To relieve the impact on global warming of discharge of methane gas, the colliery is regarded as the main emission source of methane, it is very necessary to control his methane that is exploit in the course to discharge and strengthen methane of colliery and utilize. ...
Landfills are regarded as important sources of atmospheric methane (CH4), one of the major greenhouse gases. In this study, we investigated the effects of a gas extraction system on emissions of CH4 and carbon dioxide (CO2) to the atmosphere, from a small (0.37-ha) Swedish landfill site. ...
today there are approximately 500 active volcanoes on Earth, and every year there are 10 to 40 volcanic eruptions.Volcanic eruptions produce hazardous effects for the environment, climate, and the health of the exposed persons, and are associated with the deterioration of social and economic conditio...
Journal of Environmental QualityBorjesson, G. & Svensson, B.H. 1997b. Effects of a gas extraction interruption on emissions of methane and carbon dioxide from a landfill, and on methane oxidation in the cover soil. J. Environ. Qual. 26: 1182-1190....
W Ding,Z Cai,D Wang - 《Atmospheric Environment》 被引量: 355发表: 2004年 An ecological perspective on methane emissions from northern wetlands Since global climate models predict the greatest temperature and precipitation changes at high latitudes, and as the largest areas of wetland (346 × 106...
产气甲烷基质methane细菌bacteria 11•HUNANAGRICULTURALSCIENCES 由于国家对农村沼气发展的大力扶持和政策倾 斜,沼气池在我国农村已经得到了普遍应用。但目前, 农村沼气事业也出现了一些问题,如由于作为发酵原料 的生物质资源的匮乏,国家下大力气建造的沼气池,有 越来越多的被闲置,这与国家的初衷是相左的,而且严 重影...
is the most important greenhouse gas and reactive trace gas in the atmosphere. Recently, it has been reported that terrestrial plants can emit CH under aerobic conditions, which may call for reevaluation of the inventory of CH emissions in China. In this paper, those emissions over China and ...
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Figure 2. Seasonal variations (a), dynamics of Gs and Ngs (b), and the annual average (b) of methane fluxes from the over-mature forest, Korean pine plantation, and five secondary forests at the Maoershan Ecosystem Research Station in Northeast China. The lowercase letters indicate statistical...
The meaning of GREENHOUSE EFFECT is warming of the surface and lower atmosphere of a planet (such as Earth or Venus) that is caused by conversion of solar radiation into heat in a process involving selective transmission of short wave solar radiation by