MedlinePgn>136910</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0048-9697(20)30420-4</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.scitotenv.2020.136910</ELocationID><Abstract><AbstractText>There is increasing interest in the potential of trees to sequester carbon (C) in above- and below-ground stocks to mitigate against increasing concentrations of greenhouse gases (GHG). This study determined whether pasture-tree (PT) systems influence soil C stocks compared with open pasture (OP) by sampling four sites with trees aged 14 to16 years. Poplars (Populus spp.) at Tikokino and Woodville and alders (Alnus spp.) at Poukawa and Ruakura were planted on contrasting soils (Haplustands, Endoaquepts, Durustalfs and Humaquepts, respectively). Trees at all four sites were arranged in partial-Nelder radial planting designs, with five stem densities ranging from 67 to 1276 stems ha<sup>-</sup><sup>1</sup>. Soils were sampled at five stem density classes, along with adjacent OP areas in the same paddock, to a depth of 1 m (0-75, 75-150, 150-300, 300-600, 600-1000 mm). At three of the four sites, root mass density was greater (P < 0.05) in PT than in OP systems. At Woodville, estimates of total soil C mass to 1 m tended to be greater (P = 0.08) in the OP than in the PT system (200 vs. 163 Mg C ha<sup>-</sup><sup>1</sup>, respectively), whereas no significant differences in total soil C masses between OP and PT were shown at the remaining sites (P > 0.10). Despite the limited statistical significance, estimates of total soil C mass at Tikokino and Woodville (sites with poplars) were 11 and 18% greater in OP than in PT systems, whereas estimates at Poukawa and Ruakura (sites with alders) were 2 and 6% greater in PT than in OP systems. Under the current conditions, our study suggests that tree species may be an additional factor influencing the C cycle and C accumulation in soils and need to be considered in the building of our soil C inventories.</AbstractText><CopyrightInformation>Copyright © 2018 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Douglas</LastName><ForeName>Grant</ForeName><Initials>G</Initials><AffiliationInfo><Affiliation>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Mackay</LastName><ForeName>Alec</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand. Electronic address: alec.mackay@agresearch.co.nz.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Vibart</LastName><ForeName>Ronaldo</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dodd</LastName><ForeName>Mike</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>McIvor</LastName><ForeName>Ian</ForeName><Initials>I</Initials><AffiliationInfo><Affiliation>Plant and Food Research, Private Bag 11030, Palmerston North, New Zealand.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>McKenzie</LastName><ForeName>Catherine</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>AgResearch, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>01</Month><Day>24</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Sci Total Environ</MedlineTA><NlmUniqueID>0330500</NlmUniqueID><ISSNLinking>0048-9697</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Alders (Alnus spp.)</Keyword><Keyword MajorTopicYN="N">Grazing</Keyword><Keyword MajorTopicYN="N">Pasture-tree systems</Keyword><Keyword MajorTopicYN="N">Poplars (Populus spp.)</Keyword><Keyword MajorTopicYN="N">Soil carbon</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>09</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>01</Month><Day>20</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>01</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>2</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>2</Month><Day>13</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>2</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32045969</ArticleId><ArticleId IdType="pii">S0048-9697(20)30420-4</ArticleId><ArticleId IdType="doi">10.1016/j.scitotenv.2020.136910</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Nouvelle-Zélande</li></country></list><tree><country name="Nouvelle-Zélande"><noRegion><name sortKey="Douglas, Grant" sort="Douglas, Grant" uniqKey="Douglas G" first="Grant" last="Douglas">Grant Douglas</name></noRegion><name sortKey="Dodd, Mike" sort="Dodd, Mike" uniqKey="Dodd M" first="Mike" last="Dodd">Mike Dodd</name><name sortKey="Mackay, Alec" sort="Mackay, Alec" uniqKey="Mackay A" first="Alec" last="Mackay">Alec Mackay</name><name sortKey="Mcivor, Ian" sort="Mcivor, Ian" uniqKey="Mcivor I" first="Ian" last="Mcivor">Ian Mcivor</name><name sortKey="Mckenzie, Catherine" sort="Mckenzie, Catherine" uniqKey="Mckenzie C" first="Catherine" last="Mckenzie">Catherine Mckenzie</name><name sortKey="Vibart, Ronaldo" sort="Vibart, Ronaldo" uniqKey="Vibart R" first="Ronaldo" last="Vibart">Ronaldo Vibart</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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