气候变化正在加速澳大利亚的树木死亡,威胁到森林碳储存。 Climate change is speeding tree deaths in Australia, threatening forests' carbon storage.

由于气候变化,澳大利亚森林中的树木死亡正在加速,所有主要森林类型的死亡率都在上升,特别是在热带热带草原等干燥地区,热带草原等炎热地区,热带草原每年的树死亡率在1996年至2017年期间几乎翻了一番。 Tree deaths in Australia’s forests are accelerating due to climate change, with mortality rising across all major forest types, especially in hotter, drier regions like tropical savannas, where annual tree deaths nearly doubled from 1996 to 2017. 一项分析2 700块林地的研究发现,背景树死亡率几十年来持续上升,超过树木生长速度,导致森林生物量减少。 A study analyzing 2,700 forest plots found background tree mortality increased consistently over decades, outpacing tree growth and leading to declining forest biomass. 研究人员将这一趋势与气温上升和干燥条件联系起来,警告说森林储存碳的能力(目前吸收了大约三分之一的人类造成的排放)可能正在下降,这种模式可能在全球范围内出现。 Researchers link the trend to rising temperatures and drying conditions, warning that forests’ ability to store carbon—currently absorbing about one-third of human-caused emissions—may be diminishing, a pattern likely occurring globally.