摘要: Revises an earlier model, GEOCARB I, which seeks to describe the long term geochemical carbon cycle in phanerozoic time. Change in carbon dioxide levels in the Earth's atmosphere over time; Changes in the model; Results of changes in the model....
IV ①Theflatteningof global emissions will notof itselfmake much difference to the climate. ②Though the quantity did not increase, people still threw a lot of carbon dioxide into the atmosphere last year. ③The standardmeasuremento...
the CO2will be subject both to immobilisation processes ([1] on Fig.1) and to potential leakage (migration out of the reservoir and subsequent leakage to the atmosphere-[2] on Fig.1). As this study focuses on
根据第三段“When CO2 naturally increases in the atmosphere, pockets of ancient air preserved in ice show this CO2 rise happens gradually, over thousands of years.(当大气中的二氧化碳自然增加时,保存在冰中的古代空气袋表明,这种二氧化碳的增加是在数千年的时间里逐渐发生的。)”可知,科学家是通过研究古代...
“Turnover time(T) (also called global atmosphericlifetime) is the ratio of the mass M of areservoir(e.g., a gaseous compound in theatmosphere) and the total rate of removal S from thereservoir: T = M / S. For each removal process, separate turnover times can be defined. In soil...
根据第一段中的CO2 levels in the atmosphere grew at a record-high speed in 2013,and the planet's natural ability to take in carbon may be slowing down.That's what the World Meteorological Organization (WMO),a UN body,said in a recent report.(大气中的二氧化碳含量在2013年以创纪录的速度...
Pg C in the upper 10 cm) and its turnover time, OCpetrocannot be assumed to be inert and passive in the shallow subsurface. The input of OCpetrointo soils can also impact soil residence time estimations and lead to an underestimation of soil carbon exchange fluxes with the atmosphere...
atmosphere CO2exchange at seasonal and annual timescales through stomatal responses to atmospheric water stress or the downregulation of plant metabolism due to soil moisture deficits23,24. Extreme water deficits can further induce changes in land-atmosphere CO2exchange over longer time scales, through ...
While CO2 concentrations in the atmosphere have fluctuated throughout time, the rate of increase recorded since the 1850s is greater than any rate of increase that has occurred in the last million years2. As CO2 in the atmosphere rises, dissolution of CO2 into the ocean increases, thus ...
Atmosphere 2021, 12, 1479. [Google Scholar] [CrossRef] Ahmed, Z.; Adebayo, T.S.; Udemba, E.N.; Murshed, M.; Kirikkaleli, D. Effects of economic complexity, economic growth, and renewable energy technology budgets on ecological footprint: The role of democratic accountability. Environ. ...