Present-day vegetation helps quantifying past land cover in selected regions of the Czech Republic.
Identifieur interne : 001092 ( Main/Corpus ); précédent : 001091; suivant : 001093Present-day vegetation helps quantifying past land cover in selected regions of the Czech Republic.
Auteurs : Vojt Ch Abraham ; Veronika Oušková ; Petr KunešSource :
- PloS one [ 1932-6203 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
- geographic : Czech Republic.
- Ecosystem, Fossils, Models, Theoretical, Plants, Pollen, Wind.
Abstract
The REVEALS model is a tool for recalculating pollen data into vegetation abundances on a regional scale. We explored the general effect of selected parameters by performing simulations and ascertained the best model setting for the Czech Republic using the shallowest samples from 120 fossil sites and data on actual regional vegetation (60 km radius). Vegetation proportions of 17 taxa were obtained by combining the CORINE Land Cover map with forest inventories, agricultural statistics and habitat mapping data. Our simulation shows that changing the site radius for all taxa substantially affects REVEALS estimates of taxa with heavy or light pollen grains. Decreasing the site radius has a similar effect as increasing the wind speed parameter. However, adjusting the site radius to 1 m for local taxa only (even taxa with light pollen) yields lower, more correct estimates despite their high pollen signal. Increasing the background radius does not affect the estimates significantly. Our comparison of estimates with actual vegetation in seven regions shows that the most accurate relative pollen productivity estimates (PPEs) come from Central Europe and Southern Sweden. The initial simulation and pollen data yielded unrealistic estimates for Abies under the default setting of the wind speed parameter (3 m/s). We therefore propose the setting of 4 m/s, which corresponds to the spring average in most regions of the Czech Republic studied. Ad hoc adjustment of PPEs with this setting improves the match 3-4-fold. We consider these values (apart from four exceptions) to be appropriate, because they are within the ranges of standard errors, so they are related to original PPEs. Setting a 1 m radius for local taxa (Alnus, Salix, Poaceae) significantly improves the match between estimates and actual vegetation. However, further adjustments to PPEs exceed the ranges of original values, so their relevance is uncertain.
DOI: 10.1371/journal.pone.0100117
PubMed: 24936973
PubMed Central: PMC4061133
Links to Exploration step
pubmed:24936973Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Present-day vegetation helps quantifying past land cover in selected regions of the Czech Republic.</title><author><name sortKey="Abraham, Vojt Ch" sort="Abraham, Vojt Ch" uniqKey="Abraham V" first="Vojt Ch" last="Abraham">Vojt Ch Abraham</name><affiliation><nlm:affiliation>Department of Botany, Faculty of Science, Charles University in Prague, Prague, Czech Republic; Department of Botany, Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic.</nlm:affiliation></affiliation></author><author><name sortKey="Ouskova, Veronika" sort="Ouskova, Veronika" uniqKey="Ouskova V" first="Veronika" last="Oušková">Veronika Oušková</name><affiliation><nlm:affiliation>Nature Conservation Agency of the Czech Republic, Prague, Czech Republic.</nlm:affiliation></affiliation></author><author><name sortKey="Kunes, Petr" sort="Kunes, Petr" uniqKey="Kunes P" first="Petr" last="Kuneš">Petr Kuneš</name><affiliation><nlm:affiliation>Department of Botany, Faculty of Science, Charles University in Prague, Prague, Czech Republic; Institute of Botany of the Academy of Sciences of the Czech Republic, Průhonice, Czech Republic.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2014">2014</date><idno type="RBID">pubmed:24936973</idno><idno type="pmid">24936973</idno><idno type="doi">10.1371/journal.pone.0100117</idno><idno type="pmc">PMC4061133</idno><idno type="wicri:Area/Main/Corpus">001092</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001092</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Present-day vegetation helps quantifying past land cover in selected regions of the Czech Republic.</title><author><name sortKey="Abraham, Vojt Ch" sort="Abraham, Vojt Ch" uniqKey="Abraham V" first="Vojt Ch" last="Abraham">Vojt Ch Abraham</name><affiliation><nlm:affiliation>Department of Botany, Faculty of Science, Charles University in Prague, Prague, Czech Republic; Department of Botany, Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic.</nlm:affiliation></affiliation></author><author><name sortKey="Ouskova, Veronika" sort="Ouskova, Veronika" uniqKey="Ouskova V" first="Veronika" last="Oušková">Veronika Oušková</name><affiliation><nlm:affiliation>Nature Conservation Agency of the Czech Republic, Prague, Czech Republic.</nlm:affiliation></affiliation></author><author><name sortKey="Kunes, Petr" sort="Kunes, Petr" uniqKey="Kunes P" first="Petr" last="Kuneš">Petr Kuneš</name><affiliation><nlm:affiliation>Department of Botany, Faculty of Science, Charles University in Prague, Prague, Czech Republic; Institute of Botany of the Academy of Sciences of the Czech Republic, Průhonice, Czech Republic.</nlm:affiliation></affiliation></author></analytic><series><title level="j">PloS one</title><idno type="eISSN">1932-6203</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Czech Republic (MeSH)</term><term>Ecosystem (MeSH)</term><term>Fossils (MeSH)</term><term>Models, Theoretical (MeSH)</term><term>Plants (MeSH)</term><term>Pollen (MeSH)</term><term>Wind (MeSH)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Czech Republic</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Ecosystem</term><term>Fossils</term><term>Models, Theoretical</term><term>Plants</term><term>Pollen</term><term>Wind</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The REVEALS model is a tool for recalculating pollen data into vegetation abundances on a regional scale. We explored the general effect of selected parameters by performing simulations and ascertained the best model setting for the Czech Republic using the shallowest samples from 120 fossil sites and data on actual regional vegetation (60 km radius). Vegetation proportions of 17 taxa were obtained by combining the CORINE Land Cover map with forest inventories, agricultural statistics and habitat mapping data. Our simulation shows that changing the site radius for all taxa substantially affects REVEALS estimates of taxa with heavy or light pollen grains. Decreasing the site radius has a similar effect as increasing the wind speed parameter. However, adjusting the site radius to 1 m for local taxa only (even taxa with light pollen) yields lower, more correct estimates despite their high pollen signal. Increasing the background radius does not affect the estimates significantly. Our comparison of estimates with actual vegetation in seven regions shows that the most accurate relative pollen productivity estimates (PPEs) come from Central Europe and Southern Sweden. The initial simulation and pollen data yielded unrealistic estimates for Abies under the default setting of the wind speed parameter (3 m/s). We therefore propose the setting of 4 m/s, which corresponds to the spring average in most regions of the Czech Republic studied. Ad hoc adjustment of PPEs with this setting improves the match 3-4-fold. We consider these values (apart from four exceptions) to be appropriate, because they are within the ranges of standard errors, so they are related to original PPEs. Setting a 1 m radius for local taxa (Alnus, Salix, Poaceae) significantly improves the match between estimates and actual vegetation. However, further adjustments to PPEs exceed the ranges of original values, so their relevance is uncertain. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">24936973</PMID><DateCompleted><Year>2015</Year><Month>10</Month><Day>20</Day></DateCompleted><DateRevised><Year>2017</Year><Month>09</Month><Day>22</Day></DateRevised><Article PubModel="Electronic-eCollection"><Journal><ISSN IssnType="Electronic">1932-6203</ISSN><JournalIssue CitedMedium="Internet"><Volume>9</Volume><Issue>6</Issue><PubDate><Year>2014</Year></PubDate></JournalIssue><Title>PloS one</Title><ISOAbbreviation>PLoS One</ISOAbbreviation></Journal><ArticleTitle>Present-day vegetation helps quantifying past land cover in selected regions of the Czech Republic.</ArticleTitle><Pagination><MedlinePgn>e100117</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1371/journal.pone.0100117</ELocationID><Abstract><AbstractText>The REVEALS model is a tool for recalculating pollen data into vegetation abundances on a regional scale. We explored the general effect of selected parameters by performing simulations and ascertained the best model setting for the Czech Republic using the shallowest samples from 120 fossil sites and data on actual regional vegetation (60 km radius). Vegetation proportions of 17 taxa were obtained by combining the CORINE Land Cover map with forest inventories, agricultural statistics and habitat mapping data. Our simulation shows that changing the site radius for all taxa substantially affects REVEALS estimates of taxa with heavy or light pollen grains. Decreasing the site radius has a similar effect as increasing the wind speed parameter. However, adjusting the site radius to 1 m for local taxa only (even taxa with light pollen) yields lower, more correct estimates despite their high pollen signal. Increasing the background radius does not affect the estimates significantly. Our comparison of estimates with actual vegetation in seven regions shows that the most accurate relative pollen productivity estimates (PPEs) come from Central Europe and Southern Sweden. The initial simulation and pollen data yielded unrealistic estimates for Abies under the default setting of the wind speed parameter (3 m/s). We therefore propose the setting of 4 m/s, which corresponds to the spring average in most regions of the Czech Republic studied. Ad hoc adjustment of PPEs with this setting improves the match 3-4-fold. We consider these values (apart from four exceptions) to be appropriate, because they are within the ranges of standard errors, so they are related to original PPEs. Setting a 1 m radius for local taxa (Alnus, Salix, Poaceae) significantly improves the match between estimates and actual vegetation. However, further adjustments to PPEs exceed the ranges of original values, so their relevance is uncertain. </AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Abraham</LastName><ForeName>Vojtěch</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>Department of Botany, Faculty of Science, Charles University in Prague, Prague, Czech Republic; Department of Botany, Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Oušková</LastName><ForeName>Veronika</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>Nature Conservation Agency of the Czech Republic, Prague, Czech Republic.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kuneš</LastName><ForeName>Petr</ForeName><Initials>P</Initials><AffiliationInfo><Affiliation>Department of Botany, Faculty of Science, Charles University in Prague, Prague, Czech Republic; Institute of Botany of the Academy of Sciences of the Czech Republic, Průhonice, Czech Republic.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>278065</GrantID><Agency>European Research Council</Agency><Country>International</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>06</Month><Day>17</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>PLoS One</MedlineTA><NlmUniqueID>101285081</NlmUniqueID><ISSNLinking>1932-6203</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018153" MajorTopicYN="N" Type="Geographic">Czech Republic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005580" MajorTopicYN="Y">Fossils</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008962" MajorTopicYN="Y">Models, Theoretical</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010944" MajorTopicYN="Y">Plants</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011058" MajorTopicYN="Y">Pollen</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014919" MajorTopicYN="N">Wind</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2013</Year><Month>11</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2014</Year><Month>05</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>6</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>6</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2015</Year><Month>10</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>epublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">24936973</ArticleId><ArticleId IdType="doi">10.1371/journal.pone.0100117</ArticleId><ArticleId IdType="pii">PONE-D-13-50118</ArticleId><ArticleId IdType="pmc">PMC4061133</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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