Recent changes in the riparian forest of a large regulated Mediterranean river: implications for management.
Identifieur interne : 003144 ( Main/Exploration ); précédent : 003143; suivant : 003145Recent changes in the riparian forest of a large regulated Mediterranean river: implications for management.
Auteurs : Eduardo González [Espagne] ; María González-Sanchis ; Alvaro Cabezas ; Francisco A. Comín ; Etienne MullerSource :
- Environmental management [ 1432-1009 ] ; 2010.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Arbres.
- Conservation des ressources naturelles, Espagne, Inondations, Rivières, Région méditerranéenne, Science forêt, Surveillance de l'environnement.
- Wicri :
- geographic : Espagne.
English descriptors
- KwdEn :
- MESH :
- geographic : Mediterranean Region, Spain.
- growth & development : Trees.
- Conservation of Natural Resources, Environmental Monitoring, Floods, Forestry, Rivers.
Abstract
The structure of the floodplain forests of the Middle Ebro River (NE Spain) was examined at patch and landscape scales along a three-step chronosequence defined according to the extent of flow regulation-induced hydrogeomorphic changes, with the ultimate purpose of producing baseline information to guide through management and restoration plans. At patch scale, a total of 6,891 stems within 39 plots were registered for species, diameter and health status. The stem density, size class distribution, canopy dieback and mortality were further compared by means of non-parametric tests. At landscape scale, the temporal evolution of the area occupied by forest stands of different ages in the floodplain along the chronosequence was evaluated using four sets of aerial photographs dated in 1927, 1957, 1981 and 2003. The within-patch structure of pioneer forests (<25-30 years old) was characterized by dense and healthy populations of pioneer species (Populus nigra, Salix alba and Tamarix spp.), but the area occupied by these forest types has progressively decreased (up to 37%) since the intensification of river regulation (ca. 1957). In contrast, non-pioneer forests (>25-30 years old) were characterized by declining and sparse P. nigra-S. alba-Tamarix spp. stands, where late-seral species such as Ulmus minor and Fraxinus angustifolia were frequent, but only as small-size stems. At landscape scale, these type of senescent forests have doubled their surface after river regulation was intensified. Populus alba only appeared in the oldest plots recorded (colonized before 1957), suggesting sexual regeneration failure during the last five decades, but usually as healthy and dense stands. Based on these findings, measures principally aimed at recovering some hydrogeomorphic dynamism are recommended to guarantee the self-sustainability of the floodplain forest ecosystem.
DOI: 10.1007/s00267-010-9441-2
PubMed: 20145922
Affiliations:
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Comín</name></author><author><name sortKey="Muller, Etienne" sort="Muller, Etienne" uniqKey="Muller E" first="Etienne" last="Muller">Etienne Muller</name></author></analytic><series><title level="j">Environmental management</title><idno type="eISSN">1432-1009</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Conservation of Natural Resources (MeSH)</term><term>Environmental Monitoring (MeSH)</term><term>Floods (MeSH)</term><term>Forestry (MeSH)</term><term>Mediterranean Region (MeSH)</term><term>Rivers (MeSH)</term><term>Spain (MeSH)</term><term>Trees (growth & development)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Arbres (croissance et développement)</term><term>Conservation des ressources naturelles (MeSH)</term><term>Espagne (MeSH)</term><term>Inondations (MeSH)</term><term>Rivières (MeSH)</term><term>Région méditerranéenne (MeSH)</term><term>Science forêt (MeSH)</term><term>Surveillance de l'environnement (MeSH)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Mediterranean Region</term><term>Spain</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Arbres</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Trees</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Conservation of Natural Resources</term><term>Environmental Monitoring</term><term>Floods</term><term>Forestry</term><term>Rivers</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Conservation des ressources naturelles</term><term>Espagne</term><term>Inondations</term><term>Rivières</term><term>Région méditerranéenne</term><term>Science forêt</term><term>Surveillance de l'environnement</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Espagne</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The structure of the floodplain forests of the Middle Ebro River (NE Spain) was examined at patch and landscape scales along a three-step chronosequence defined according to the extent of flow regulation-induced hydrogeomorphic changes, with the ultimate purpose of producing baseline information to guide through management and restoration plans. At patch scale, a total of 6,891 stems within 39 plots were registered for species, diameter and health status. The stem density, size class distribution, canopy dieback and mortality were further compared by means of non-parametric tests. At landscape scale, the temporal evolution of the area occupied by forest stands of different ages in the floodplain along the chronosequence was evaluated using four sets of aerial photographs dated in 1927, 1957, 1981 and 2003. The within-patch structure of pioneer forests (<25-30 years old) was characterized by dense and healthy populations of pioneer species (Populus nigra, Salix alba and Tamarix spp.), but the area occupied by these forest types has progressively decreased (up to 37%) since the intensification of river regulation (ca. 1957). In contrast, non-pioneer forests (>25-30 years old) were characterized by declining and sparse P. nigra-S. alba-Tamarix spp. stands, where late-seral species such as Ulmus minor and Fraxinus angustifolia were frequent, but only as small-size stems. At landscape scale, these type of senescent forests have doubled their surface after river regulation was intensified. Populus alba only appeared in the oldest plots recorded (colonized before 1957), suggesting sexual regeneration failure during the last five decades, but usually as healthy and dense stands. Based on these findings, measures principally aimed at recovering some hydrogeomorphic dynamism are recommended to guarantee the self-sustainability of the floodplain forest ecosystem.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20145922</PMID><DateCompleted><Year>2010</Year><Month>07</Month><Day>09</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-1009</ISSN><JournalIssue CitedMedium="Internet"><Volume>45</Volume><Issue>4</Issue><PubDate><Year>2010</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Environmental management</Title><ISOAbbreviation>Environ Manage</ISOAbbreviation></Journal><ArticleTitle>Recent changes in the riparian forest of a large regulated Mediterranean river: implications for management.</ArticleTitle><Pagination><MedlinePgn>669-81</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00267-010-9441-2</ELocationID><Abstract><AbstractText>The structure of the floodplain forests of the Middle Ebro River (NE Spain) was examined at patch and landscape scales along a three-step chronosequence defined according to the extent of flow regulation-induced hydrogeomorphic changes, with the ultimate purpose of producing baseline information to guide through management and restoration plans. At patch scale, a total of 6,891 stems within 39 plots were registered for species, diameter and health status. The stem density, size class distribution, canopy dieback and mortality were further compared by means of non-parametric tests. At landscape scale, the temporal evolution of the area occupied by forest stands of different ages in the floodplain along the chronosequence was evaluated using four sets of aerial photographs dated in 1927, 1957, 1981 and 2003. The within-patch structure of pioneer forests (<25-30 years old) was characterized by dense and healthy populations of pioneer species (Populus nigra, Salix alba and Tamarix spp.), but the area occupied by these forest types has progressively decreased (up to 37%) since the intensification of river regulation (ca. 1957). In contrast, non-pioneer forests (>25-30 years old) were characterized by declining and sparse P. nigra-S. alba-Tamarix spp. stands, where late-seral species such as Ulmus minor and Fraxinus angustifolia were frequent, but only as small-size stems. At landscape scale, these type of senescent forests have doubled their surface after river regulation was intensified. Populus alba only appeared in the oldest plots recorded (colonized before 1957), suggesting sexual regeneration failure during the last five decades, but usually as healthy and dense stands. Based on these findings, measures principally aimed at recovering some hydrogeomorphic dynamism are recommended to guarantee the self-sustainability of the floodplain forest ecosystem.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>González</LastName><ForeName>Eduardo</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Pyrenean Institute of Ecology (IPE), Spanish National Research Council (CSIC), Avda. Montañana 1005, 50192, Zaragoza, Spain. edusargas@ipe.csic.es</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>González-Sanchis</LastName><ForeName>María</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Cabezas</LastName><ForeName>Alvaro</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Comín</LastName><ForeName>Francisco A</ForeName><Initials>FA</Initials></Author><Author ValidYN="Y"><LastName>Muller</LastName><ForeName>Etienne</ForeName><Initials>E</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2010</Year><Month>02</Month><Day>10</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Environ Manage</MedlineTA><NlmUniqueID>7703893</NlmUniqueID><ISSNLinking>0364-152X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D003247" MajorTopicYN="Y">Conservation of Natural Resources</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004784" MajorTopicYN="N">Environmental Monitoring</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055868" MajorTopicYN="Y">Floods</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016468" MajorTopicYN="Y">Forestry</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019083" MajorTopicYN="N" Type="Geographic">Mediterranean Region</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D045483" MajorTopicYN="Y">Rivers</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013030" MajorTopicYN="N" Type="Geographic">Spain</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2009</Year><Month>03</Month><Day>17</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2010</Year><Month>01</Month><Day>08</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>2</Month><Day>11</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>2</Month><Day>11</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>7</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20145922</ArticleId><ArticleId IdType="doi">10.1007/s00267-010-9441-2</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>C R Biol. 2002 Nov;325(11):1129-41</Citation><ArticleIdList><ArticleId IdType="pubmed">12506726</ArticleId></ArticleIdList></Reference><Reference><Citation>Oecologia. 1997 Jun;111(1):12-18</Citation><ArticleIdList><ArticleId IdType="pubmed">28307496</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list><country><li>Espagne</li></country></list><tree><noCountry><name sortKey="Cabezas, Alvaro" sort="Cabezas, Alvaro" uniqKey="Cabezas A" first="Alvaro" last="Cabezas">Alvaro Cabezas</name><name sortKey="Comin, Francisco A" sort="Comin, Francisco A" uniqKey="Comin F" first="Francisco A" last="Comín">Francisco A. Comín</name><name sortKey="Gonzalez Sanchis, Maria" sort="Gonzalez Sanchis, Maria" uniqKey="Gonzalez Sanchis M" first="María" last="González-Sanchis">María González-Sanchis</name><name sortKey="Muller, Etienne" sort="Muller, Etienne" uniqKey="Muller E" first="Etienne" last="Muller">Etienne Muller</name></noCountry><country name="Espagne"><noRegion><name sortKey="Gonzalez, Eduardo" sort="Gonzalez, Eduardo" uniqKey="Gonzalez E" first="Eduardo" last="González">Eduardo González</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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