Diverging trends in plant phenology and productivity across European mountains in a warming world

作者：Davide Andreatta, Nina Buchmann, Tommaso Jucker, Luca Belelli Marchesini, Michele Dalponte, Michele Scotton, Loris Vescovo, Damiano Gianelle · 发表于：Agricultural and Forest Meteorology · 年份：2025 · DOI：10.1016/j.agrformet.2025.110874 · 被引用次数：4 · 研究领域：Remote Sensing in Agriculture、Plant Water Relations and Carbon Dynamics、Horticultural and Viticultural Research

• Remote sensing data showed diverging phenological patterns in fragmented mountain ranges. • Mountain plant phenology trends varied by elevation and vegetation type. • Grassland spring advanced more at high elevations, forests at low elevations. • Climate variables predicted short-term phenology better than long-term trends. • Longer growing seasons will not necessarily translate into increasing productivity. Global warming is affecting phenology and productivity of terrestrial ecosystems, with large implications for carbon cycling. However, how plant phenological trends are shifting in climatically heterogenous mountains, and how these trends affect ecosystem productivity remains unclear. Using moderate resolution satellite data (500 m), we analyzed differences in phenological trends and productivity between vegetation types and along elevation in Europe’s major mountain ranges between 2001 and 2023. End-of-season shifts outpaced start-of-season changes in broadleaved forests (+0.15 vs. -0.05 d y⁻¹), while patterns in natural grasslands were opposite (+0.03 vs. -0.23 d y⁻¹). The magnitude of these shifts varied significantly with elevation: grassland spring phenology consistently advanced more at high than at low elevations, while broadleaved forest spring phenology exhibited mountain range-specific elevation responses—advancing more at low than at high elevations in the Alps and in the Carpathians, but not in the Pyrenees and in the Scandinavian Mountains. Autumn phenology...