Text in English / The study analysed the effects of conservation farming in Zimbabwe using a mixed methodology approach. This analysis comes against the background of the recognition that climate change, as characterized by severe droughts, has played a significant role in reducing agricultural productivity, in the process leaving smallholder farmers and the nation of Zimbabwe exposed to recurrent food insecurity. Conservation farming was introduced as a climate adaptation strategy that was aimed at improving crop yields. The study focused on assessing the association between the adoption of conservation farming and a concomitant increase in agricultural productivity. This was key in understanding if there are benefits of using conservation farming as opposed to making use of the conventional method of farming. The study also investigated the nature of conservation farming being practiced in Umguza District; this was done in order to understand whether smallholder farmers are implementing all the key principles underpinning the use of conservation farming. The study further assessed the challenges and opportunities that exist through the use of conservation farming with the aim of coming up with sustainable solutions to the challenges affecting smallholder farmers. The study went on to assess the factors that determine the adoption and maximum utilization of conservation farming. Identification of these key variables was instrumental in the design of a localized conservation farming model. Study results revealed that conservation farming is an effective method of increasing agricultural productivity. The study also established that smallholder farmers are not implementing all the key principles of conservation farming and this was attributed to the failure to include the smallholder farmers in the design of conservation farming models. It was further revealed that smallholder farmers face various challenges that include access to inputs and limited support from the government. Implications of the study highlight the need for the community to be actively involved in the design of a conservation farming model localized to the unique context of smallholder farmers. A prototype for implementing a sustainable conservation farming model was developed in collaboration with the smallholder farmers as part of a solution based approach to dealing with the challenges affecting smallholder farmers. / School of Agriculture and Life Sciences / Ph. D.

Tesis por compendio / [ES] El objetivo general de esta Tesis ha sido avanzar en el estudio de los determinan-tes o características que pueden conducir a una colaboración exitosa entre los actores del sistema agroalimentario. Para ello, se analizaron las actividades de cooperación desarrolladas por explotaciones agrícolas, empresas agroalimentarias, instituciones y organizaciones vinculadas a la agroalimentación, que realizan ac-tividades innovadoras en España y América Latina y el Caribe (ALC). La investigación aborda diferentes ámbitos en los que se producen colaboraciones innovadoras. Se trata del ámbito científico, del ámbito de las plataformas multiac-tores y del ámbito de los agricultores y sus instituciones. Se ha estructurado en tres capítulos, correspondientes cada uno a un artículo científico publicado en una revista internacional. Cada uno de ellos aborda un aspecto específico para cumplir el objetivo general que se acaba de señalar. El primer artículo se titula "Collaboration for social innovation in the agri-food system in Latin America and the Caribbean". Este estudio tiene por objeto reali-zar una revisión del estado del conocimiento, utilizando técnicas bibliométricas, de la colaboración innovadora en los sistemas alimentarios y rurales de América Latina y el Caribe (ALC). Concretamente se analizan las actividades de coopera-ción desarrolladas por explotaciones agrícolas y empresas agroindustriales para emprender actividades innovadoras. El segundo artículo tiene como título "Collaboration through EIP-AGRI Opera-tional Groups and their role as innovation intermediaries". A través de una en-cuesta a los grupos operativos y mediante un análisis factorial fue posible identifi-car las funciones que estos grupos desarrollan como intermediarios de innovación desde su propia perspectiva. Este tipo de análisis permite abordar la colaboración entre actores de diferentes ámbitos y sectores para cooperar y aportar soluciones innovadoras a los problemas agrícolas. El tercer artículo, "Drivers of joint cropland management strategies in agri-food cooperatives", estudia la colaboración a través de una estrategia innovadora coor-dinada por las cooperativas. El objetivo principal es avanzar en el conocimiento de las características que presentan las cooperativas que lideran este tipo de iniciati-vas. El estudio se basa principalmente en los datos de una encuesta a cooperati-vas, y se ha utilizado una metodología de Análisis Cualitativo Comparativo (fsQCA). Los resultados confirman el avance en el estudio de la colaboración innovadora en el sector agroalimentario de ALC. Los principales motores de la colaboración en este ámbito son la innovación social, el conocimiento, la gestión sostenible y el capital social. También se observa un creciente interés en el ámbito científico por estudiar los sistemas de colaboración en ALC. Este interés proviene de científicos de diferentes países, lo que ha generado y potenciado la colaboración internacio-nal de los investigadores. Los resultados del segundo artículo se centran en las acciones de colaboración desarrolladas por plataformas multiactor, como lo son los Grupos Operativos. Las acciones desarrolladas por estos grupos pueden enmarcarse en las funciones de los intermediarios de la innovación. Tres funciones emergieron como las más realiza-das: la gestión del proceso de innovación, la articulación de la demanda, y el apo-yo institucional y la intermediación de la innovación. Por último, en el ámbito de los agricultores y sus instituciones, la investigación se centra en los impulsores del éxito de la colaboración. La innovación social y eco-nómica, el tamaño y la propensión a la cooperación son condiciones presentes en las cooperativas que tienen éxito al abordar iniciativas de gestión conjunta de cul / [CA] L'objectiu general d'aquesta Tesi ha estat avançar en l'estudi dels determinants o característiques que poden conduir a una colaboración exitosa entre els actors del sistema agroalimentari. Per a això, s'analitzaren les activitats de cooperación desenvolupades per explotacions agrícolas, empreses agroalimentàries, institucions i organitzacions vinculades a la agroalimentació, que realitzen activitats innovadores a España i Amèrica Llatina i el Carib (ALC). La investigacicó aborda diferents àmbits en els que es produiexen collaboracions innovadores. Es tracta de l'àmbit científic, de l'àmbit de les plataformes multiactors i de l'àmbit dels agricultors i les seues institucions. S'ha estructurat en tres capítols, corresponents cadascun a un article científic publicat en una revista internacional. Cadascun d'ells aborda un aspecte específic per a acomplir l'objectiu general que s'acaba d'assenyalar. El primer artícle es titula "Collaboration for social innovation in the agri-food system in Latin America and the Caribbean". Aquest estudi té com a objectiu realitzar una revisió de l'estat del coneixement, utilitzant tècniques bibliomètriques, de la collaboració innovadora en els sistemes alimentaris i rurals d'Amèrica Llatina i el Carib (ALC). El segon article té com a títol "Collaboration through EIP-AGRI Operational Groups and their role as innovation intermediaries". A través d'una enquesta als grups operatius i mitjançant un anàlisi factorial va ser possible identificar les fun-cions que aquests grups desenvolupen com a intermediaris d'innovació des de la seua pròpia perspectiva. El tercer artícle, "Drivers of joint cropland management strategies in agri-food cooperatives", estudia la collaboració a través d'una estratègia innovadora coordinada per les cooperatives. L'objectiu principal és avançar en el coneixement de les característiques que presenten les cooperatives que lideren aquest tipus d'iniciatives. L'estudi es basa principalment en les dades d'una enquesta a cooperatives, i s'ha utilitzat una metodologia d'Anàlisi Qualitatiu Comparativo (fsQCA). Els resultats confirmen l'avançament en l'estudi de la col laboració innovadora en el sector agroalimentari de ALC. Els principals motors de col·laboració en aquest àmbit són la innovació social, el coneixement, la gestió sotenible i el capital social. També s'observa un creixent interès en l'àmbit científic per estudiar els sistemes de col·laboració en ALC. Aquest interès prové de científics de diferents països, el que ha generat i potenciat la col·laboració internacional dels investigadors. Els resultats del segon article es centren en les accions de col·laboració desenvolupades per plataformes multiactor, com ho són els Grups Operatius. Les accions desenvolupades per aquests grups poden enmarcarse en les funcions dels intermediaris de la innovació. Tres funcions emergeren com les més realitzades: la gestió del procés d'innovació, l'articulació de la demanda, i el suport institucional i la intermediació de la innovació. Per últim, en l'àmbit dels agricultors i les seues institucions, la investigació es centra en els impulsors de l'éxit de la col·laboració. La innovació social i econòmica, el tamany i la propensió a la cooperació són condicionants presents en les cooperatives que tenen èxit a l'abordar iniciatives de gestió conjunta de cultius. A partir dels resultats exposats, podem concloure que la colaboració per a la innovació social e en el sector rural pot ser una forma d'abordar els problemes estructurals en dife-rents àmbits. El coneixement dels principals determinants de col·laboració en el medi rural i agroalimentari a Espanya i ALC permetrà prendre millors decisions en les organitzacions públiques i privades per a promoure accions innovadores de cooperació en els territoris rurals. Futures investigacions poden basar-se en aquests resultats i avançar en altres característiques que determinen l'éxit de la col·laboració innovadora en el sector agroalimentari. / [EN] The overall aim of this thesis is to identify the determinants of or characteristics that can lead to successful collaboration between actors in the agri-food system. To this end, an analysis is conducted of the cooperation activities developed by farms, agribusiness companies, institutions, and agri-food organisations, which undertake innovative actions in Spain and Latin America and the Caribbean (LAC). The research addresses different domains where innovative collaborations occur; namely, the scientific domain, the multi-actor platform domain, and the domain of farmers and their institutions. The resulting thesis is structured in three chapters, corresponding to three scientific articles published in international journals. Each of them deals with a specific aspect, which together fulfil the aforementioned research objective. The first article is entitled "Collaboration for social innovation in the agri-food system in Latin America and the Caribbean." Using bibliometric techniques, this study aims to review the state of the knowledge on innovative collaboration in LAC's food and rural systems. Specifically, it analyses the cooperation by farms and agribusiness firms to undertake innovative activities. The second article is entitled "Collaboration through EIP-AGRI Operational Groups and their role as innovation intermediaries." A survey to operational groups (OG) and a factor analysis are carried out to identify these groups' perspective on their roles as innovation intermediaries. This type of analysis makes it possible to address the collaboration between actors from different fields and sectors aimed at cooperating and providing innovative solutions to agricultural problems. The third article, "Drivers of joint cropland management strategies in agri-food cooperatives," studies collaboration through an innovative strategy coordinated by cooperatives. The main objective is to advance the knowledge of the characteristics of the cooperatives that head up this type of initiative. The study is mainly based on data from a survey of cooperative managers about their views on the main advantages and drivers of joint land management strategies, and the methodology applied is Fuzzy Set Qualitative Comparative Analysis (fsQCA). Findings confirm that progress has been made in the study of innovative collaboration in the LAC agri-food sector. The main drivers of collaboration include social innovation, knowledge, sustainable management, and social capital. In the scientific domain, growing academic interest in collaborative systems in LAC can be seen. Studies have been produced by researchers from different countries, which has generated and enhanced collaboration among international researchers. Results from the second article focus on the collaborative actions developed by multi-actor platforms. These actions can be framed as functions of innovation intermediaries. Three of the most common functions identified are innovation process management, demand articulation, and institutional support and innovation brokering. Finally, in the domain of farmers and their institutions, the research focuses on the drivers of successful collaboration. Social and economic innovation, size, and propensity for cooperation characterise the cooperatives that successfully take on a joint cropland initiative. From the results, we can conclude that collaboration for social innovation in the rural sector can be a way to address structural problems in different domains. Knowledge of the main determinants of collaboration in the rural and agri-food environment in Spain and LAC will help public and private organisations to make better decisions aimed at promoting innovative cooperation actions in rural territories. Future research can build on these results and focus on other characteristics that determine successful innovative collaboration in the agri-food sector. / Gracias al Proyecto “Strengthening innovation policy in the agri-food sector” (RTI2018-093791-B-C22) financed by MCIN/AEI/10.13039/501100011033/ and “ERDF A way to build Europe” / Piñeiro, VA. (2022). Innovative Collaboration in Agri-Food Systems [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/185684 / Compendio

Text in Afrikaans / Summaries in Afrikaans and English / Miljoene mense ervaar voedselonsekerheid en een uit elke 50 hanger mense is woonagtig in Suid­ Afrika. Daar is genoeg voedsel op ons planeet om elke mens van 'n voldoende voorraad voedsel te verseker; dit waarborg egter nie voedselsekuriteit aan almal nie. Dit is die voedselparadoks: ondanks globale surplusproduksie van voedsel, ly miljoene mense wereldwyd aan wanvoeding en honger, maar veral in die ontwikkelende lande. Suid-Afrika is geen uitsondering nie en ten spyte van selfvoorsiening in voedsel, balanseer die voedselgelykstelling nie. Daar bestaan 'n ekstreme gaping tussen die produksie en verbruik van voedsel. Gevolglik is die probleem wat nagevors is in hierdie studie die gebrek aan voedselsekuriteit binne 'n wereldkonteks met voedselsurplusse en hoe dit reflekteer in Suid-Afrika. Teen hierdie agtergrond is daar 'n studie gedoen van die oorsake van voedselonsekerheid en die teoriee en verduidelikings van hongersnood. Die fokus van hierdie navorsingstudie is drieledig van aard. Eerstens fokus dit op 'n konseptuele ondersoek na hanger, armoede, voedselsekuriteit en hongersnood in Afrika. Tweedens is ondersoek ingestel na die oorsake vir die gebrek aan voedselsekuriteit in Afrika. Derdens is daar gefokus op Suid-Afrika en is 'n ondersoek gedoen na die voorkoms van hanger, wanvoeding, armoede en die nasionale konteks van voedselsekuriteit met die doel om vraagstukke daaromheen te identifiseer. Daar is bevind dat voedselsekuriteit bepaal word deur die beskikbaarheid van voedsel (aanbod) en die vermoe van mense om dit te bekom (aanvraag). Dit blyk dat die ontwikkelingsproses, regeringsbeleid, ekologiese omgewing en tegnologie, wetenskap en navorsing 'n direkte invloed het op die voedselsekuriteit van mense, en dat Suid-Afrika nie verskil van ander Afrikalande in hierdie verband nie. Hoewel Suid-Afrika voedselselfvoorsiening bereik het, ly miljoene mense honger weens armoede en die gebrek aan aansprake wat bydra tot 'n gebrek aan voedselsekuriteit. Die studie toon dat die Suid-Afrikaanse regering verskeie beleidsmaatreels in plek het ter bevordering van voedselsekuriteit, maar dat dit nie in die praktyk verwesenlik word nie. / Millions of people in the world experience food insecurity and one out ofevery 50 hungry people lives in South Africa. There is enough food on our planet to assure every person of an adequate supply of food; however, this does not guarantee food security for all. This is the food paradox: despite a global surplus production of food, millions of people experience malnutrition and hunger all over the world, but especially in the developing countries. South Africa is no exception and despite self-sufficiency in food, the food equation is not balanced. An extreme gap exists between the production and consumption of food. Consequently, the problem researched in this study is the lack of food security in a world context with surplus food and how this is reflected in South Africa. Against this background a study was undertaken of the causes of food insecurity and the theories and explanations of famine. The focus of this research study is threefold. Firstly it focuses on a conceptual enquiry intohunger, poverty, food security and famine in Africa. Secondly there is an enquiry into the causes of the lack of food security in Africa. Thirdly it focuses on South Africa and an enquiry is done into the incidence of hunger, malnutrition and poverty, and into the national context of food security with the aim of identifying relevant problems in food security. It was found that food security is determined by the availability of food (supply) and the capability of people to obtain it (demand). It appears that the development process, government policy, ecological environment and technology, science and research directly affect the food security of people, and that South Africa does not differ from other African countries in this regard. Although South Africa has achieved food self-sufficiency, millions of people experience hunger because of poverty and the lack of entitlements. The study shows that the South African government has various policy measures for the promotion of food security in place, but that food security does not materialise in practice. / Development Studies / D.Litt. et Phil. (Ontwikkelingsadministrasie)

Text in Afrikaans / Summaries in Afrikaans and English / Miljoene mense ervaar voedselonsekerheid en een uit elke 50 hanger mense is woonagtig in Suid­ Afrika. Daar is genoeg voedsel op ons planeet om elke mens van 'n voldoende voorraad voedsel te verseker; dit waarborg egter nie voedselsekuriteit aan almal nie. Dit is die voedselparadoks: ondanks globale surplusproduksie van voedsel, ly miljoene mense wereldwyd aan wanvoeding en honger, maar veral in die ontwikkelende lande. Suid-Afrika is geen uitsondering nie en ten spyte van selfvoorsiening in voedsel, balanseer die voedselgelykstelling nie. Daar bestaan 'n ekstreme gaping tussen die produksie en verbruik van voedsel. Gevolglik is die probleem wat nagevors is in hierdie studie die gebrek aan voedselsekuriteit binne 'n wereldkonteks met voedselsurplusse en hoe dit reflekteer in Suid-Afrika. Teen hierdie agtergrond is daar 'n studie gedoen van die oorsake van voedselonsekerheid en die teoriee en verduidelikings van hongersnood. Die fokus van hierdie navorsingstudie is drieledig van aard. Eerstens fokus dit op 'n konseptuele ondersoek na hanger, armoede, voedselsekuriteit en hongersnood in Afrika. Tweedens is ondersoek ingestel na die oorsake vir die gebrek aan voedselsekuriteit in Afrika. Derdens is daar gefokus op Suid-Afrika en is 'n ondersoek gedoen na die voorkoms van hanger, wanvoeding, armoede en die nasionale konteks van voedselsekuriteit met die doel om vraagstukke daaromheen te identifiseer. Daar is bevind dat voedselsekuriteit bepaal word deur die beskikbaarheid van voedsel (aanbod) en die vermoe van mense om dit te bekom (aanvraag). Dit blyk dat die ontwikkelingsproses, regeringsbeleid, ekologiese omgewing en tegnologie, wetenskap en navorsing 'n direkte invloed het op die voedselsekuriteit van mense, en dat Suid-Afrika nie verskil van ander Afrikalande in hierdie verband nie. Hoewel Suid-Afrika voedselselfvoorsiening bereik het, ly miljoene mense honger weens armoede en die gebrek aan aansprake wat bydra tot 'n gebrek aan voedselsekuriteit. Die studie toon dat die Suid-Afrikaanse regering verskeie beleidsmaatreels in plek het ter bevordering van voedselsekuriteit, maar dat dit nie in die praktyk verwesenlik word nie. / Millions of people in the world experience food insecurity and one out ofevery 50 hungry people lives in South Africa. There is enough food on our planet to assure every person of an adequate supply of food; however, this does not guarantee food security for all. This is the food paradox: despite a global surplus production of food, millions of people experience malnutrition and hunger all over the world, but especially in the developing countries. South Africa is no exception and despite self-sufficiency in food, the food equation is not balanced. An extreme gap exists between the production and consumption of food. Consequently, the problem researched in this study is the lack of food security in a world context with surplus food and how this is reflected in South Africa. Against this background a study was undertaken of the causes of food insecurity and the theories and explanations of famine. The focus of this research study is threefold. Firstly it focuses on a conceptual enquiry intohunger, poverty, food security and famine in Africa. Secondly there is an enquiry into the causes of the lack of food security in Africa. Thirdly it focuses on South Africa and an enquiry is done into the incidence of hunger, malnutrition and poverty, and into the national context of food security with the aim of identifying relevant problems in food security. It was found that food security is determined by the availability of food (supply) and the capability of people to obtain it (demand). It appears that the development process, government policy, ecological environment and technology, science and research directly affect the food security of people, and that South Africa does not differ from other African countries in this regard. Although South Africa has achieved food self-sufficiency, millions of people experience hunger because of poverty and the lack of entitlements. The study shows that the South African government has various policy measures for the promotion of food security in place, but that food security does not materialise in practice. / Development Studies / D.Litt. et Phil. (Ontwikkelingsadministrasie)

Thesis (MScConEcol (Conservation Ecology and Entomology))--University of Stellenbosch, 2011. / ENGLISH ABSTRACT: I evaluated the impact of Prosopis invasion and clearing on ecological structure, function and agricultural productivity in heavily grazed Nama Karoo rangeland on two sheep farms near the town of Beaufort West in the Western Cape Province of South Africa. My aims were to (1) determine the effects of invasion and clearing on rangeland vegetation composition, diversity (alien and indigenous species richness) and structure (alien and indigenous species cover), soil vegetation cover (plant canopy and basal cover) and agricultural productivity (grazing capacity), (2) describe the vegetation processes that underlay the invasion and clearing impacts and (3) evaluate the success of clearing in facilitating unaided restoration of ecological structure, function and agricultural productivity in formerly invaded rangeland. I hypothesised that invasion would significantly change rangeland vegetation composition and structure, leading to greater alien species richness and cover and lower indigenous species richness and cover while clearing would lead to lower alien species diversity and cover and greater indigenous species richness and cover. In addition I hypothesized that invasion would reduce rangeland plant canopy and basal cover and grazing capacity while clearing would substantially increase them. Finally I predicted that vegetation composition, alien and indigenous species cover and richness, plant canopy and basal cover and grazing capacity would revert to pre-invasion status and levels within four to six years of clearing. My results suggest that in heavily grazed Nama Karoo rangeland Prosopis invasion (~15 percent canopy cover) and clearing can significantly change rangeland vegetation composition, with invasion leading to greater alien species cover and lower indigenous species richness, while clearing leads to lower alien species richness and cover and greater indigenous species richness and cover. However invasion seems to have no effect on alien species richness and overall indigenous species cover. Clearing appears to facilitate the spontaneous restoration of alien species cover and indigenous species richness within four to six years but not species composition, alien species richness and indigenous species cover. In addition my results also indicate that Prosopis invasion can lower rangeland plant canopy and basal cover and grazing capacity while clearing, even under heavy grazing, can substantially raise them. Clearing however does not seem to facilitate the restoration of rangeland plant canopy and basal cover and grazing capacity to pre-invasion levels within four to six years after clearing. / AFRIKAANSE OPSOMMING: Ek het die impak van Prosopis indringing en verwydering van indringers op ekologiese struktuur, funksie en landbou produktiwiteit in ‘n swaar beweide Nama Karoo gebied op twee skaapplase naby Beaufort-Wes in die Wes-Kaap provinsie van Suid-Afrika geëvalueer. My doelwitte was om (1) te bepaal wat die gevolge van die indringing en verwydering van indringers op die natuurlike plantegroei samestelling, diversiteit (uitheemse en inheemse spesiesrykheid) en struktuur (uitheemse en inheemse spesies bedekking) sal wees, sowel as die effek op plantegroei bedekking (kroon en basalebedekking) en landbou produktiwiteit (weidingkapasiteit), (2) die plantegroei prosesse te beskryf wat onderliggend deur die impakte van indringing en verwydering van indringers veroorsaak word, en (3) die sukses van die verwydering van indringers te evalueer deur die fasilitering van blote restorasie van ekologiese struktuur en funksie en landbou produktiwiteit in voorheen ingedringde gebiede. My hipotese is dat indringing ‘n aansienlike verandering in natuurlike plantegroeisamestelling en struktuur sal veroorsaak, wat sal lei tot groter uitheemse spesiesrykheid en bedekking met minder inheemse spesiesrykheid en bedekking, terwyl die verwydering van indringers sou lei tot minder uitheemse spesie diversiteit en bedekking met 'n groter inheemse spesiesrykheid en bedekking. Verder vermoed ek dat indringing die natuurlike kroon- en basalebedekking en weidingkapasiteit sal verminder, terwyl die verwydering van indringers dit aansienlik sal verhoog. Ten slotte voorspel ek dat plantegroei samestelling, uitheemse en inheemse spesiesbedekking en -rykheid, kroon- en basalebedekking en weidingkapasiteit sou terugkeer na voor-indringing status en vlakke binne vier tot ses jaar na die verwydering van indringers. My resultate daarop dat die indringing van Prosopis (~ 15 persent kroonbedekking) en die verwydering van indringers in swaar beweide Nama Karoo gebiede ‘n aansienlike verandering in die gebied se natuurlike plantegroei samestelling toon, waar indringing gelei het tot groter uitheemse spesiesbedekking en minder inheemse spesiesrykheid, terwyl die verwydering van indringers lei tot minder uitheemse spesiesrykheid en groter inheemse spesiesrykheid en - bedekking. Dit lyk egter of indringing geen effek op uitheemse spesiesrykheid en algehele inheemse spesiesbedekking het nie. Die verwydering van indringers blyk om die spontane herstel van indringerbedekking en inheemse spesiesrykheid binne vier tot ses jaar te fasiliteer, maar nie spesiesamestelling, uitheemse spesiesrykheid of inheemse spesiesbedekking nie. Benewens dui my resultate ook aan dat Prosopis indringing die natuurlike kroon- en basalebedekking sowel as weidingskapasiteit verlaag, terwyl die verwydering van indringers, selfs onder swaar beweiding, die bedekking aansienlik kan verhoog. Verwydering van indringers lyk egter nie asof dit die herstel van die gebied se natuurlike kroon- en basalebedekking en weidingkapasiteit na voor-indringing vlakke toe kan fasiliteer binne vier tot ses jaar na die verwydering van indringers nie.

By following a climate-friendly diet, consumers have the potential to reduce climate change. However, despite the growing awareness of the climate-friendly food options that are available, consumers still choose foods with a high carbon footprint. Following a survey design, this study aimed to determine the extent to which four psychological processes (denial, conflicting goals and aspirations, tokenism, and interpersonal influence) limit consumers’ climate-friendly food choices in South Africa. Data were collected from 151 participants using the Climate-friendly Food Choices Scale and the Psychological Barriers Scale. Regression analysis indicated that conflicting goals and aspirations and denial were the two main psychological barriers to climate-friendly food choices. Overall the barriers were negatively associated with climate-friendly food choices. Gender did not produce a significant effect in the study. Different age groups varied with regards to the extent to which they experienced the psychological barriers, but they did not differ significantly with regards to how often they made climate-friendly food choices. / Psychology / M.A. (Psychology)

Hunger ist nach wie vor ein weit verbreitetes Problem. Nach der jüngsten Schätzung der FAO hungern weltweit noch immer über 800 Mio. Menschen. Prognosen gehen davon aus, dass die Agrarproduktion bis 2050 verdoppelt werden muss, um der steigenden Nachfrage nach Agrarprodukten durch Bevölkerungswachstum, Bioenergieproduktion und sich verändernde Ernährungsgewohnheiten zu begegnen. Unter vielen Möglichkeiten, das Welternährungsproblem zu beschreiben, wird in dieser Dissertation das Konzept der Ernährungssicherheit nach der Definition der FAO herangezogen. Ernährungssicherheit umfasst als wichtigste Aspekte die Verfügbarkeit von Nahrungsmitteln und den ökonomischen Zugang zu Nahrungsmitteln. Nahrungsmittelverfügbarkeit ist in erster Linie von einer global ausreichenden Produktion abhängig, der Zugang zu Nahrung von der Kaufkraft der Haushalte. Die Kaufkraft wird sowohl durch das Einkommen wie auch die Agrarpreise beeinflusst. Die Nahrungsmittelverfügbarkeit kann vor allem durch Ertragssteigerungen erhöht werden. Sollen die Ertragssteigerungen ressourcenschonend erfolgen, muss die Produktivität der Agrarproduktion bezogen auf alle Produktionsfaktoren inkl. Umweltgütern steigen. Nur durch technische und organisatorische Innovation kann dies realisiert werden. Ertragssteigerungen in Entwicklungsländern erhöhen gleichzeitig die Einkommen von potenziell von Hunger Betroffenen. Eine Begrenzung der Nachfrage nach Agrargütern kann global in erster Linie in den Bereichen Bioenergie und Konsum tierischer Produkte erfolgen. Simulationen können helfen, den Einfluss einzelner Faktoren der globalen Nachfrage und des Angebots nach Agrarrohstoffen und -produkten auf die Welternährungslage genauer abzuschätzen. Ein Großteil der Simulationen in der Literatur kommt mithilfe von partiellen oder allgemeinen Gleichgewichtsmodellen zu Aussagen über gehandelte Mengen und Preise oder Wohlfahrtseffekte. In dieser Arbeit wird ein einfaches partielles Gleichgewichtsmodell für den Weltmarkt für Biotreibstoffe, Fleisch und Getreide entwickelt und mit der Methode der FAO zur Schätzung der Zahl der Hungernden gekoppelt. Dies ermöglicht die Abschätzung des Einflusses verschiedener Szenarien auf die Zahl der Hungernden. Für das Referenzjahr 2011 werden Szenarien alternativer Nachfrage nach Fleisch und Biotreibstoffen simuliert, ebenso wie ein Szenario alternativer landwirtschaftlicher Produktivität in der Europäischen Union. Die Schätzungen ergeben einen signifikanten Einfluss der simulierten Nachfrage- und Angebotsverschiebungen. Im Vergleich mit dem Status Quo führt eine Reduktion des Fleischkonsums in den OECD-Ländern um 50% zu einer Reduktion der Zahl der Hungernden um 5%. Eine ii Flächenproduktivität im Getreideanbau in der EU auf dem Niveau von 1980 steigert die Zahl der Hungernden um mehr als 5%, ein Anstieg der Biotreibstoffquote in der OECD auf 10% erhöht die Zahl der Hungernden gar um 10%. Die Durchsetzung geeigneter politischer Maßnahmen zur Verbesserung der Welternährungslage kann durch eine breite öffentliche Unterstützung beschleunigt oder erst ermöglicht werden. Über die öffentliche Meinung zu Fragen der Welternährung in Deutschland existieren bisher keine expliziten Studien. In den Themenbereichen landwirtschaftliche Produktion und Nahrungsmittelkonsum stellt das Thema Welternährung nur einen Aspekt dar, der neben Fragen nach z.B. der Lebensmittelsicherheit und Gesundheit sowie den Auswirkungen von Agrarproduktion auf Landschaft und Umwelt steht. Hier werden Ergebnisse einer Online-Befragung zum Thema Welternährung präsentiert, die im März 2012 mit einer repräsentativen Stichprobe 1.200 deutscher Internetnutzer durchgeführt wurde. Die Befragung beinhaltete im Wesentlichen die Bewertung der Wirkung verschiedener potenzieller Ursachen der weltweiten Unterernährung, sowie Maßnahmen und Entwicklungen zu ihrer Lösung. Die Ergebnisse zeigen, dass das Thema Welthunger in erster Linie mit Merkmalen akuter (Hunger-) Krisen in Verbindung gebracht wird. Die vielversprechendsten Lösungsmaßnahmen sind in den Augen der Befragten der Ausbau des Fairen Handels, Absatzmärkte für Kleinbauern sowie ein Lebensmittelspekulationsverbot. Der intensiven Landwirtschaft in der Welt wie auch in Europa sowie insbesondere der Grünen Gentechnik wird kein Potenzial zur Lösung des Problems zugesprochen. Die Antwortmuster lassen auf die Präsenz eines Halo-Effekts mit einer Übertragung unterstellter negativer Umweltwirkungen auf das Thema Welternährung schließen. Die Grüne Gentechnik ist eine Agrartechnologie, die potenziell zur Angebotsausweitung von Agrarprodukten genauso beitragen kann wie zu einer ressourcenschonenderen Landwirtschaft. Bisherige Anwendungen, hauptsächlich Herbizidtoleranz sowie Insektenresistenz, haben u.a. zu einer Steigerung der effektiven Erträge, einer Einsparung von Insektiziden und einer Steigerung der Profite vor allem im Baumwollanbau beigetragen. Trotz zahlreicher Belege besteht über die Auswirkungen von gentechnisch veränderten (GV) Nutzpflanzen eine anhaltende Kontroverse. Ein Großteil der europäischen Bevölkerung lehnt den Anbau ebenso ab wie einen Verzehr von Produkten aus GV-Pflanzen. Unterstellte sozio-ökonomische Auswirkungen oder Auswirkungen auf die Welternährung sind nur zwei Determinanten von vielen, die zu den Einstellungen zur Grünen Gentechnik beitragen. Zur Konsolidierung des Wissens im Bereich agronomischer sowie sozio-ökonomischer Auswirkungen von GV-Pflanzen wurde eine Meta-Analyse durchgeführt. In wissenschaftlichen Datenbanken wurden iii 147 Primärstudien identifiziert, die für die Meta-Analyse verwendet wurden. Die Analyse beschränkt sich auf gentechnisch veränderte Sojabohnen, Mais und Baumwolle. Als mittlere Effekte des Anbaus von GV-Pflanzen ergibt die Meta-Analyse eine Steigerung des Ertrages um 22%, eine Reduktion der Menge der angewendeten Pflanzenschutzmittel um 37% und eine Steigerung der Profite der Bauern um 68%. Die Höhe der Effekte hängt stark von verschiedenen Faktoren ab. Die Effekte sind für alle drei genannten Variablen in Entwicklungsländern betragsmäßig größer als in Industrieländern. Auch sind die Effekte des Anbaus von GV-Pflanzen bei Erträgen und beim Pflanzenschutzmitteleinsatz betragsmäßig höher für insektenresistente Pflanzen als bei solchen mit Herbizidtoleranz. Aus den in der Arbeit gewonnenen Erkenntnissen kann geschlussfolgert werden, dass sowohl das Nahrungsmittelangebot gesteigert als auch die Nachfrage begrenzt werden sollte. Dies verlangt eine standortangepasste Ausnutzung vorhandener und die Entwicklung neuer Technologien. Auch die Gentechnik kann einen Beitrag leisten. Der Kleinbauernsektor muss vordringlich gefördert werden. Zur Begrenzung der Nachfrage können neben der Politik, welche vor allem die Biotreibstoffnachfrage beeinflussen kann, auch Konsumenten durch Verzicht auf tierische Produkte beitragen. Dies wie auch die Durchführung effektiver politischer Maßnahmen sind auf eine unverzerrte Sichtweise der Öffentlichkeit auf das Thema Welternährung angewiesen. Dazu muss das Thema in Wissenschaftskommunikation und Bildung stärker thematisiert werden.

The South African (SA) Sugar Industry is committed to transformation in land ownership and supports the SA government's target to transfer 30% of freehold sugarcane land to previously disadvantaged individuals (PDls) by 2014 via the land market under the willing buyer/willing seller principle. The medium-scale farmer scheme for emerging commercial sugarcane farmers, which was introduced in 1996 to help redistribute commercial sugarcane farmland to PDIs is an important component of the SA Sugar Industry's land reform strategy. The average financial performance of emerging commercial farmers (now called New Freehold Growers or NFGs) in the SA Sugar Industry was below that of large-scale commercial farmers during 1997-2007 (real average annual net return per hectare of R390 versus R3 075 in 2007 Rand). Given that this trend raises concerns about the long-term viability of NFGs, the first aim of this study is to identify factors that distinguish between successful, less successful and unsuccessful NFGs using a stratified random sample of 96 NFGs in KwaZulu-Natal (KZN) surveyed during July-November 2008. These NFGs were classified according to whether their mortgage loans were current (successful), in arrears (less successful) or in the process of legal action (unsuccessful). Student t-tests indicate that successful NFGs, on average, had statistically significantly more experience in farming sugarcane, larger farm sizes (proxied by average annual gross farm income), greater solvency and liquidity, and larger areas annually replanted to sugarcane than the less successful and unsuccessful NFGs. The successful NFGs also placed relatively more emphasis on computerized record keeping systems that can save time in conducting production and financial analyses to improve farm profitability. They also on average tended to make more use of their own financial record keeping system in addition to the services of bookkeepers, and used more risk management strategies than unsuccessful NFGs, in particular having off-farm investments and keeping cash and credit reserves. A multinomial logit model of factors affecting the sample NFGs' mortgage loan repayment status estimated that extension contact, production and financial risk management capacity, farm financial and production management ability, own record keeping and cash management, and having more sugarcane farm experience to operate larger farm sizes were key determinants of successful loan repayment. The results suggest that policy makers can promote the viability of NFGs by (1) encouraging them to manage solvency and liquidity levels and implement replanting schedules in line with industry norms (e.g. debt:asset ratio of 0.5 or lower, and the replanting of 10% of the area under cane (AUC) per annum); and (2) facilitate the transfer of adequate size farms (expected annual gross farm income can meet annual loan repayments) in commercial transactions or transactions funded via government grants to farmers who have the relevant farming experience. New Freehold Growers are also encouraged to build business relationships with industry support staff, implement good record keeping practices, and develop strategies to manage risk (e.g. off-farm investment and holding cash and credit reserves). The second aim of this study was to document the NFGs' perceptions of the scheme and industry role players in order to identify what aspects could be improved for both current and future farmers. The results suggest that most sample respondents (84%) can identify with, or have experienced the relatively low current returns (cash flow problems) usually associated with the early years after land purchase, while about 60% of the sample NFGs would have preferred to first lease their land before buying. Future NFGs, or the beneficiaries of other land reform initiatives, must be informed that an investment in land has low current returns relative to capital growth and that the annual profit from farming is low relative to the land value. The possibility of leasing could also be considered for future land transfers to NFGs or other land reform beneficiaries to help manage the liquidity constraints associated with land purchase. Ninety-nine percent of the sample NFGs felt that it was important for new farmers to have a mentor. Post-settlement support thus needs attention from industry role players, and a sustainable mentorship programme could, in part, meet this need. / Thesis (M.Sc.Agric.)-University of KwaZulu-Natal, Pietermaritzburg, 2009.

No description available.

South Africa and other developing countries are grappling with high levels of poverty as a result of slow to negligible rural development. Irrigation development is one essential component that can be used to address the challenges faced by smallholder farmers in rural areas. In the President‟s “State of the Nation Address” in 2011, the President of South Africa outlined measures to reduce hunger and poverty in communal areas through enhanced government‟s expenditures in rural infrastructure developments, especially for such amenities as irrigation and roads, with a view to promoting food security. The broad objective of this study is to assess livelihood strategies and opportunities with regard to farming in Qamata area of Intsika Yethu Local Municipality. The stratified random sampling method was applied in order to choose a sample of 70 household that were interviewed by means of semi-structured questionnaires. Out of these, 53 belonged to the irrigation project and 17 farmers were non-irrigation farmers. The results show that women play an active role in agriculture. The Multiple Regression model was used to assess the relative importance of different livelihood strategies adopted by both irrigation and non-irrigation farmers in improving household food security and welfare in Qamata. More specifically, the study assessed the impact of different livelihood strategies on production of butternut, goats, maize and poultry (Chicken) in Qamata. The results show increased agricultural production, crop diversification and higher incomes from irrigation farming as compared to dry land farming. Irrigation farming has enabled many households to diversify their sources of income and therefore include activities and enterprises that contribute to enhanced household welfare. The study showed that household size is crucial in crop production, followed by gender of the household head. The government and research institutes need to come up with programmes to train people on ways to produce crop and livestock products more efficiently.