全球气候模型需要全面纳入氮循环

Fountain: Geophysical Research Journal: Biogeosciences This is an authorized translation of an Eos article. 本文是Eos文章的授权翻译. 氮是全球环境的重要组成部分,影响着农业、气候、人类健康和生态系统。氮循环的作用已经得到了更广泛的认识,然而用于预测全球环境变化的地球系统模型(ESM) 仍然没有将其完全纳入考量. Kou-Giesbrecht主张在ESM中交互式地纳入完整的氮循环,以解释氮在陆地、海洋和大气之间复杂且相互关联的流动方式。氮直到最近才被纳入一些ESM的陆地模型中,并且仅仅作为初级生产力的限制因素. 氮的作用远不止于植物生长,它还是一种强效温室气体,也是臭氧形成和气溶胶成分的重要驱动因素。野火会释放氮氧化物和氨,导致颗粒物浓度升高;海洋微生物既吸收氮也释放氮。氮向海洋的输出会影响海洋初级生产力,也影响海洋氮的排放,而海水中过量的氮会导致富营养化。 尽管氮循环在全球范围内都非常重要,但ESM中的许多氮循环组成部分即使被包括在内,也不是完全交互的,有些甚至根本没有被纳入模型;相反,动态模拟氮循环,将大大缩小我们对地球气候和环境近期演变的认知差距. “”科伦坡可持续氮管理宣言》的目标,即到2030年将氮废弃物减少一半,这样每年可以(Geophysical Research Journal: Biogeosciences, https://doi.org/10.1029/2025JG0092092025) —科学撰稿人Nathaniel Scharping (@nathanielscharp) This translation was done by wiley. 本文翻译由wiley提供。 Read this article on WeChat. 在微信上阅读本文. Text © 2025. AGU. CC BY-NC-ND 3.0Unless otherwise noted, images are subject to copyright….

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