Energy flow modeling and sensitivity analysis of inputs for canola production in Iran

Mousavi‐Avval, Seyed Hashem; Rafiee, Shahin; Jafari, Ali; Mohammadi, Ali

doi:10.1016/j.jclepro.2011.04.013

Cited by 114 publications

(46 citation statements)

References 35 publications

(51 reference statements)

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“…Annualized values were calculated to account for differences in the years of observations. Energy was calculated by multiplying grain yields by a conversion factor: legumes and cereals, by 15 MJ kg −1 , and oilseed, by 25 MJ kg −1 Farine et al, 2010;Unakitan et al, 2010;Mousavi-Avval et al, 2011;KeshavarzAfshar and Chen, 2015). The variance of annualized energy outputs, fertilization, and grain N export was compared across increasingly intensified cropping systems at Moro, OR, Ritzville, WA, and Davenport, WA, all of which received <350 mm yr −1 within the study period.…”

Section: Calculations and Statistical Analysesmentioning

confidence: 99%

Impact of Climate Change Adaptation Strategies on Winter Wheat and Cropping System Performance across Precipitation Gradients in the Inland Pacific Northwest, USA

Maaz

Schillinger

Machado

et al. 2017

Front. Environ. Sci.

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Ecological instability and low resource use efficiencies are concerns for the long-term productivity of conventional cereal monoculture systems, particularly those threatened by projected climate change. Crop intensification, diversification, reduced tillage, and variable N management are among strategies proposed to mitigate and adapt to climate shifts in the inland Pacific Northwest (iPNW). Our objectives were to assess these strategies across iPNW agroecological zones and time for their impacts on (1) winter wheat (WW) (Triticum aestivum L.) productivity, (2) crop sequence productivity, and (3) N fertilizer use efficiency. Region-wide analysis indicated that WW yields increased with increasing annual precipitation, prior to maximizing at 520 mm yr −1 and subsequently declining when annual precipitation was not adjusted for available soil water holding capacity. While fallow periods were effective at mitigating low nitrogen (N) fertilization efficiencies under low precipitation, efficiencies declined as annual precipitation exceeded 500 mm yr −1 . Variability in the response of WW yields to annual precipitation and N fertilization among locations and within sites supports precision N management implementation across the region. In years receiving <350 mm precipitation yr −1 , WW yields declined when preceded by crops rather than summer fallow. Nevertheless, WW yields were greater when preceded by pulses and oilseeds rather than wheat across a range of yield potentials, and when under conservation tillage practices at low yield potentials. Despite the yield penalty associated with eliminating fallow prior to WW, cropping system level productivity was not affected by intensification, diversification, or conservation tillage. However, increased fertilizer N inputs, lower fertilizer N use efficiencies, and more yield variance may offset and limit the economic feasibility of intensified and diversified cropping systems.

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Section: Calculations and Statistical Analysesmentioning

confidence: 99%

Impact of Climate Change Adaptation Strategies on Winter Wheat and Cropping System Performance across Precipitation Gradients in the Inland Pacific Northwest, USA

Maaz

Schillinger

Machado

et al. 2017

Front. Environ. Sci.

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“…2). Seeding rates for soybeans and canola were estimated from existing literature Dale 2003, 2005;Mousavi-Avval et al 2011;Sieverding et al 2015) and regionally adjusted to each CMZ based on regional trial recommendations (Grady and Nleya 2010;MAES 2017;NDSU 2017). The seeding rates for carinata and camelina were obtained from the regional field trial data (Grady and Nleya 2010;MAES 2017;NDSU 2017;Sieverding et al 2016a) and industry best management practice literature (AAFC 2014;Agrisoma 2015).…”

Section: Biomass Productionmentioning

confidence: 99%

Comparative Farm-Gate Life Cycle Assessment of Oilseed Feedstocks in the Northern Great Plains

Moeller

Sieverding

Stone

2017

Biophys Econ Resour Qual

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“…The data used for fuel calculations was obtained from published studies [20,21]. The energy equivalent for the transportation of waste is about 3 MJ ton −1 km −1 (0.06 L ton −1 km −1 ).…”

Section: Transport Levelmentioning

confidence: 99%

An Assessment of the Sustainability of Lignocellulosic Bioethanol Production from Wastes in Iceland

Safarian

Unnþórsson

2018

Energies

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This paper describes the development of a model to comprehensively assess the sustainability impacts of producing lignocellulosic bioethanol from various types of municipal organic wastes (MOWs) in Iceland: paper and paperboard, timber and wood and garden waste. The tool integrates significant economic, energy, environmental and technical aspects to analyse and rank twelve systems using the most common pretreatment technologies: dilute acid, dilute alkali, hot water and steam explosion. The results show that among the MOWs, paper and paperboard have higher positive rankings under most assessments. Steam explosion is also ranked at the top from the economic, energy and environmental perspectives, followed by the hot water method for paper and timber wastes. Finally, a potential evaluation of total wastes and bioethanol production in Iceland is carried out. The results show that the average production of lignocellulosic bioethanol in 2015 could be 12.5, 11 and 3 thousand tons from paper, timber and garden wastes, respectively, and that production could reach about 15.9, 13.7 and 3.7 thousand tons, respectively, by 2030.

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Energy flow modeling and sensitivity analysis of inputs for canola production in Iran

Cited by 114 publications

References 35 publications

Impact of Climate Change Adaptation Strategies on Winter Wheat and Cropping System Performance across Precipitation Gradients in the Inland Pacific Northwest, USA

Impact of Climate Change Adaptation Strategies on Winter Wheat and Cropping System Performance across Precipitation Gradients in the Inland Pacific Northwest, USA

Comparative Farm-Gate Life Cycle Assessment of Oilseed Feedstocks in the Northern Great Plains

An Assessment of the Sustainability of Lignocellulosic Bioethanol Production from Wastes in Iceland

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