GENEVA, Aug. 30 (Xinhua) -- Swiss researchers have shown that during drier years the concentration of carbon dioxide in the atmosphere rises faster because stressed ecosystems absorb less carbon, which must be integrated in the next generation of climate models, the Swiss Federal Institute of Tech...
Moeller, F., "On the Influence of Changes in the CO2 Con- centration in Air on the Radiation Balance of the Earth's Surface and on the Climate," Journal of Geophysical Research, Vol. 68, 1963, p. 3877.On the influence of changes in the CO2 concentration in air on the radiation ...
the CO2concentration in air is as low as 300~400 ppm, and flue gas after fossil fuel combustion typically consists of about 72–77 vol% N2, 12–14 vol% CO2, 8–10 vol% H2O, 3–5 vol% O2, and other minor components21,22,23,24. In air and flue gas, the CO2adsorption and activa...
Kathmandu). Pre-earthquake water temperature and DIC concentration of SBP0 are compiled from our database and the literature30. Timing of the Gorkha earthquake, the Chilime hot spring cessation and the Sanjen CO2outburst are displayed as vertical grey lines. Possible pre-seismic water-...
Fig. 3 Mitochondrial respiration rate (Rn) in response to CO2 concentration (Ca) at 21% and 2%的O2 concentration in the flag leaves of wheat (mean ± SD). 下暗呼吸速率(Rd).由表1可知, 不同光强下小麦旗 叶的光下暗呼吸速率(Rd)分别为1.934,2.064,2.164 www.plant-ecology.com 和2.539 μ...
After separation of CO2 from the other air gases in the laboratory, the CO2 concentrations were calculated from the intensity of the 12C16O ion beam in the mass spectrometer, after calibration with artificial air samples whose CO2 concentration was very carefully determined by the Monte Cimone ...
Traditional modes of carbon capture such as precombustion and postcombustion CO2 capture from large point sources can help slow the rate of increase of the atmospheric CO2 concentration, but only the direct removal of CO2 from the air, or "direct air capture" (DAC), can actually reduce the ...
The teams simulated high CO2 levels in open-air fields using a system called Free Air Concentration Enrichment (FACE), which pumps out, monitors and adjusts ground-level atmospheric CO2 to simulate future conditions. In this study, all other growing conditions (sunlight, soil, water, temperature...
Aims Although temperate broadleaved deciduous forest accounts for two-thirds of the forest area in northeastern China, its spatio-temporal variations of CO2 concentration (CO2]) have not been quantified. Our objectives were to quantify diurnal and seasonal variations and vertical gradients of CO2] and...
But the direct air capture (DAC) process, like the one in Iceland, aims to capture past emissions already in the atmosphere. 但是冰岛的这种直接空气捕集方法旨在捕获过去排放到大气中的二氧化碳。 However, the DAC method...