Features of Radial Growth Rate of Trees in Agro-Pastoral Transition Zone, Northern China

The Vaganov–Shashkin process-based model was used to explore the variation characteristic of radial growth rate Pinus tabulaeformis in agro-pastoral transition zone northern China. tree-ring width chronologies four sampling sites were significantly positively correlated with simulated series (p < 0.01), and onset end dates tree indicated that April October main growing season. Temperature affects stems at start season, while soil moisture availability Despite differences amplitude, integral showed a bimodal pattern, which some extent responded hydrothermal configuration East Asian summer monsoon climate. Compared peak changes fringe area Northwest China, highest this study appeared around August late reflecting adaptability trees local climatic environment. average values due moisture, inferred from extreme wide-ring narrow-ring years, different rates temperature not significant > 0.05). analysis results indicate is key limiting factor for tabulaeformis. Our provides valuable knowledge about processes species related hydroclimatic variables China offers new perspective on mitigating adverse effects warmer climate forest semi-arid region future.