Quantitative measurement of direct nitrous oxide emissions from microalgae cultivation.

Arnold Schwarzenegger Governor OBSERVATION OF METHANE AND OTHER NON-CARBON DIOXIDE GREENHOUSE GAS EMISSIONS FROM CALIFORNIA

..................................................................................................................................................... xi Executive Summary ................................................................................................................................... 1 1.0 Introduction .............................................................................

Nitrous Oxide Emissions from Claypan Soils Due to Nitrogen Fertilizer Source and Tillage/fertilizer Placement Practices

Indirect emissions from biofuels: how important?

A global biofuels program will lead to intense pressures on land supply and can increase greenhouse gas emissions from land-use changes. Using linked economic and terrestrial biogeochemistry models, we examined direct and indirect effects of possible land-use changes from an expanded global cellulosic bioenergy program on greenhouse gas emissions over the 21st century. Our model predicts that i...

Impacts of nitrogen application rates on the activity and diversity of denitrifying bacteria in the Broadbalk Wheat Experiment.

Bacterial denitrification results in the loss of fertilizer nitrogen and greenhouse gas emissions as nitrous oxides, but ecological factors in soil influencing denitrifier communities are not well understood, impeding the potential for mitigation by land management. Communities vary in the relative abundance of the alternative dissimilatory nitrite reductase genes nirK and nirS, and the nitrous...

Exploring the nitrous acid (HONO) formation mechanism in winter Beijing: direct emissions and heterogeneous production in urban and suburban areas.

Continuous measurements of nitrous acid (HONO) were performed from December 12 to December 22, 2015 in both urban and suburban areas of Beijing to study the formation mechanism of HONO. The measurement campaign in both sites included a clean-haze-clean transformation process. HONO concentrations showed similar variations in the two sites, while they were always higher in the urban area. Moreove...