The global oxygen budget and its future projection

作     者：Jianping Huang Jiping Huang Xiaoyue Liu Changyu Li Lei Ding Haipeng Yu 

作者机构：Key Laboratory for Semi-Arid Climate Change of the Ministry of Education Lanzhou University Lanzhou 730000 China Enlightening Bioscience Research Center Mississauga L4X 2X7 Canada 

基　　金：supported by the National Natural Science Foundation of China (41521004) the China University Research Talents Recruitment Program (111 project, B13045) 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2018年第63卷第18期

页      码：1180-1186页

摘      要：Atmospheric oxygen （02） is the most crucial element on earth for the aerobic organisms that depend on it to release energy from carbon-based macromolecules. This is the first study to systematically analyze the global O2 budget and its changes over the past 100 years. It is found that anthropogenic fossil fuel combustion is the largest contributor to the current O2 deficit, which consumed 2.0 Gt/a in 1900 and has increased to 38.2 Gt/a by 2015. Under the Representative Concentration Pathways （RCPs） RCP8,5 scenario, approximately 100Gt （gigatonnes） of O2 would be removed from the atmosphere per year until 2100, and the O2 concentration will decrease from its current level of 20.946% to 20.825%. Human activities have caused irreversible decline of atmospheric O2. It is time to take actions to promote O2 production and reduce O2 consumption.

主 题 词：Atmospheric oxygen Oxygen decline Oxygen budget Oxygen concentration 

学科分类：07[理学] 070601[070601] 0706[理学-大气科学类] 

核心收录：

D　O　I：10.1016/j.scib.2018.07.023

馆 藏 号：203323814...