Research progress on physiological processes-based tree-ring width models of Vaganov-Shashkin (VS)and VS-Lite

Area of Science:

• Dendrochronology
• Forest Ecology
• Climate Science

Background:

• The Vaganov-Shashkin (VS) and VS-Lite models are leading physiological process-based models for tree-ring width analysis.
• These models elucidate the relationship between tree-ring width and climate factors, crucial for ecological and climate studies.

Purpose of the Study:

• To review the fundamental principles, parameter settings, and historical development of the VS and VS-Lite models.
• To summarize their applications in dendroclimatology, xylem phenology, and forest ecology.
• To identify current challenges and propose future research directions for these tree-ring models.

Main Methods:

• Systematic literature review of papers published between 2005 and 2023 focusing on VS and VS-Lite models.
• Analysis of model principles, parameterization, historical evolution, and application domains.
• Synthesis of current limitations and future research avenues.

Main Results:

• The VS model is widely used for climate reconstruction and cambial activity simulation.
• The VS-Lite model is primarily applied for forecasting forest growth trends.
• Key research areas include dendroclimatology, xylem phenology, and forest ecology.

Conclusions:

• Optimizing parameter adjustment methods is crucial for enhancing simulation confidence.
• Incorporating multiple environmental factors is essential for a comprehensive understanding of tree physiology.
• Comparative studies with other vegetation models are needed to validate and advance VS and VS-Lite models.