Frontiers in Forests and Global Change, Journal Year: 2024, Volume and Issue: 7

Published: Dec. 9, 2024

In recent decades, continued growth decline has been observed in various beech forest regions of Central and Western Europe, especially the warmer lowlands, which is not necessarily linked to increased mortality. While earlier dendrochronological studies have shown that a deteriorating climatic water balance course climate warming can drive negative trends, less known about effects extremes on tree growth, notably heat rising atmospheric vapor pressure deficits (VPD). Through climate-growth analysis, we analyzed influence summer duration (frequency hot days with T max > 30°C) elevated VPD basal area increment (BAI) dominant trees 30 stands across precipitation gradient northern German lowlands. Summer (especially June) are reducing BAI similar manner as does deteriorated balance. growing season length (GSL), derived from thermal thresholds activity, substantially since 1980, declined majority stands, demonstrating decoupling productivity GSL. We conclude most likely important drivers this region, while lost its indicative value productivity.

Language: Английский