Impact of local climate and large-scale climate drivers on the growth of Gmelina arborea Roxb. in a South Asian moist tropical forest

IF 2.1 3区 农林科学 Q2 FORESTRY
Trees Pub Date : 2025-03-26 DOI:10.1007/s00468-025-02618-w
Chowdhury Rafatul Kabir, Mahmuda Islam, Md Bayzid Hassan, Mizanur Rahman
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引用次数: 0

Key message

Tree growth of Gmelina arborea Roxb is mainly influenced by pre-monsoon temperatures and ENSO in a moist tropical forest of Bangladesh.

Abstract

The present study was conducted to investigate the impact of climate change on tree radial growth in a moist tropical forest of Bangladesh. A standard ring-width index chronology (RWI) of Gmelina arborea Roxb. was developed spanning the 92-year period from 1929 to 2020 using the standard dendrochronological technique. The association between climate variables and RWI was determined by employing simple Pearson's correlation. Pre- and post-monsoon maximum temperature (Tmax) had a strong negative impact on tree growth. Temperatures during the monsoon period however favored tree growth. Tree growth was also influenced by previous years’ temperature providing evidence of a lag effect on radial growth. On a spatial scale, tree growth was influenced by regional climate and sea surface temperatures of Ninö 3.4 region, indicating teleconnection between tree growth and large-scale climate phenomenon. If the negative relationship between temperatures and tree growth continues in future, it will have important implications for tropical forest tree biomass, since temperature is predicted to increase in the tropics. Future global warming is thus very likely to affect the carbon sequestration potential of tropical forests in the face of climate change.

局地气候和大尺度气候驱动因子对小檗生长的影响。在南亚潮湿的热带森林中
在孟加拉国潮湿的热带森林中,Gmelina arborea Roxb的树木生长主要受季风前温度和ENSO的影响。摘要本文研究了气候变化对孟加拉国热带湿润森林树木径向生长的影响。杨梅的标准环宽指数年表(RWI)。从1929年到2020年的92年间,使用标准的树木年代学技术进行了开发。气候变量与RWI之间的关系采用简单的Pearson相关来确定。季风前和季风后最高温度对树木生长有较强的负面影响。然而,季风时期的气温有利于树木的生长。树木的生长也受到往年温度的影响,这为径向生长提供了滞后效应的证据。在空间尺度上,树木生长受区域气候和Ninö 3.4区域海温的影响,表明树木生长与大尺度气候现象存在遥相关关系。如果温度和树木生长之间的负相关关系在未来继续下去,它将对热带森林树木生物量产生重要影响,因为预计热带地区的温度将升高。因此,面对气候变化,未来的全球变暖很可能影响热带森林的固碳潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Trees
Trees 农林科学-林学
CiteScore
4.50
自引率
4.30%
发文量
113
审稿时长
3.8 months
期刊介绍: Trees - Structure and Function publishes original articles on the physiology, biochemistry, functional anatomy, structure and ecology of trees and other woody plants. Also presented are articles concerned with pathology and technological problems, when they contribute to the basic understanding of structure and function of trees. In addition to original articles and short communications, the journal publishes reviews on selected topics concerning the structure and function of trees.
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