Forests, Journal Year: 2025, Volume and Issue: 16(3), P. 528 - 528

Published: March 17, 2025

Accurately understanding the changes in global light-response parameters (i.e., maximum light use efficiency, LUEmax) is essential for improving simulation of terrestrial ecosystem’s photosynthetic carbon cycling under climate change, but a comprehensive and assessments are still lacking. In this study, LUEmax was quantified using data from 23 flux stations, change patterns across various vegetation types zones were analyzed. The extent significant increases or decreases during different phenological stages growth evaluated trend analysis methods. contribution rates environmental factors determined Geodetector method. results show that values same type varied types. More variable climates (e.g., polar alpine climates) associated with more fluctuations LUEmax. Conversely, stable temperate tend to consistent values. Within type, evergreen needleleaf forests (ENF) deciduous broadleaf (DBF) generally exhibited higher continental climates, whereas wetlands (WET) relatively high climates. mechanisms driving variations disparities diverse conditions. For ENF DBF, predominantly influenced by temperature radiation. contrast, GRA, WET, croplands closely indices factors. findings study play an important role advancing theoretical development gross primary productivity (GPP) models enhancing accuracy sequestration simulations ecosystems.

Language: Английский