Track topics on Twitter Track topics that are important to you
Winter oilseed rape (WOSR) is the main crop for biodiesel in the EU, where legislation demands at least 50% savings in greenhouse gas (GHG) emissions as compared to fossil diesel. Thus industrial sectors search for optimized management systems to lower GHG emissions from oilseed rape cultivation. Recently, pyrolysis of biomass with subsequent soil amendment of biochar has shown potentials for GHG mitigation in terms of carbon (C) sequestration, avoidance of fossil based electricity, and mitigation of soil nitrous oxide (NO) emissions. Here we analyzed three WOSR scenarios in terms of their global warming impact using a life cycle assessment approach. The first was a reference scenario with average Danish WOSR cultivation where straw residues were incorporated to the soil. The others were biochar scenarios in which the oilseed rape straw was pyrolysed to biochar at two process temperatures (400 and 800 °C) and returned to the field. The concept of avoided atmospheric CO load was applied for calculation of C sequestration factors for biochar, which resulted in larger mitigation effects than derived from calculations of just the remaining C in soil. In total, GHG emissions were reduced by 73 to 83% in the two biochar scenarios as compared to the reference scenario, mainly due to increased C sequestration. The climate benefits were higher for pyrolysis of oilseed rape straw at 800 than at 400 °C. The results demonstrated that biochar has a potential to improve the life cycle GHG emissions of oilseed rape biodiesel, and highlighted the importance of consolidated key assumptions, such as biochar stability in soil and the CO load of marginal grid electricity.
This article was published in the following journal.
Name: The Science of the total environment
Greenhouse gas emissions from agricultural soils contribute substantially to global atmospheric composition. Nitrous oxide (NO) is one important greenhouse gas induces global warming. Nitrification in...
Greenhouse gas and ammonia emissions during composting with different biochar types and particle sizes were investigated. Compared with powder-biochar, granular-biochar improved pore connectivity and ...
The efficiency of biochar to mitigate greenhouse gas (GHG) emission from rice paddy soils is not consistent. Furthermore, which factor dominates this mitigation efficiency is not clear. In the present...
Nitrous oxide (N2O) from agricultural ditches is a non-negligible source of anthropogenic greenhouse gas (GHG) emissions, but few studies have addressed this topic in depth. On the other hand, althoug...
Peatlands are globally important areas for carbon preservation; although covering only 3% of global land area, they store 30% of total soil carbon. Lowland peat soils can also be very productive for a...
The purpose of this study is to evaluate the feasibility of implementing a Compassion Cultivation Training (CCT) program for oncology nurses at Sylvester Comprehensive Cancer Center. The g...
This study will begin a novel line of research on CCT in Denmark as a preventive intervention for caregivers of people suffering from a mental illness. The primary aim of the study is to i...
Hearing loss is one of the most common congenital anomalies . It has been shown to be greater than that of most other diseases and syndromes (eg, phenylketonuria, sickle cell disease) scre...
This study measures sounds produced by the sensory receptors of the inner ear called hair cells. These sounds are called otoacoustic emissions and one special case the investigators are st...
The study is aimed at comparing the differential effects of two widely used standardized meditation programs: Mindfulness-Based Stress Reduction (MBSR) and Compassion Cultivation Training ...
A measure of the total greenhouse gas emissions produced by an individual, organization, event, or product. It is measured in units of equivalent kilograms of CARBON DIOXIDE generated in a given time frame.
Gaseous elements, chemicals that are in the atmosphere that may contribute to GREENHOUSE EFFECT.
Self-generated faint acoustic signals from the inner ear (COCHLEA) without external stimulation. These faint signals can be recorded in the EAR CANAL and are indications of active OUTER AUDITORY HAIR CELLS. Spontaneous otoacoustic emissions are found in all classes of land vertebrates.
Places provided for the cultivation and/or display of PLANTS.
The science of soil cultivation, crop production, and livestock raising.