The interaction of methanol with a clean <I 10) ruthenium surface has been studied using temperature programmed desorption methods. Methanol dissociates upon adsorption at 300 K and yields Ha(g) and chemisorbed CO as the domiwt products. Randomization of evolved hydrogen was shown to occur during methanol adsorption and also upon subsequent thermal desorption using isotopically labeled methanol...

This project aimed to develop a dataset containing animal policies, production efficiencies, and greenhouse gas (GHG) emissions of large number sheep beef farms, examine the relationships between farm management physical constraints, GHG emissions. We used farm-scale model Farmax estimate feed inventories, livestock policies 170 New Zealand farms. Emissions were calculated from outputs using Ag...

The increasing worldwide concern regarding environmental issues, in particular after the consistent reports published by the Intergovernmental Panel on Climate Change – IPCC, has significantly stimulated the production of biofuels. Among these biofuels, the ethanol produced from sugar cane is considered to be of particular importance. Currently, Brazil is the world's largest producer of sugar c...

To explore the agronomic potential of an Australian coal fly ash, we conducted two glasshouse experiments in which we measured chlorophyll fluorescence, CO2 assimilation (A), transpiration, stomatal conductance, biomass accumulation, seed yield, and elemental uptake for canola (Brassica napus) grown on soil amended with an alkaline fly ash. In Experiment 1, application of up to 25 Mg/ha of fly ...

Soil quality decline represents a significant constraint on the productivity and sustainability of agriculture in the tropics. In this study, the influence of biochar, compost and mixtures of the two on soil fertility, maize yield and greenhouse gas (GHG) emissions was investigated in a tropical Ferralsol. The treatments were: 1) control with business as usual fertilizer (F); 2) 10 t ha(-1) bio...

The DAYCENT ecosystem model (a daily version of CENTURY) and an emission factor (EF) methodology used by the Intergovernmental Panel on Climate Change were used to estimate direct and indirect N2O emission for major cropping systems in the USA. The EF methodology is currently used for the USA greenhouse gas inventory but process based models, such as DAYCENT, may yield more reliable results bec...