1 Ocak 2020 Dergi makalesi Açık Erişim

Kumari, Nikul; Saco, Patricia M.; Rodriguez, Jose F.; Johnstone, Samuel A.; Srivastava, Ankur; Chun, Kwok P.; Yetemen, Omer

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/4789</identifier>
  <creators>
    <creator>
      <creatorName>Kumari, Nikul</creatorName>
      <givenName>Nikul</givenName>
      <familyName>Kumari</familyName>
      <affiliation>Univ Newcastle, Discipline Civil Surveying &amp; Environm Engn, Callaghan, NSW, Australia</affiliation>
    </creator>
    <creator>
      <creatorName>Saco, Patricia M.</creatorName>
      <givenName>Patricia M.</givenName>
      <familyName>Saco</familyName>
      <affiliation>Univ Newcastle, Discipline Civil Surveying &amp; Environm Engn, Callaghan, NSW, Australia</affiliation>
    </creator>
    <creator>
      <creatorName>Rodriguez, Jose F.</creatorName>
      <givenName>Jose F.</givenName>
      <familyName>Rodriguez</familyName>
      <affiliation>Univ Newcastle, Discipline Civil Surveying &amp; Environm Engn, Callaghan, NSW, Australia</affiliation>
    </creator>
    <creator>
      <creatorName>Johnstone, Samuel A.</creatorName>
      <givenName>Samuel A.</givenName>
      <familyName>Johnstone</familyName>
      <affiliation>US Geol Survey, Geosci &amp; Environm Change Sci Ctr, Denver, CO USA</affiliation>
    </creator>
    <creator>
      <creatorName>Srivastava, Ankur</creatorName>
      <givenName>Ankur</givenName>
      <familyName>Srivastava</familyName>
      <affiliation>Univ Newcastle, Discipline Civil Surveying &amp; Environm Engn, Callaghan, NSW, Australia</affiliation>
    </creator>
    <creator>
      <creatorName>Chun, Kwok P.</creatorName>
      <givenName>Kwok P.</givenName>
      <familyName>Chun</familyName>
      <affiliation>Hong Kong Baptist Univ, Dept Geog, Hong Kong, Peoples R China</affiliation>
    </creator>
    <creator>
      <creatorName>Yetemen, Omer</creatorName>
      <givenName>Omer</givenName>
      <familyName>Yetemen</familyName>
    </creator>
  </creators>
  <titles>
    <title>The Grass Is Not Always Greener On The Other Side: Seasonal Reversal Of Vegetation Greenness In Aspect-Driven Semiarid Ecosystems</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2020</publicationYear>
  <dates>
    <date dateType="Issued">2020-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/4789</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1029/2020GL088918</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">Our current understanding of semiarid ecosystems is that they tend to display higher vegetation greenness on polar-facing slopes (PFS) than on equatorial-facing slopes (EFS). However, recent studies have argued that higher vegetation greenness can occur on EFS during part of the year. To assess whether this seasonal reversal of aspect-driven vegetation is a common occurrence, we conducted a global-scale analysis of vegetation greenness on a monthly time scale over an 18-year period (2000-2017). We examined the influence of climate seasonality on the normalized difference vegetation index (NDVI) values of PFS and EFS at 60 different catchments with aspect-controlled vegetation located across all continents except Antarctica. Our results show that an overwhelming majority of sites (70%) display seasonal reversal, associated with transitions from water-limited to energy-limited conditions during wet winters. These findings highlight the need to consider seasonal variations of aspect-driven vegetation patterns in ecohydrology, geomorphology, and Earth system models.</description>
  </descriptions>
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