How many samples are required? Evaluating a model for verification of carbon sequestration in a hybrid poplar buffer strip.
Identifieur interne : 004020 ( Main/Exploration ); précédent : 004019; suivant : 004021How many samples are required? Evaluating a model for verification of carbon sequestration in a hybrid poplar buffer strip.
Auteurs : Richard A. Ney [États-Unis] ; Troy A. Meyers ; Africa Espina ; Jerald L. SchnoorSource :
- Environmental monitoring and assessment [ 0167-6369 ] ; 2005.
Descripteurs français
- KwdFr :
- Carbone (analyse), Carbone (métabolisme), Effet de serre (MeSH), Incertitude (MeSH), Iowa (MeSH), Modèles théoriques (MeSH), Populus (croissance et développement), Populus (métabolisme), Rivières (MeSH), Sol (analyse), Surveillance de l'environnement (méthodes), Surveillance de l'environnement (statistiques et données numériques), Taille de l'échantillon (MeSH).
- MESH :
- analyse : Carbone, Sol.
- croissance et développement : Populus.
- métabolisme : Carbone, Populus.
- méthodes : Surveillance de l'environnement.
- statistiques et données numériques : Surveillance de l'environnement.
- Effet de serre, Incertitude, Iowa, Modèles théoriques, Rivières, Taille de l'échantillon.
English descriptors
- KwdEn :
- Carbon (analysis), Carbon (metabolism), Environmental Monitoring (methods), Environmental Monitoring (statistics & numerical data), Greenhouse Effect (MeSH), Iowa (MeSH), Models, Theoretical (MeSH), Populus (growth & development), Populus (metabolism), Rivers (MeSH), Sample Size (MeSH), Soil (analysis), Uncertainty (MeSH).
- MESH :
- chemical , analysis : Carbon, Soil.
- chemical , metabolism : Carbon.
- growth & development : Populus.
- metabolism : Populus.
- methods : Environmental Monitoring.
- statistics & numerical data : Environmental Monitoring.
- Greenhouse Effect, Iowa, Models, Theoretical, Rivers, Sample Size, Uncertainty.
Abstract
A model is developed to predict annual and total above-ground carbon storage within a hybrid poplar stream buffer. The regression model predicts tree wet weight based upon circumference at breast-height (137 cm) with an r-square value of 0.9922. Carbon storage in above-ground biomass is estimated to be 3.57 to 3.71 metric tons per hectare, with a measured annual increment of 0.92 to 1.37 metric ton per hectare per year. The variability of carbon storage within this biological system, including soil organic matter, is explored, and the number of samples required to achieve a desired level of statistical certainty are predicted. As has been investigated previously for other biological systems (Garten and Wullschleger, 1999), the study shows that a prohibitively large number of samples must be taken in order to achieve high degrees of certainty about mean carbon storage values. The study also shows, however, that mean values with somewhat greater uncertainties can easily be achieved with much smaller sample sizes. Thus carbon sequestration verification might be accomplished cost-effectively if the degree of certainty required is not unrealistically high for highly variable natural systems.
DOI: 10.1007/s10661-005-6393-8
PubMed: 15869197
Affiliations:
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Meyers</name></author><author><name sortKey="Espina, Africa" sort="Espina, Africa" uniqKey="Espina A" first="Africa" last="Espina">Africa Espina</name></author><author><name sortKey="Schnoor, Jerald L" sort="Schnoor, Jerald L" uniqKey="Schnoor J" first="Jerald L" last="Schnoor">Jerald L. Schnoor</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="RBID">pubmed:15869197</idno><idno type="pmid">15869197</idno><idno type="doi">10.1007/s10661-005-6393-8</idno><idno type="wicri:Area/Main/Corpus">004067</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">004067</idno><idno type="wicri:Area/Main/Curation">004067</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">004067</idno><idno type="wicri:Area/Main/Exploration">004067</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">How many samples are required? 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The regression model predicts tree wet weight based upon circumference at breast-height (137 cm) with an r-square value of 0.9922. Carbon storage in above-ground biomass is estimated to be 3.57 to 3.71 metric tons per hectare, with a measured annual increment of 0.92 to 1.37 metric ton per hectare per year. The variability of carbon storage within this biological system, including soil organic matter, is explored, and the number of samples required to achieve a desired level of statistical certainty are predicted. As has been investigated previously for other biological systems (Garten and Wullschleger, 1999), the study shows that a prohibitively large number of samples must be taken in order to achieve high degrees of certainty about mean carbon storage values. The study also shows, however, that mean values with somewhat greater uncertainties can easily be achieved with much smaller sample sizes. Thus carbon sequestration verification might be accomplished cost-effectively if the degree of certainty required is not unrealistically high for highly variable natural systems.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15869197</PMID><DateCompleted><Year>2005</Year><Month>08</Month><Day>23</Day></DateCompleted><DateRevised><Year>2019</Year><Month>11</Month><Day>09</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0167-6369</ISSN><JournalIssue CitedMedium="Print"><Volume>102</Volume><Issue>1-3</Issue><PubDate><Year>2005</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Environmental monitoring and assessment</Title><ISOAbbreviation>Environ Monit Assess</ISOAbbreviation></Journal><ArticleTitle>How many samples are required? Evaluating a model for verification of carbon sequestration in a hybrid poplar buffer strip.</ArticleTitle><Pagination><MedlinePgn>375-88</MedlinePgn></Pagination><Abstract><AbstractText>A model is developed to predict annual and total above-ground carbon storage within a hybrid poplar stream buffer. The regression model predicts tree wet weight based upon circumference at breast-height (137 cm) with an r-square value of 0.9922. Carbon storage in above-ground biomass is estimated to be 3.57 to 3.71 metric tons per hectare, with a measured annual increment of 0.92 to 1.37 metric ton per hectare per year. The variability of carbon storage within this biological system, including soil organic matter, is explored, and the number of samples required to achieve a desired level of statistical certainty are predicted. As has been investigated previously for other biological systems (Garten and Wullschleger, 1999), the study shows that a prohibitively large number of samples must be taken in order to achieve high degrees of certainty about mean carbon storage values. The study also shows, however, that mean values with somewhat greater uncertainties can easily be achieved with much smaller sample sizes. Thus carbon sequestration verification might be accomplished cost-effectively if the degree of certainty required is not unrealistically high for highly variable natural systems.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ney</LastName><ForeName>Richard A</ForeName><Initials>RA</Initials><AffiliationInfo><Affiliation>Center for Global and Regional Environmental Research, University of Iowa, Iowa City, Iowa, USA. rney@sebesta.com</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Meyers</LastName><ForeName>Troy A</ForeName><Initials>TA</Initials></Author><Author ValidYN="Y"><LastName>Espina</LastName><ForeName>Africa</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Schnoor</LastName><ForeName>Jerald L</ForeName><Initials>JL</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Environ Monit Assess</MedlineTA><NlmUniqueID>8508350</NlmUniqueID><ISSNLinking>0167-6369</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-44-0</RegistryNumber><NameOfSubstance UI="D002244">Carbon</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002244" MajorTopicYN="N">Carbon</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004784" MajorTopicYN="N">Environmental Monitoring</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="N">methods</QualifierName><QualifierName UI="Q000706" MajorTopicYN="Y">statistics & numerical data</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017752" MajorTopicYN="N">Greenhouse Effect</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007484" MajorTopicYN="N">Iowa</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008962" MajorTopicYN="Y">Models, Theoretical</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D045483" MajorTopicYN="N">Rivers</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018401" MajorTopicYN="N">Sample Size</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D035501" MajorTopicYN="N">Uncertainty</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>5</Month><Day>5</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2005</Year><Month>8</Month><Day>24</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>5</Month><Day>5</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15869197</ArticleId><ArticleId IdType="doi">10.1007/s10661-005-6393-8</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Science. 1993 May 28;260(5112):1314-7</Citation><ArticleIdList><ArticleId IdType="pubmed">17755426</ArticleId></ArticleIdList></Reference><Reference><Citation>Environ Monit Assess. 2002 Sep;78(3):291-307</Citation><ArticleIdList><ArticleId IdType="pubmed">12374393</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 2000 Sep 15;289(5486):1922-5</Citation><ArticleIdList><ArticleId IdType="pubmed">10988070</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 1999 May 14;284(5417):1177-9</Citation><ArticleIdList><ArticleId IdType="pubmed">10325230</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 2001 Jun 22;292(5525):2316-20</Citation><ArticleIdList><ArticleId IdType="pubmed">11423659</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Iowa</li></region><settlement><li>Iowa City</li></settlement><orgName><li>Université de l'Iowa</li></orgName></list><tree><noCountry><name sortKey="Espina, Africa" sort="Espina, Africa" uniqKey="Espina A" first="Africa" last="Espina">Africa Espina</name><name sortKey="Meyers, Troy A" sort="Meyers, Troy A" uniqKey="Meyers T" first="Troy A" last="Meyers">Troy A. Meyers</name><name sortKey="Schnoor, Jerald L" sort="Schnoor, Jerald L" uniqKey="Schnoor J" first="Jerald L" last="Schnoor">Jerald L. Schnoor</name></noCountry><country name="États-Unis"><region name="Iowa"><name sortKey="Ney, Richard A" sort="Ney, Richard A" uniqKey="Ney R" first="Richard A" last="Ney">Richard A. Ney</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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