1. Главная
  2. Ресурсы
  3. Библиотечный поиск
Codominant watercontrol on globalinterannualvariability andtrends in landsurface phenology andgreenness Matthias ForkelMirco MigliavaccaKirsten Thonicke2015 год

Codominant water control on global interannual variability and trends in land surface phenology and greenness
статья из журнала

Страница публикацииПубликация в OpenAlex
Аннотация: Identifying the relative importance of climatic and other environmental controls on the interannual variability and trends in global land surface phenology and greenness is challenging. Firstly, quantifications of land surface phenology and greenness dynamics are impaired by differences between satellite data sets and phenology detection methods. Secondly, dynamic global vegetation models (DGVMs) that can be used to diagnose controls still reveal structural limitations and contrasting sensitivities to environmental drivers. Thus, we assessed the performance of a new developed phenology module within the LPJmL (Lund-Potsdam-Jena managed Lands) DGVM with a comprehensive ensemble of three satellite data sets of vegetation greenness and ten phenology detection methods, thereby thoroughly accounting for observational uncertainties. The improved and tested model allows us quantifying the relative importance of environmental controls on interannual variability and trends of land surface phenology and greenness at regional and global scales. We found that start of growing season interannual variability and trends are in addition to cold temperature mainly controlled by incoming radiation and water availability in temperate and boreal forests. Warming-induced prolongations of the growing season in high latitudes are dampened by a limited availability of light. For peak greenness, interannual variability and trends are dominantly controlled by water availability and land-use and land-cover change (LULCC) in all regions. Stronger greening trends in boreal forests of Siberia than in North America are associated with a stronger increase in water availability from melting permafrost soils. Our findings emphasize that in addition to cold temperatures, water availability is a codominant control for start of growing season and peak greenness trends at the global scale.
Год издания: 2015
Авторы: Matthias Forkel, Mirco Migliavacca, Kirsten Thonicke, Markus Reichstein, Sibyll Schaphoff, Ulrich Weber, Nuno Carvalhais
Издательство: Wiley
Источник: Global Change Biology
Ключевые слова: Remote Sensing in Agriculture, Land Use and Ecosystem Services, Species Distribution and Climate Change
Другие ссылки: Global Change Biology (HTML)
PubMed (HTML)