Assessing the Change in Cover of Non-Indigenous Dwarf-Pine Using Aerial Photographs, a Case Study from the Hrubý Jeseník Mts., the Sudetes
Identifieur interne : 000707 ( Main/Exploration ); précédent : 000706; suivant : 000708Assessing the Change in Cover of Non-Indigenous Dwarf-Pine Using Aerial Photographs, a Case Study from the Hrubý Jeseník Mts., the Sudetes
Auteurs : Václav Treml [République tchèque] ; Jan Wild ; Tomáš Chuman [République tchèque] ; Markéta Potů KováSource :
- Journal of Landscape Ecology [ 1803-2427 ] ; 2010-01-01.
English descriptors
Abstract
In addition to ongoing climate change, alpine ecosystems are also threatened by the expansion of non-indigenous species. Expansion of dwarf pine (Pinus mugo Turra) in the Hrubý Jeseník Mts. is an excellent example of the interactions between a planted alpine shrub and alpine ecosystems dominated by grassland species. Based on a comparison of aerial photographs taken in two different periods (1971/73 and 2003) we analyzed spatial changes in the dwarf pine cover. We focused on an evaluation of the current proportion of dwarf pine stands above the upper forest limit, as well as on the effects of stand texture and environmental variables on dwarf pine expansion over this 30 year period. During this time, dwarf pine stands increased their extent by 63%. Small forest-free areas above the upper forest limit in the northern part of the Hrubý Jeseník ridge are currently covered by dwarf pine on more than 30% of their surface. Expansion of dwarf pine was fastest in open, fine-grained stands, often situated in lower altitudes and on north- to east-facing slopes. The dwarf pine expansion was more intense than predicted by simple model of vegetative growth, especially within open stands with short polycormon margins in low altitudes. This might be explained by more intensive growth in less extreme environment and/or by higher generative reproduction on these sites. Finally, we suggest that expanding dwarf pine shrubs and recessing grassland patches negatively affects the abundance of heliophilous alpine plants and insects. We believe that the results of this study could be relevant to ongoing discussions on the management of summit forest-free areas in the Hrubý Jeseník Mts.
Url:
DOI: 10.2478/v10285-012-0029-9
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001301
- to stream Istex, to step Curation: 001301
- to stream Istex, to step Checkpoint: 000024
- to stream Main, to step Merge: 000708
- to stream Main, to step Curation: 000707
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Assessing the Change in Cover of Non-Indigenous Dwarf-Pine Using Aerial Photographs, a Case Study from the Hrubý Jeseník Mts., the Sudetes</title>
<author><name sortKey="Treml, Vaclav" sort="Treml, Vaclav" uniqKey="Treml V" first="Václav" last="Treml">Václav Treml</name>
</author>
<author><name sortKey="Wild, Jan" sort="Wild, Jan" uniqKey="Wild J" first="Jan" last="Wild">Jan Wild</name>
</author>
<author><name sortKey="Chuman, Tomas" sort="Chuman, Tomas" uniqKey="Chuman T" first="Tomáš" last="Chuman">Tomáš Chuman</name>
</author>
<author><name sortKey="Potu Kova, Marketa" sort="Potu Kova, Marketa" uniqKey="Potu Kova M" first="Markéta" last="Potů Ková">Markéta Potů Ková</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:9A64FFFFCF4BD97ECBBF04AFF1C07EA4B4E47A19</idno>
<date when="2012-08-08" year="2012">2012-08-08</date>
<idno type="doi">10.2478/v10285-012-0029-9</idno>
<idno type="url">https://api.istex.fr/document/9A64FFFFCF4BD97ECBBF04AFF1C07EA4B4E47A19/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">001301</idno>
<idno type="wicri:Area/Istex/Curation">001301</idno>
<idno type="wicri:Area/Istex/Checkpoint">000024</idno>
<idno type="wicri:doubleKey">1803-2427:2012:Treml V:assessing:the:change</idno>
<idno type="wicri:Area/Main/Merge">000708</idno>
<idno type="wicri:Area/Main/Curation">000707</idno>
<idno type="wicri:Area/Main/Exploration">000707</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Assessing the Change in Cover of Non-Indigenous Dwarf-Pine Using Aerial Photographs, a Case Study from the Hrubý Jeseník Mts., the Sudetes</title>
<author><name sortKey="Treml, Vaclav" sort="Treml, Vaclav" uniqKey="Treml V" first="Václav" last="Treml">Václav Treml</name>
<affiliation wicri:level="3"><country>République tchèque</country>
<placeName><settlement type="city">Prague</settlement>
<region type="région" nuts="2">Bohême centrale</region>
</placeName>
<wicri:orgArea>Department of Physical Geography and Geoecology, Faculty of Science, Charles University</wicri:orgArea>
</affiliation>
</author>
<author><name sortKey="Wild, Jan" sort="Wild, Jan" uniqKey="Wild J" first="Jan" last="Wild">Jan Wild</name>
</author>
<author><name sortKey="Chuman, Tomas" sort="Chuman, Tomas" uniqKey="Chuman T" first="Tomáš" last="Chuman">Tomáš Chuman</name>
<affiliation wicri:level="3"><country>République tchèque</country>
<placeName><settlement type="city">Prague</settlement>
<region type="région" nuts="2">Bohême centrale</region>
</placeName>
<wicri:orgArea>Department of Physical Geography and Geoecology, Faculty of Science, Charles University</wicri:orgArea>
</affiliation>
</author>
<author><name sortKey="Potu Kova, Marketa" sort="Potu Kova, Marketa" uniqKey="Potu Kova M" first="Markéta" last="Potů Ková">Markéta Potů Ková</name>
<affiliation><wicri:noCountry code="subField">Charles University in Prague</wicri:noCountry>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Journal of Landscape Ecology</title>
<idno type="ISSN">1803-2427</idno>
<imprint><publisher>Versita</publisher>
<date type="published" when="2010-01-01">2010-01-01</date>
<biblScope unit="volume">3</biblScope>
<biblScope unit="issue">2</biblScope>
<biblScope unit="page" from="90">90</biblScope>
<biblScope unit="page" to="104">104</biblScope>
</imprint>
<idno type="ISSN">1803-2427</idno>
</series>
<idno type="istex">9A64FFFFCF4BD97ECBBF04AFF1C07EA4B4E47A19</idno>
<idno type="DOI">10.2478/v10285-012-0029-9</idno>
<idno type="ArticleID">v10285-012-0029-9</idno>
<idno type="Related-article-Href">v10285-012-0029-9.pdf</idno>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">1803-2427</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Hrubý Jeseník</term>
<term>Sudetes</term>
<term>aerial photographs</term>
<term>expansion</term>
<term>object-based classification</term>
</keywords>
</textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">In addition to ongoing climate change, alpine ecosystems are also threatened by the expansion of non-indigenous species. Expansion of dwarf pine (Pinus mugo Turra) in the Hrubý Jeseník Mts. is an excellent example of the interactions between a planted alpine shrub and alpine ecosystems dominated by grassland species. Based on a comparison of aerial photographs taken in two different periods (1971/73 and 2003) we analyzed spatial changes in the dwarf pine cover. We focused on an evaluation of the current proportion of dwarf pine stands above the upper forest limit, as well as on the effects of stand texture and environmental variables on dwarf pine expansion over this 30 year period. During this time, dwarf pine stands increased their extent by 63%. Small forest-free areas above the upper forest limit in the northern part of the Hrubý Jeseník ridge are currently covered by dwarf pine on more than 30% of their surface. Expansion of dwarf pine was fastest in open, fine-grained stands, often situated in lower altitudes and on north- to east-facing slopes. The dwarf pine expansion was more intense than predicted by simple model of vegetative growth, especially within open stands with short polycormon margins in low altitudes. This might be explained by more intensive growth in less extreme environment and/or by higher generative reproduction on these sites. Finally, we suggest that expanding dwarf pine shrubs and recessing grassland patches negatively affects the abundance of heliophilous alpine plants and insects. We believe that the results of this study could be relevant to ongoing discussions on the management of summit forest-free areas in the Hrubý Jeseník Mts.</div>
</front>
</TEI>
<affiliations><list><country><li>République tchèque</li>
</country>
<region><li>Bohême centrale</li>
</region>
<settlement><li>Prague</li>
</settlement>
</list>
<tree><noCountry><name sortKey="Potu Kova, Marketa" sort="Potu Kova, Marketa" uniqKey="Potu Kova M" first="Markéta" last="Potů Ková">Markéta Potů Ková</name>
<name sortKey="Wild, Jan" sort="Wild, Jan" uniqKey="Wild J" first="Jan" last="Wild">Jan Wild</name>
</noCountry>
<country name="République tchèque"><region name="Bohême centrale"><name sortKey="Treml, Vaclav" sort="Treml, Vaclav" uniqKey="Treml V" first="Václav" last="Treml">Václav Treml</name>
</region>
<name sortKey="Chuman, Tomas" sort="Chuman, Tomas" uniqKey="Chuman T" first="Tomáš" last="Chuman">Tomáš Chuman</name>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Musique/explor/OperaV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000707 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000707 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Musique |area= OperaV1 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:9A64FFFFCF4BD97ECBBF04AFF1C07EA4B4E47A19 |texte= Assessing the Change in Cover of Non-Indigenous Dwarf-Pine Using Aerial Photographs, a Case Study from the Hrubý Jeseník Mts., the Sudetes }}
This area was generated with Dilib version V0.6.21. |