Temporal heterogeneity in climatic responses of four tree species in the Altai Mountains, northwest China

文献类型： 外文期刊

第一作者： Liang, Hanxue

作者： Liang, Hanxue;Che, Leibo;Si, Wenyang;Liu, Na;Wu, Zhitao;Du, Ziqiang;Shi, Jianwei;Liang, Hanxue;Jiang, Shaowei;Lei, Tianjie;Sun, Bin

作者机构：

关键词： Broadleaf species; Coniferous species; Warming and increased precipitation; SPEI; Riparian forests

期刊名称：JOURNAL OF FORESTRY RESEARCH （ 影响因子：3.0； 五年影响因子：2.6 ）

ISSN： 1007-662X

年卷期： 2024 年 35 卷 1 期

页码：

收录情况： SCI

摘要： In the context of ongoing climate change, relationships between tree growth and climate present uncertainties, which limits the predictions of future forest dynamics. Northwest China is a region undergoing notable warming and increased precipitation; how forests in this region will respond to climate change has not been fully understood. We used dendrochronological methods to examine the relationship between climate and the radial growth of four tree species in a riparian forest habitat in Altai region: European aspen (Populus tremula), bitter poplar (Populus laurifolia), Swedish birch (Betula pendula), and Siberian spruce (Picea obovata). The results reveal that European aspen was insensitive to climate changes. In contrast, bitter poplar showed a positive response to elevated temperatures and negative to increased moisture during the growing season. Swedish birch and Siberian spruce were adversely affected by higher temperatures but benefited from increased precipitation. A moving correlation analysis suggested that, against a backdrop of continuous warming, growth patterns of these species will diverge: European aspen will require close monitoring, bitter poplar may likely to show accelerated growth, and the growth of Swedish birch and Siberian spruce may be inhibited, leading to a decline. These findings offer insight into the future dynamics of riparian forests under changing climate.

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