Buscar
Mostrando ítems 1-10 de 366
Greenhouse gas emissions and carbon footprint of cucumber, tomato and lettuce production using two cropping systems
(2021-02-01)
Vegetable intercropping is an alternative to the conventional system and characterised by a greater efficiency of land use and inputs. For this reason, it is a more sustainable and low greenhouse gas emission (GHG) cultivation ...
Indirect Emissions from Biofuels: How Important?
(AMER ASSOC ADVANCEMENT SCIENCE, 2009)
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 ...
Isoprene and monoterpene emissions of Amazônian tree species during the wet season: Direct and indirect investigations on controlling environmental functions
(2002)
As part of the project LBA-EUSTACH (European Studies on Trace gases and Atmosphere Chemistry as a contribution to the Large-Scale Biosphere-Atmosphere experiment in Amazonia), we examined the diel pattern of isoprenoid ...
N deposition and elevated CO2 on methane emissions: Differential responses of indirect effects compared to direct effects through litter chemistry feedbacks
(American Geophysical Union, 2010-04)
Increases in atmospheric CO2 concentration and N deposition are expected to affect methane (CH4) production in soils and emission to the atmosphere, directly through increased plant litter production and indirectly through ...
Greenhouse gases emissions from wastewater treatment plants: minimization, treatment, and prevention
(2016)
The operation of wastewater treatment plants results in direct emissions, from the biological processes, of greenhouse gases (GHG) such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N-2 O), as well as indirect ...
Life cycle greenhouse gas emissions of sugar cane renewable jet fuel
(Amer Chemical Soc, 2014-12-16)
This study evaluated the life cycle GHG emissions of a renewable jet fuel produced from sugar cane in Brazil under a consequential approach. The analysis included the direct and indirect emissions associated with sugar ...
Emissions from the premixed combustion of gasified polyethylene
(AMER CHEMICAL SOC, 2008)
An investigation was conducted on pollutants emitted from steady-state, steady-flow gasification and combustion of polyethylene (PE) in a two-stage furnace. The polymer, in pulverized form, was first pyrolyzed at 1000 ...