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description Publicationkeyboard_double_arrow_right Conference object 2013 FrancePublisher:D.M. HOGARTH Authors: Chopart, Jean-Louis; Bonnal, Laurent; Martiné, Jean-François; Sabatier, Daniel;Two studies conducted in Guadeloupe (West Indies) and Réunion (Indian Ocean) islands were designed to investigate the benefits of producing sugarcane as an energy crop and to assess the influence of agroclimatic factors on energy efficiency, respectively. In this context, it is essential to know the low heating value of the dry above-ground biomass (LHVd, MJ/kg) and its energy yield (EY, MJ/m2) in order to select the best varieties and set up a payment method for growers. Eighteen Poaceae (sugarcane and Erianthus) cultivars were compared under wet tropical environmental conditions in Guadeloupe. Three sugarcane cultivars were studied in four contrasting environments in Réunion. The partition sampling and biomass measurement procedures were identical at both locations. Low heating value (LHV) predictions were achieved using near-infrared reflectance spectroscopy (NIRS) after specific calibration (Guadeloupe), or arithmetically after lignocellulosic compound prediction (Réunion). In both studies, LHV variability was very low and slightly dependent on the site, cultivar and above-ground biomass components (millable stalks and tops, and green and dead leaves). Considering the overall dry above-ground biomass (DAB, kg/m2), the LHVd was calculated by averaging 159 samples (mean 16.65 MJ/kg) in Guadeloupe and 315 samples (mean 16.45 MJ/kg) for Réunion. An excellent linear relationship between the DAB and its EY, regardless of cultivar, age and environment, was found (n = 474 and R² = 0.99). Sugarcane energy content assessment could thus be simplified by measuring the DAB, while enabling development of a faster method of payment for growers based on the DAB measurement and the correlation between DAB and EY. Finally, the findings of this study should allow growers to rapidly determine the commercial value of their sugarcane crops, and also enable purchasers to assess the amount of recoverable energy. (Résumé d'auteur)
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2017Embargo end date: 10 May 2017 GermanyPublisher:RWTH Aachen University Authors: Barsoum, Mirna;Increasing agricultural productivity is one of the most important aims of modern biotechnology. One way to enhance the productivity of crop species is to enhance the efficiency of photosynthesis. In C3 plants the oxygenase activity of Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo) limits the photosynthetic efficiency. The green microalgae Chlamydomonas reinhardtii has evolved a CO2 concentration mechanism (CCM) by increasing the CO2 concentration in the chloroplast stroma where RuBisCO is located. Four independent transgenic tobacco genotypes (LA, LB, C1 and C3) were generated producing the low CO2-inducible protein A and B (LCIA and LCIB) or the carbonic anhydrases I and III (CAH1 and CAH3) from C. reinhardtii CCM in the envelope, stroma, intermembrane space or thylakoid lumen of tobacco chloroplasts, respectively. All four recombinant proteins were active in planta, which had a substantial impact on carbon and nitrogen metabolism. Increasing the CO2 concentration near RuBisCO resulted in an enhanced rate of photosynthesis (by up to 15%), efficiency of photosystem II (by up to 18%) and chlorophyll content (by up to 19%). Although to differing extents, all four transgenic genotypes grew faster than wild-type plants, produced more shoot biomass (up to 45% more fresh weight or 38% more dry weight in the LA lines) and accumulated more photosynthetic end products, reflecting the higher rate of photosynthetic CO2 fixation. The proteome analysis revealed that the proteins changed in the transgenic genotypes compared to the wild-type plants were primarily associated with the regulation of the Calvin cycle and the amino acid biosynthesis. Metabolic analysis of the transgenic LA, LB and C3 plants revealed an increase in the levels of carbohydrates and also of most amino acids. Furthermore, transgenic LA and LB plants could maintain the enhanced biomass under low nitrogen conditions, where similarly-treated wild-type plants grew more slowly. The data generated in the present study confirmed that even single Chlamydomonas CCM components can be integrated into C3 plants to increase biomass, suggesting that transgenic lines combining multiple components or even a complete CCM could further increase the productivity and yield of C3 crops. RWTH Aachen University, Diss., 2017; Aachen, 1 Online-Ressource (151 Seiten) : Illustrationen, Diagramme(2017). = RWTH Aachen University, Diss., 2017 Published by Aachen
Publikationsserver d... arrow_drop_down Publikationsserver der RWTH Aachen UniversityDoctoral thesis . 2017Data sources: Publikationsserver der RWTH Aachen Universityadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Publikationsserver d... arrow_drop_down Publikationsserver der RWTH Aachen UniversityDoctoral thesis . 2017Data sources: Publikationsserver der RWTH Aachen Universityadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2018Embargo end date: 01 Aug 2018 GermanyPublisher:Technische Universität Berlin Authors: Bach, Vanessa;Ressourcen stellen die Basis für eine erfolgreiche industrielle und technologische Entwicklung dar und somit auch für den Wohlstand heutiger und zukünftiger Generationen. Mit steigender Ressourcennutzung nehmen auch die (physische und sozio-ökonomische) Verfügbarkeit abiotischer und biotischer Ressourcen, die Umweltverschmutzung und die sozialen Auswirkungen durch den Abbau und Nutzung der Ressourcen zu. Um den Erfolg implementierter Strategien (und deren Maßnahmen) hinsichtlich ihres Beitrags zu einem effizienten und nachhaltigen Umgang mit Ressourcen zu bewerten, bedarf es an entsprechenden Bewertungsmethoden. Diese Dissertation stellt vier Methoden bereit um die Bewertung abiotischer und biotischer Ressourcennutzung im Kontext der Nachhaltigkeit auf Produkt- und regionaler Ebene in konsistenter Weise zu bewerten. Die Methode zur Bewertung abiotischer Ressourcen auf Produktebene betrachtet insgesamt 21 relevante Aspekte und stellt Indikatoren zur Quantifizierung bereit. Für die Bewertung der sozio-ökonomischen Einschränkungen von Lieferketten ist eine neuer Ansatz entwickelt, der geopolitische, politische und regulative Aspekte berücksichtigt. Des Weiteren sind Screening-Indikatoren verfügbar, die die gesellschaftliche Akzeptanz der Ressourcennutzung adressieren. Um die Verfügbarkeit terrestrischer biotischer Ressourcen in Produktsystemen zu bewerten, wurde eine umfassende Methode mit 25 Indikatoren erstellt. Des Weiteren wird ein Ansatz vorgestellt, der es ermöglicht eine konsistente Zusammenführung und somit auch Bewertung verschiedener Ressourcentypen zu ermöglichen. Er findet bei der Zusammenführung der entwickelten Methoden zur Bewertung abiotischer und biotischer Ressourcen Anwendung. Da die Nutzung von Ressourcen auch auf Macro-Ebene betrachtet werden muss, wurde eine Methode zur Bewertung abiotischer Ressourcen auf regionaler Ebene entwickelt, die 25 Indikatoren für die Bewertung der Kritikalität (Verfügbarkeit von Ressourcen und Vulnerabilität der Region) und der gesellschaftlichen Akzeptanz zur Verfügung stellt. Verschiedene Fallstudien wurden durchgeführt um die Anwendbarkeit der entwickelten Methoden aufzuzeigen und zu verdeutlichen, warum eine umfassende Bewertung der Ressourcennutzung notwendig ist. Die Fallstudien umfassen u.a. die Bewertung eines Smartphones, Pkw-Herstellung und Biokraftstoffe. Die Anwendbarkeit der Methoden wird zudem erhöht, indem Indikatorwerte für 36 Metalle und 4 fossile Rohstoffe zur Verfügung gestellt werden. Die Bewertung der Nutzung abiotischer und biotischer Ressourcen auf Produkt- und regionaler Ebene wird mit dieser Dissertation signifikant verbessert, indem vier wissenschaftliche Methoden zur robusten und umfassenden Bewertung aller drei Nachhaltigkeitsdimensionen bereitgestellt werden. Resources are the basis for a thriving industrial and technological development and therefore for prosperity of present and future generations. With increasing resource use, challenges with regard to (physical and socio-economic) availability of abiotic and biotic resources and raw materials, pollution of the environment as well as social impacts associated with resource extraction and use arise. To evaluate the success of strategies managing resource use more efficiently and sustainably methodologies are required to comprehensively assess resource use and related impacts. This thesis provides four methodologies to improve the assessment of abiotic and biotic resource use in the context of sustainability on product and regional level. For the method to assess abiotic resources use on product level overall 21 aspects are considered as relevant and indicator for quantification are provided. In order to determine socio-economic supply chain restrictions a new approach is developed, considering geopolitical, political and regulatory aspects affecting resource extraction and use. Further, screening indicators are established to evaluate the societal acceptance of resources with regard to compliance with social and environmental standards. To assess the availability of terrestrial biotic resources in product systems a comprehensive methodology is established, which includes 25 indicators. Further, an approach is proposed to combine assessment methodologies in a consistent way. This approach is applied to the developed method of this thesis leading to a combined methodology. The use of resources also has to be considered on macro-economic. Thus, a methodology is developed providing 25 indicators for the two dimensions criticality, consisting of the sub-dimensions (physical and socio-economic) availability and vulnerability, as well as societal acceptance. Several case studies are carried out to demonstrate the applicability of the developed methods and to confirm the need for a comprehensive assess of resource use on micro and macro level, e.g. case studies for smart phones and cars, for biofuels produced from rapeseed and soybean. The applicability of the methodologies is further enhanced by providing indicator results for 36 metals and four fossil raw materials. The assessment of abiotic and biotic resource use on product and regional level is improved significantly by establishing four scientifically robust yet applicable methodologies, which consider multiple aspects of resource use in all three sustainability dimensions.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Preprint 2009Publisher:Unknown Wagner, Klaus; Neuwirth, Julia; Janetschek, Hubert; Wagner, Klaus; Neuwirth, Julia; Janetschek, Hubert;Recent extreme weather events have resulted in an ongoing discussion on the issues of land use and compensation payments within Austrian agriculture. Building on a functional evaluation system for agricultural lands as developed within the Interreg IIIB project “ILUP”, the national project “Agriculture and Flooding” has as its goal to classify the flood-protection contribution and flood sensitivity of agricultural lands. This, in turn, enables the recommendation of targeted measures for potentially improving flood situations, as well as an estimate of their implementation costs. In addition to the digital soil map, other fundamental sources used for the project are the digital flood risk map, IACS land-use data and works by the Institute for Land and Water Management Research. Reference values and marginal returns sourced from the Federal Institute of Agricultural Economics also flow into the cost estimates for the recommended combination. The results will contribute to an understanding of the multifunctionality of agricultural lands and to the setting of priorities on a regional scale regarding packaged flood-prevention and damage-minimization. However, the results at hand can only serve as one step toward regional flood protection projects, whose development will require the cooperation of all interest groups.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Research , Report 2023Embargo end date: 17 Apr 2023 GermanyPublisher:Center for Development Research (ZEF) Authors: Schilling, Friederike; Baumüller, Heike; Ecuru, Julius; von Braun, Joachim;doi: 10.48565/bonndoc-122
handle: 10419/278420 , 20.500.11811/10771
The IPCC stresses the importance of achieving net-zero CO2 emissions worldwide by 2050 and natural climate solutions, particularly carbon farming, can play a significant role in this goal. However, current markets do not account for environmental externalities, which creates a mismatch between individual costs and societal benefits. Payment systems linked to carbon farming practices could help bridge this gap. Research is essential to develop effective agricultural carbon markets, and this study focuses on the opportunities and challenges faced by smallholder farmers in these markets. The research examines four areas: agricultural markets as a funding source for carbon farming, payments for carbon sequestration, opportunities for smallholder farmers, and cost-effective monitoring and verification of carbon stocks. Further research is needed to monitor carbon sequestration accurately, reduce GHG emissions, and develop institutional arrangements to promote sustainable production methods in Africa.
bonndoc - The Reposi... arrow_drop_down bonndoc - The Repository of the University of BonnReport . 2023Full-Text: https://hdl.handle.net/20.500.11811/10771Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert bonndoc - The Reposi... arrow_drop_down bonndoc - The Repository of the University of BonnReport . 2023Full-Text: https://hdl.handle.net/20.500.11811/10771Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object 2023 FrancePublisher:Colloque InterUT Systèmes sûrs et durables Authors: Calcagno, Vincenzo; Meenakshisundaram, Shruthi; Ceballos, Claire; Fayeulle, Antoine; +7 AuthorsCalcagno, Vincenzo; Meenakshisundaram, Shruthi; Ceballos, Claire; Fayeulle, Antoine; Léonard, Estelle; Herledan, Virginie; Krafft, Jean-Marc; Millot, Yannick; Jolivalt, Claude; Pauss, André; Liu, Xiaojun;doi: 10.34746/kjsg-8d70
Lignocellulosic biomass is a very attractive substrate for biogas production via anaerobic digestion. Among all, straw represents a very interesting and worldwide diffused agricultural by-product. However, due to the intrinsically complex structure of lignocellulosic biomass, straw has low biodegradability which results in low biogas yield. To increase the biogas production, chemical and physical pretreatments have been performed – i.e., size reduction, autoclave, and oxidation. The pretreatment conditions have been mitigated, in order to reduce their economic impact on the overall process and to make such pretreatments attractive at industrial level. The effects of the biomass pretreatments have been evaluated both by assessing the biomethane productivity in an anaerobic bioreactor and, in parallel, by characterizing the biomass at different levels – elemental content, functional groups, structural changes, and surface morphology. Results show a poor correlation between biogas production and the structural and chemical biomass changes. These findings confirm a more general issue: the difficulty of using biomass characterization alone to explain and predict the biogas production enhancement and of using such information to further improve biomass pretreatments.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Preprint 2013Publisher:Unknown Funded by:UKRI | BBSRC Centre For Sustaina..., UKRI | Social, Economic and Envi...UKRI| BBSRC Centre For Sustainable Bioenergy (BSBEC): Programme 4: Lignocellulosic Conversion To Bioethanol (LACE) ,UKRI| Social, Economic and Environmental Implications of Increasing Rural Land Use under Energy CropsGlithero, N. J.; Ramsden, S. J.; Wilson, P.; Glithero, N. J.; Ramsden, S. J.; Wilson, P.;Meeting the EU renewable fuel targets for 2020 will require a large increase in bioenergy feedstocks. To date, first generation biofuels have been the major response to meeting these targets. However, second generation biofuels from dedicated energy crops (e.g. miscanthus) or crop residues (e.g. straw) offer potential. Based on an on-farm survey of Farm Business Survey arable farmers in England and aggregated to national levels, we estimate that 5.27 Mt of cereal straw is produced annually on these farm types, of which farmers indicated that they would be willing to sell 2.5 Mt for bioenergy purposes, provided appropriate contractual conditions meet their needs. However, only 555Kt-840Kt would be obtained from straw currently incorporated into the soil. Timeliness of crop operations and benefits to soil were cited as key reasons for incorporating straw. A ‘good price’ represents the key incentive to encourage straw baling. With respect to dedicated energy crops, 81.6% (87.7%) would not consider growing miscanthus (SRC), while respectively, 17.2% (11.9%) would consider growing and 1.2% (0.4%) were currently growing these crops. Assuming 9.29% (average percentage of arable land set-aside between 1996-2005) of their utilised agricultural area to these crops, 89,900 ha (50,700 ha) of miscanthus (SRC) would be grown on English arable farms. Land quality issues, profitability and committing land for a long period of time were cited as both negative and positive reasons for farmer decisions about their level of willingness to grow these crops. Food and fuel policies must increasingly be integrated in order to meet societal goals without generating unintended consequences.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Part of book or chapter of book 2018 FrancePublisher:Unknown Di Mario, L.; Rao, Krishna C.; Drechsel, Pay; Di Mario, L.; Rao, Krishna C.; Drechsel, Pay;handle: 10568/93268
In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right External research report 2022 United KingdomPublisher:Scotland’s Rural College Cole, Lorna J; Holland, John P; Eory, Vera; Karley, Alison J; Hawes, Cathy; Walker, Robin L; Watson, Christine A;Agroecology is receiving increasing attention for its potential to reconcile environmental, sustainability and food production goals, through restoring the health of agricultural ecosystems and increasing the resilience of farms to future challenges. This study examined five different agroecological approaches that are currently practiced in Scotland to determine their potential to support the delivery of policy targets relating to climate change, biodiversity, and food production.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2013Publisher:Unknown Taheripour, Farzad; Fiegel, Julie; Tyner, Wallace E.; Taheripour, Farzad; Fiegel, Julie; Tyner, Wallace E.;This paper first develops a partial equilibrium (PE) model to examine impacts of converting corn stover to biofuel on markets for corn and soybeans at the national market level. The PE model links gasoline, corn ethanol, dried distiller grains, corn, soybeans, and soybean meal markets in the presence and absence of a viable market for corn stover. The model also includes a technology which converts corn stover to bio-gasoline (a drop-in biofuel). The model evaluates profitability of the ethanol and bio-gasoline industries and assumes that these industries will expand/contract until profits reach zero. Given these assumptions and according to the predetermined supply and demand elasticities, the model determines equilibrium prices and their corresponding quantities for given exogenous variables defined in the model (such as crude oil price). The model is calibrated using data obtained for 2010 for USA economy and then solved for alternative crude oil prices in the presence and absence of a fixed subsidy of $1.01per gallon of bio-gasoline produced. Then we used the Purdue Crop Linear Programing (PCLP) model to assess farmers’ reactions to market equilibrium prices for corn, soybeans, and corn stover in the presence of a viable market for corn stover. The PCLP model determines profit-maximizing decisions for a given farm given its existing resources and estimated prices of commodities and input costs. We tuned the PCLP model according to the market clearing prices obtained from the PE model for a case when the crude oil price is $100 per barrel. Then using the tuned PCLP model we determined the optimum land allocation options for farmers. The partial equilibrium analyses show that: 1) with no bio-gasoline subsidy a limited amount of corn stover will be converted to biofuel even at very high crude oil prices; 2) The bio-gasoline subsidy could significantly boost production of this biofuel in particular at medium and higher crude oil prices; 3) no more than 45% of available corn stover will be removed for biofuel production; 4) converting corn stover to bio-gasoline boosts corn production, increases corn-corn rotation, and decreases supply of soybeans; and 5) converting corn stover to bio-gasoline changes the soybean to corn price ratio in favor of soybeans, at least in the very short term. The results obtained from the PCLP model show that the farm level land allocation decision is sensitive to the profitability of corn stover processing activities. When corn stover removal is introduced as a new option under the base case scenario at a corn stover price of $111 per ton) farmers allocate about 66% of their land to the corn-corn rotation and remove stover from their land. In this case corn stover is removed from 78.2% of available land at a rate of 1.18 tons per acre. If corn stover is demanded for biofuel production, then a major shift will be observed in crop rotations.
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description Publicationkeyboard_double_arrow_right Conference object 2013 FrancePublisher:D.M. HOGARTH Authors: Chopart, Jean-Louis; Bonnal, Laurent; Martiné, Jean-François; Sabatier, Daniel;Two studies conducted in Guadeloupe (West Indies) and Réunion (Indian Ocean) islands were designed to investigate the benefits of producing sugarcane as an energy crop and to assess the influence of agroclimatic factors on energy efficiency, respectively. In this context, it is essential to know the low heating value of the dry above-ground biomass (LHVd, MJ/kg) and its energy yield (EY, MJ/m2) in order to select the best varieties and set up a payment method for growers. Eighteen Poaceae (sugarcane and Erianthus) cultivars were compared under wet tropical environmental conditions in Guadeloupe. Three sugarcane cultivars were studied in four contrasting environments in Réunion. The partition sampling and biomass measurement procedures were identical at both locations. Low heating value (LHV) predictions were achieved using near-infrared reflectance spectroscopy (NIRS) after specific calibration (Guadeloupe), or arithmetically after lignocellulosic compound prediction (Réunion). In both studies, LHV variability was very low and slightly dependent on the site, cultivar and above-ground biomass components (millable stalks and tops, and green and dead leaves). Considering the overall dry above-ground biomass (DAB, kg/m2), the LHVd was calculated by averaging 159 samples (mean 16.65 MJ/kg) in Guadeloupe and 315 samples (mean 16.45 MJ/kg) for Réunion. An excellent linear relationship between the DAB and its EY, regardless of cultivar, age and environment, was found (n = 474 and R² = 0.99). Sugarcane energy content assessment could thus be simplified by measuring the DAB, while enabling development of a faster method of payment for growers based on the DAB measurement and the correlation between DAB and EY. Finally, the findings of this study should allow growers to rapidly determine the commercial value of their sugarcane crops, and also enable purchasers to assess the amount of recoverable energy. (Résumé d'auteur)
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2017Embargo end date: 10 May 2017 GermanyPublisher:RWTH Aachen University Authors: Barsoum, Mirna;Increasing agricultural productivity is one of the most important aims of modern biotechnology. One way to enhance the productivity of crop species is to enhance the efficiency of photosynthesis. In C3 plants the oxygenase activity of Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo) limits the photosynthetic efficiency. The green microalgae Chlamydomonas reinhardtii has evolved a CO2 concentration mechanism (CCM) by increasing the CO2 concentration in the chloroplast stroma where RuBisCO is located. Four independent transgenic tobacco genotypes (LA, LB, C1 and C3) were generated producing the low CO2-inducible protein A and B (LCIA and LCIB) or the carbonic anhydrases I and III (CAH1 and CAH3) from C. reinhardtii CCM in the envelope, stroma, intermembrane space or thylakoid lumen of tobacco chloroplasts, respectively. All four recombinant proteins were active in planta, which had a substantial impact on carbon and nitrogen metabolism. Increasing the CO2 concentration near RuBisCO resulted in an enhanced rate of photosynthesis (by up to 15%), efficiency of photosystem II (by up to 18%) and chlorophyll content (by up to 19%). Although to differing extents, all four transgenic genotypes grew faster than wild-type plants, produced more shoot biomass (up to 45% more fresh weight or 38% more dry weight in the LA lines) and accumulated more photosynthetic end products, reflecting the higher rate of photosynthetic CO2 fixation. The proteome analysis revealed that the proteins changed in the transgenic genotypes compared to the wild-type plants were primarily associated with the regulation of the Calvin cycle and the amino acid biosynthesis. Metabolic analysis of the transgenic LA, LB and C3 plants revealed an increase in the levels of carbohydrates and also of most amino acids. Furthermore, transgenic LA and LB plants could maintain the enhanced biomass under low nitrogen conditions, where similarly-treated wild-type plants grew more slowly. The data generated in the present study confirmed that even single Chlamydomonas CCM components can be integrated into C3 plants to increase biomass, suggesting that transgenic lines combining multiple components or even a complete CCM could further increase the productivity and yield of C3 crops. RWTH Aachen University, Diss., 2017; Aachen, 1 Online-Ressource (151 Seiten) : Illustrationen, Diagramme(2017). = RWTH Aachen University, Diss., 2017 Published by Aachen
Publikationsserver d... arrow_drop_down Publikationsserver der RWTH Aachen UniversityDoctoral thesis . 2017Data sources: Publikationsserver der RWTH Aachen Universityadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Publikationsserver d... arrow_drop_down Publikationsserver der RWTH Aachen UniversityDoctoral thesis . 2017Data sources: Publikationsserver der RWTH Aachen Universityadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2018Embargo end date: 01 Aug 2018 GermanyPublisher:Technische Universität Berlin Authors: Bach, Vanessa;Ressourcen stellen die Basis für eine erfolgreiche industrielle und technologische Entwicklung dar und somit auch für den Wohlstand heutiger und zukünftiger Generationen. Mit steigender Ressourcennutzung nehmen auch die (physische und sozio-ökonomische) Verfügbarkeit abiotischer und biotischer Ressourcen, die Umweltverschmutzung und die sozialen Auswirkungen durch den Abbau und Nutzung der Ressourcen zu. Um den Erfolg implementierter Strategien (und deren Maßnahmen) hinsichtlich ihres Beitrags zu einem effizienten und nachhaltigen Umgang mit Ressourcen zu bewerten, bedarf es an entsprechenden Bewertungsmethoden. Diese Dissertation stellt vier Methoden bereit um die Bewertung abiotischer und biotischer Ressourcennutzung im Kontext der Nachhaltigkeit auf Produkt- und regionaler Ebene in konsistenter Weise zu bewerten. Die Methode zur Bewertung abiotischer Ressourcen auf Produktebene betrachtet insgesamt 21 relevante Aspekte und stellt Indikatoren zur Quantifizierung bereit. Für die Bewertung der sozio-ökonomischen Einschränkungen von Lieferketten ist eine neuer Ansatz entwickelt, der geopolitische, politische und regulative Aspekte berücksichtigt. Des Weiteren sind Screening-Indikatoren verfügbar, die die gesellschaftliche Akzeptanz der Ressourcennutzung adressieren. Um die Verfügbarkeit terrestrischer biotischer Ressourcen in Produktsystemen zu bewerten, wurde eine umfassende Methode mit 25 Indikatoren erstellt. Des Weiteren wird ein Ansatz vorgestellt, der es ermöglicht eine konsistente Zusammenführung und somit auch Bewertung verschiedener Ressourcentypen zu ermöglichen. Er findet bei der Zusammenführung der entwickelten Methoden zur Bewertung abiotischer und biotischer Ressourcen Anwendung. Da die Nutzung von Ressourcen auch auf Macro-Ebene betrachtet werden muss, wurde eine Methode zur Bewertung abiotischer Ressourcen auf regionaler Ebene entwickelt, die 25 Indikatoren für die Bewertung der Kritikalität (Verfügbarkeit von Ressourcen und Vulnerabilität der Region) und der gesellschaftlichen Akzeptanz zur Verfügung stellt. Verschiedene Fallstudien wurden durchgeführt um die Anwendbarkeit der entwickelten Methoden aufzuzeigen und zu verdeutlichen, warum eine umfassende Bewertung der Ressourcennutzung notwendig ist. Die Fallstudien umfassen u.a. die Bewertung eines Smartphones, Pkw-Herstellung und Biokraftstoffe. Die Anwendbarkeit der Methoden wird zudem erhöht, indem Indikatorwerte für 36 Metalle und 4 fossile Rohstoffe zur Verfügung gestellt werden. Die Bewertung der Nutzung abiotischer und biotischer Ressourcen auf Produkt- und regionaler Ebene wird mit dieser Dissertation signifikant verbessert, indem vier wissenschaftliche Methoden zur robusten und umfassenden Bewertung aller drei Nachhaltigkeitsdimensionen bereitgestellt werden. Resources are the basis for a thriving industrial and technological development and therefore for prosperity of present and future generations. With increasing resource use, challenges with regard to (physical and socio-economic) availability of abiotic and biotic resources and raw materials, pollution of the environment as well as social impacts associated with resource extraction and use arise. To evaluate the success of strategies managing resource use more efficiently and sustainably methodologies are required to comprehensively assess resource use and related impacts. This thesis provides four methodologies to improve the assessment of abiotic and biotic resource use in the context of sustainability on product and regional level. For the method to assess abiotic resources use on product level overall 21 aspects are considered as relevant and indicator for quantification are provided. In order to determine socio-economic supply chain restrictions a new approach is developed, considering geopolitical, political and regulatory aspects affecting resource extraction and use. Further, screening indicators are established to evaluate the societal acceptance of resources with regard to compliance with social and environmental standards. To assess the availability of terrestrial biotic resources in product systems a comprehensive methodology is established, which includes 25 indicators. Further, an approach is proposed to combine assessment methodologies in a consistent way. This approach is applied to the developed method of this thesis leading to a combined methodology. The use of resources also has to be considered on macro-economic. Thus, a methodology is developed providing 25 indicators for the two dimensions criticality, consisting of the sub-dimensions (physical and socio-economic) availability and vulnerability, as well as societal acceptance. Several case studies are carried out to demonstrate the applicability of the developed methods and to confirm the need for a comprehensive assess of resource use on micro and macro level, e.g. case studies for smart phones and cars, for biofuels produced from rapeseed and soybean. The applicability of the methodologies is further enhanced by providing indicator results for 36 metals and four fossil raw materials. The assessment of abiotic and biotic resource use on product and regional level is improved significantly by establishing four scientifically robust yet applicable methodologies, which consider multiple aspects of resource use in all three sustainability dimensions.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Preprint 2009Publisher:Unknown Wagner, Klaus; Neuwirth, Julia; Janetschek, Hubert; Wagner, Klaus; Neuwirth, Julia; Janetschek, Hubert;Recent extreme weather events have resulted in an ongoing discussion on the issues of land use and compensation payments within Austrian agriculture. Building on a functional evaluation system for agricultural lands as developed within the Interreg IIIB project “ILUP”, the national project “Agriculture and Flooding” has as its goal to classify the flood-protection contribution and flood sensitivity of agricultural lands. This, in turn, enables the recommendation of targeted measures for potentially improving flood situations, as well as an estimate of their implementation costs. In addition to the digital soil map, other fundamental sources used for the project are the digital flood risk map, IACS land-use data and works by the Institute for Land and Water Management Research. Reference values and marginal returns sourced from the Federal Institute of Agricultural Economics also flow into the cost estimates for the recommended combination. The results will contribute to an understanding of the multifunctionality of agricultural lands and to the setting of priorities on a regional scale regarding packaged flood-prevention and damage-minimization. However, the results at hand can only serve as one step toward regional flood protection projects, whose development will require the cooperation of all interest groups.
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For further information contact us at helpdesk@openaire.eu1 citations 1 popularity Average influence Average impulse Average Powered by BIP!
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Research , Report 2023Embargo end date: 17 Apr 2023 GermanyPublisher:Center for Development Research (ZEF) Authors: Schilling, Friederike; Baumüller, Heike; Ecuru, Julius; von Braun, Joachim;doi: 10.48565/bonndoc-122
handle: 10419/278420 , 20.500.11811/10771
The IPCC stresses the importance of achieving net-zero CO2 emissions worldwide by 2050 and natural climate solutions, particularly carbon farming, can play a significant role in this goal. However, current markets do not account for environmental externalities, which creates a mismatch between individual costs and societal benefits. Payment systems linked to carbon farming practices could help bridge this gap. Research is essential to develop effective agricultural carbon markets, and this study focuses on the opportunities and challenges faced by smallholder farmers in these markets. The research examines four areas: agricultural markets as a funding source for carbon farming, payments for carbon sequestration, opportunities for smallholder farmers, and cost-effective monitoring and verification of carbon stocks. Further research is needed to monitor carbon sequestration accurately, reduce GHG emissions, and develop institutional arrangements to promote sustainable production methods in Africa.
bonndoc - The Reposi... arrow_drop_down bonndoc - The Repository of the University of BonnReport . 2023Full-Text: https://hdl.handle.net/20.500.11811/10771Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert bonndoc - The Reposi... arrow_drop_down bonndoc - The Repository of the University of BonnReport . 2023Full-Text: https://hdl.handle.net/20.500.11811/10771Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object 2023 FrancePublisher:Colloque InterUT Systèmes sûrs et durables Authors: Calcagno, Vincenzo; Meenakshisundaram, Shruthi; Ceballos, Claire; Fayeulle, Antoine; +7 AuthorsCalcagno, Vincenzo; Meenakshisundaram, Shruthi; Ceballos, Claire; Fayeulle, Antoine; Léonard, Estelle; Herledan, Virginie; Krafft, Jean-Marc; Millot, Yannick; Jolivalt, Claude; Pauss, André; Liu, Xiaojun;doi: 10.34746/kjsg-8d70
Lignocellulosic biomass is a very attractive substrate for biogas production via anaerobic digestion. Among all, straw represents a very interesting and worldwide diffused agricultural by-product. However, due to the intrinsically complex structure of lignocellulosic biomass, straw has low biodegradability which results in low biogas yield. To increase the biogas production, chemical and physical pretreatments have been performed – i.e., size reduction, autoclave, and oxidation. The pretreatment conditions have been mitigated, in order to reduce their economic impact on the overall process and to make such pretreatments attractive at industrial level. The effects of the biomass pretreatments have been evaluated both by assessing the biomethane productivity in an anaerobic bioreactor and, in parallel, by characterizing the biomass at different levels – elemental content, functional groups, structural changes, and surface morphology. Results show a poor correlation between biogas production and the structural and chemical biomass changes. These findings confirm a more general issue: the difficulty of using biomass characterization alone to explain and predict the biogas production enhancement and of using such information to further improve biomass pretreatments.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Preprint 2013Publisher:Unknown Funded by:UKRI | BBSRC Centre For Sustaina..., UKRI | Social, Economic and Envi...UKRI| BBSRC Centre For Sustainable Bioenergy (BSBEC): Programme 4: Lignocellulosic Conversion To Bioethanol (LACE) ,UKRI| Social, Economic and Environmental Implications of Increasing Rural Land Use under Energy CropsGlithero, N. J.; Ramsden, S. J.; Wilson, P.; Glithero, N. J.; Ramsden, S. J.; Wilson, P.;Meeting the EU renewable fuel targets for 2020 will require a large increase in bioenergy feedstocks. To date, first generation biofuels have been the major response to meeting these targets. However, second generation biofuels from dedicated energy crops (e.g. miscanthus) or crop residues (e.g. straw) offer potential. Based on an on-farm survey of Farm Business Survey arable farmers in England and aggregated to national levels, we estimate that 5.27 Mt of cereal straw is produced annually on these farm types, of which farmers indicated that they would be willing to sell 2.5 Mt for bioenergy purposes, provided appropriate contractual conditions meet their needs. However, only 555Kt-840Kt would be obtained from straw currently incorporated into the soil. Timeliness of crop operations and benefits to soil were cited as key reasons for incorporating straw. A ‘good price’ represents the key incentive to encourage straw baling. With respect to dedicated energy crops, 81.6% (87.7%) would not consider growing miscanthus (SRC), while respectively, 17.2% (11.9%) would consider growing and 1.2% (0.4%) were currently growing these crops. Assuming 9.29% (average percentage of arable land set-aside between 1996-2005) of their utilised agricultural area to these crops, 89,900 ha (50,700 ha) of miscanthus (SRC) would be grown on English arable farms. Land quality issues, profitability and committing land for a long period of time were cited as both negative and positive reasons for farmer decisions about their level of willingness to grow these crops. Food and fuel policies must increasingly be integrated in order to meet societal goals without generating unintended consequences.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Part of book or chapter of book 2018 FrancePublisher:Unknown Di Mario, L.; Rao, Krishna C.; Drechsel, Pay; Di Mario, L.; Rao, Krishna C.; Drechsel, Pay;handle: 10568/93268
In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.22004/ag.econ.284239&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.22004/ag.econ.284239&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right External research report 2022 United KingdomPublisher:Scotland’s Rural College Cole, Lorna J; Holland, John P; Eory, Vera; Karley, Alison J; Hawes, Cathy; Walker, Robin L; Watson, Christine A;Agroecology is receiving increasing attention for its potential to reconcile environmental, sustainability and food production goals, through restoring the health of agricultural ecosystems and increasing the resilience of farms to future challenges. This study examined five different agroecological approaches that are currently practiced in Scotland to determine their potential to support the delivery of policy targets relating to climate change, biodiversity, and food production.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______463::990697bfca857b04ae5ce0a42e0ae5c2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______463::990697bfca857b04ae5ce0a42e0ae5c2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2013Publisher:Unknown Taheripour, Farzad; Fiegel, Julie; Tyner, Wallace E.; Taheripour, Farzad; Fiegel, Julie; Tyner, Wallace E.;This paper first develops a partial equilibrium (PE) model to examine impacts of converting corn stover to biofuel on markets for corn and soybeans at the national market level. The PE model links gasoline, corn ethanol, dried distiller grains, corn, soybeans, and soybean meal markets in the presence and absence of a viable market for corn stover. The model also includes a technology which converts corn stover to bio-gasoline (a drop-in biofuel). The model evaluates profitability of the ethanol and bio-gasoline industries and assumes that these industries will expand/contract until profits reach zero. Given these assumptions and according to the predetermined supply and demand elasticities, the model determines equilibrium prices and their corresponding quantities for given exogenous variables defined in the model (such as crude oil price). The model is calibrated using data obtained for 2010 for USA economy and then solved for alternative crude oil prices in the presence and absence of a fixed subsidy of $1.01per gallon of bio-gasoline produced. Then we used the Purdue Crop Linear Programing (PCLP) model to assess farmers’ reactions to market equilibrium prices for corn, soybeans, and corn stover in the presence of a viable market for corn stover. The PCLP model determines profit-maximizing decisions for a given farm given its existing resources and estimated prices of commodities and input costs. We tuned the PCLP model according to the market clearing prices obtained from the PE model for a case when the crude oil price is $100 per barrel. Then using the tuned PCLP model we determined the optimum land allocation options for farmers. The partial equilibrium analyses show that: 1) with no bio-gasoline subsidy a limited amount of corn stover will be converted to biofuel even at very high crude oil prices; 2) The bio-gasoline subsidy could significantly boost production of this biofuel in particular at medium and higher crude oil prices; 3) no more than 45% of available corn stover will be removed for biofuel production; 4) converting corn stover to bio-gasoline boosts corn production, increases corn-corn rotation, and decreases supply of soybeans; and 5) converting corn stover to bio-gasoline changes the soybean to corn price ratio in favor of soybeans, at least in the very short term. The results obtained from the PCLP model show that the farm level land allocation decision is sensitive to the profitability of corn stover processing activities. When corn stover removal is introduced as a new option under the base case scenario at a corn stover price of $111 per ton) farmers allocate about 66% of their land to the corn-corn rotation and remove stover from their land. In this case corn stover is removed from 78.2% of available land at a rate of 1.18 tons per acre. If corn stover is demanded for biofuel production, then a major shift will be observed in crop rotations.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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