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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  <dc:creator>Kumari, Nikul</dc:creator>
  <dc:creator>Saco, Patricia M.</dc:creator>
  <dc:creator>Rodriguez, Jose F.</dc:creator>
  <dc:creator>Johnstone, Samuel A.</dc:creator>
  <dc:creator>Srivastava, Ankur</dc:creator>
  <dc:creator>Chun, Kwok P.</dc:creator>
  <dc:creator>Yetemen, Omer</dc:creator>
  <dc:date>2020-01-01</dc:date>
  <dc:description>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.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/4789</dc:identifier>
  <dc:identifier>oai:zenodo.org:4789</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>GEOPHYSICAL RESEARCH LETTERS 47(15)</dc:source>
  <dc:title>The Grass Is Not Always Greener on the Other Side: Seasonal Reversal of Vegetation Greenness in Aspect-Driven Semiarid Ecosystems</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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