当前位置: X-MOL 学术Sci. Total Environ. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A review on moss nitrogen and isotope signatures evidence for atmospheric nitrogen deposition
Science of the Total Environment ( IF 9.8 ) Pub Date : 2021-10-16 , DOI: 10.1016/j.scitotenv.2021.150765
Chenjun Du 1 , Qingjun Guo 2 , Jun Zhang 1
Affiliation  

Moss nitrogen (N) concentration and isotopic composition (δ15N) values can reveal a better understanding of atmospheric N deposition patterns. Here, we summarize the moss N content and δ15N signatures using data compiled from 104 papers. Based on the dataset, we summarize the models for assessing the level and reduced (NHx): oxidised compounds (NOx) ratio of atmospheric N deposition. Results showed a historical increase in N concentration and 15N depletion of N deposition close to gaseous N sources from intensive animal production and agricultural activities (NHx emission) since the 1800s. However, an increase of moss N with a more positive 15N observed in the last three decades could be due to a substantial fossil fuel combustion contributed NOx emission. Spatially, N deposition in Europe decreased due to successful control actions, but Asia has become a hotspot for NHx emission from agriculture. The current results highlight the importance of moss N and δ15N values for estimating atmospheric N deposition patterns at spatiotemporal trends.



中文翻译:

大气氮沉降的苔藓氮和同位素特征证据综述

苔藓氮 (N) 浓度和同位素组成 (δ 15 N) 值可以揭示对大气 N 沉积模式的更好理解。在这里,我们使用 104 篇论文汇编的数据总结了苔藓 N 含量和 δ 15 N 特征。基于数据集,我们总结了用于评估大气氮沉积的水平和还原 (NH x ):氧化化合物 (NO x ) 比率的模型。结果显示,自 1800 年代以来,N 浓度的历史增加和15 N 消耗的 N 沉积靠近来自集约化动物生产和农业活动(NH x排放)的气态 N 源。然而,苔藓 N 的增加具有更积极的15过去三年中观察到的 N 可能是由于大量化石燃料燃烧导致了 NO x排放。在空间上,由于成功的控制措施,欧洲的 N 沉积减少,但亚洲已成为农业NH x排放的热点。当前的结果强调了苔藓 N 和 δ 15 N 值对于估计时空趋势的大气 N 沉积模式的重要性。

更新日期:2021-10-17
down
wechat
bug