一个变绿的地球已经扭转了碳酸气候变暖下的碳酸气候变化的趋势
Sibo Zeng1, Zaihua Liu2,3, Yongjun Jiang4
1Chongqing Key Laboratory of Karst Environment & School of Geographical Sciences of Southwest University, Chongqing, China. swsibozeng@swu.edu.cn.
Nature communications
|March 16, 2025
概括
全球植被的绿化增强了矿物气候和碳捕获. 这项研究表明,由于植物的生长,碳酸盐的气候变化增加和大气中的二氧化碳 (CO2) 的气候变化下降,突出了植被恢复的重点.
科学领域:
- 地质化学 地质化学
- 生物地质化学生物地质化学
- 气候科学 气候科学
背景情况:
- 全球植被绿化对矿物质气候变化的影响及其在气候变化的大气二氧化碳 (WSatm-CO2) 沉降池中的作用仍然不太清楚.
- 了解这些过程对于评估地球碳循环和气候调节至关重要.
研究的目的:
- 研究植被变绿和变暖对碳酸气候变化的影响和WSatm-CO2.
- 量化这些影响在区域 (中国西南) 和全球范围内.
主要方法:
- 利用各种生物地球化学模型.
- 纳入了一个实地实验.
- 分析了1982-2018年的数据,使用[HCO3-]作为碳酸气候强度的代理.
主要成果:
- 植被的绿色和全球碳酸气候变化的强度之间存在显著的积极关系.
- 在中国西南地区 (1982-2018),由于变暖,植被绿化增加了5.8%的[HCO3-]和6.1%的WSatm-CO2.
- 在全球范围内,植被绿化增加了2.4%的[HCO3],而仅仅是变暖就减少了1.3%的[HCO3].
- 植被恢复可以提高全球碳酸气候变化的估计43.8%.
结论:
- 植被的绿化显著增强了碳酸盐的气候变化和气候变化对大气中的CO2的沉降.
- 气候变暖对气候变化的影响被植被绿化抵消.
- 未来的植被恢复对于通过矿物气候变化增加碳捕获至关重要.
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