Spatial distribution of the most predominant climatic controls on leaf onset and offset dates of alpine grasslands on the QTP, identified based on the AGSI model using (a–f) ground-based and (g–l) satellite-based parameter values, respectively.

Qingling Sun developed a semi-mechanistic #PhenologicalModel, the Alpine #GrowingSeasonIndex (AGSI), to predict foliar phenology in #AlpineGrasslands on the Qinghai–Tibetan Plateau.

#ClimaticFactor | #LimitingEffect

@mapjournals.bsky.social

doi.org/10.1093/jpe/...

Sketch map showing the identification of leaf onset date (indicated by A) and leaf offset date (indicated by B) based on the AGSI curve and an AGSI threshold (AGSIthr).

💡 An ‼️improved‼️ #GrowingSeasonIndex of #AlpineGrasslands on the #Qinghai–TibetanPlateau
Characteristics: including 1️⃣ #MaximumTemperature, 2️⃣ #Precipitation, 3️⃣ #Photoperiod
Function: predicting #FoliarPhenology
doi.org/10.1093/jpe/...