叶面的化学景观及其与大气的相互作用
Rachele Ossola1, Delphine Farmer1
1Department of Chemistry, Colorado State University, 80523 Fort Collins, Colorado (United States).
Chemical reviews
|April 23, 2024
概括
植物叶子是化学活跃的表面,而不是惰性发射器. 本综述探讨了叶子表面的"化学景观",揭示了它在大气多相反应中的作用,并确定了关键的研究差距.
科学领域:
- 环境化学环境化学
- 植物科学 植物科学
- 大气科学 大气科学
背景情况:
- 从历史上看,叶子被认为是释放挥发性碳化合物的惰性表面.
- 新出现的证据表明,叶子是由于表面化学物质导致的多相反应的活性基质.
研究的目的:
- 审查叶面"化学景观"的化学和反应性.
- 为了将叶面化学物质分类为内源或外源.
- 识别了解叶子表面化学及其对大气影响的知识差距.
主要方法:
- 关于叶子表面化学现有数据的文献综述.
- 基于来源 (内源/外源) 的叶子表面化合物的分类.
- 对叶子的总有机负荷和多相反应的潜力的估计.
主要成果:
- 叶面具有动态的"化学景观",预测有机负荷超过2μg cm−2.2.
- 据估计,叶子的总有机负荷超过3 Tg,这对于多相反应具有重要意义.
- 确定了关键的知识差距,包括水的作用,植物圈生物膜和氧化剂反应性.
结论:
- 叶子表面是一个化学反应的接口,对大气化学至关重要.
- 需要对水,生物膜和大气氧化剂相互作用的作用进行进一步的研究.
- 跨学科的合作对于推动研究叶面化学景观至关重要.
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