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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{
  "@context": "https://schema.org/", 
  "@id": 4789, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Univ Newcastle, Discipline Civil Surveying & Environm Engn, Callaghan, NSW, Australia", 
      "name": "Kumari, Nikul"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Newcastle, Discipline Civil Surveying & Environm Engn, Callaghan, NSW, Australia", 
      "name": "Saco, Patricia M."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Newcastle, Discipline Civil Surveying & Environm Engn, Callaghan, NSW, Australia", 
      "name": "Rodriguez, Jose F."
    }, 
    {
      "@type": "Person", 
      "affiliation": "US Geol Survey, Geosci & Environm Change Sci Ctr, Denver, CO USA", 
      "name": "Johnstone, Samuel A."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Newcastle, Discipline Civil Surveying & Environm Engn, Callaghan, NSW, Australia", 
      "name": "Srivastava, Ankur"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Hong Kong Baptist Univ, Dept Geog, Hong Kong, Peoples R China", 
      "name": "Chun, Kwok P."
    }, 
    {
      "@type": "Person", 
      "name": "Yetemen, Omer"
    }
  ], 
  "datePublished": "2020-01-01", 
  "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.", 
  "headline": "The Grass Is Not Always Greener on the Other Side: Seasonal Reversal of Vegetation Greenness in Aspect-Driven Semiarid Ecosystems", 
  "identifier": 4789, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "The Grass Is Not Always Greener on the Other Side: Seasonal Reversal of Vegetation Greenness in Aspect-Driven Semiarid Ecosystems", 
  "url": "https://aperta.ulakbim.gov.tr/record/4789"
}