人类活动导致16世纪大气二氧化碳下降
据中新网报道，一项发表于《自然-通讯》杂志的最新研究显示，人类活动的变化可能导致16世纪大气中二氧化碳含量下降。
研究人员分析了南极冰芯数据，发现公元1450年至1700年间，即新旧大陆交流时期，美洲发生了大规模土地利用变化。这一变化导致森林砍伐和农业用地扩张，从而减少了二氧化碳的吸收和释放。
研究表明，美洲森林砍伐和农业用地扩张释放的二氧化碳量超过了欧洲工业革命前森林砍伐释放的二氧化碳量。这一发现表明，人类活动对全球碳循环的影响可能比此前估计的更为显著。
研究人员表示，这项研究结果有助于加深我们对人类活动对气候变化影响的理解。它表明，即使在工业革命之前，人类活动也对大气二氧化碳含量产生了重大影响。
研究还强调了保护森林和实施可持续土地利用实践的重要性。通过减少二氧化碳排放和增加碳汇，我们可以减缓气候变化的影响，保护地球的未来。
英语如下：
**Headline:** Human Activities Drove 16th Century Decline in Atmospheric CarbonDioxide
**Keywords:** Human activities, land use, carbon dioxide
**Article:**
Human activities may have caused a decline in atmospheric carbon dioxide during the16th century, according to a new study published in Nature Communications.
Researchers analyzed data from Antarctic ice cores and found that a major land-use change occurred in the Americas between 1450 and 1700 AD, during the period of European contact. This change involved deforestation and agricultural expansion, which reduced the uptake and release of carbon dioxide.
The study suggests that the carbon dioxide released from deforestation and agricultural expansion in the Americas exceeded that released from deforestation in Europe prior to the Industrial Revolution. This finding indicates that human activities may have had a more significant impact on the global carbon cycle than previously estimated.
“These results contribute to our understanding of the impact of human activities on climate change,” said the researchers. “They show that even before the Industrial Revolution, human activities had a major influence on atmospheric carbon dioxide levels.”
The study also highlights the importance of protecting forests and implementing sustainable land-use practices. By reducing carbondioxide emissions and increasing carbon sinks, we can mitigate the effects of climate change and protect the future of the planet.
【来源】http://www.chinanews.com/gj/2024/03-06/10175075.shtml
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