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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Orma livelihoods in Tana River district, Kenya : a study of constraints, adaptation and innovation

Pattison, James Lee January 2011 (has links)
This study focuses on the constraints, adaptations and innovations in the livelihoods of Orma pastoralists. The fieldwork took place with families around Tiltila, Waldena and Kalalani over a period of 9 months in 2007/08. The position of pastoralist peoples in East Africa is characterised by social, political and economic marginalisation, weak land tenure, and declining per capita livestock holdings, while their shrinking grazing lands are widely regarded to be on the front line of climate change, both in terms of climate impacts and biofuel/agribusiness land pressure. The dearth of good quality data on pastoralist populations and livelihoods is widely cited as one of the fundamental barriers to improving the effectiveness of development support in the drylands. This study seeks to address these knowledge gaps for Orma pastoralists, while contributing to the body of theory on pastoralist livelihood dynamics. Data on the effects of wealth, education and food aid on household mobility were analysed using a theory of asset threshold dynamics. An adapted typology of livelihood strategies was developed to interpret and structure the data. Using child mortality as a proxy for respondent health, the impacts of wealth and mobility status on families’ health were explored. In the context of an almost total lack of data on community redistribution of food aid, both for the Orma and for East African pastoralists more generally, the study provides empirical data on de facto community food aid allocation patterns. The study also examines a controversial large-scale expropriation of land in Tana River (subsidised under the Kyoto Protocol’s Clean Development Mechanism) which will undermine the capacity of Orma pastoralists and other minority groups, to adapt to increased and more extreme environmental variability. In an environment in which enrolment in formal education is very low (particularly for girls), the study found that community nursery schools represent a relatively recent (and thus far undocumented) innovation organised and funded by groups of parents. The data demonstrates unprecedented levels of female enrolment despite cost constraints faced by least wealthy families. It is therefore suggested that incorporation of the community nursery model into the basic literacy element of the proposed national distance learning strategy, offers significant potential for addressing ‘Education For All’ in Kenya’s drylands.
2

Sustainability views of Adaptation measures to the potential impacts due to climate change in the Coastal zone of Bangladesh

Karim, Rezaul January 2010 (has links)
The thesis work has studied mainly autonomous adaptation measures used by local communities against natural hazards. In course of time the climate change will make these hazards frequent and severe challenging peoples capacity to cope with them. The work is conducted as a case study in nine coastal agro-ecological zones of Bangladesh. Coastal zones have socio-economical potential but are at the same time vulnerable to destructive effects of climate change in agriculture, human settlements, health, ecosystem and security. In collaboration with the Department of Environmental sciences in Jahangirnagar University, Bangladesh, adaptation measures practiced at study areas have been gathered and then evaluated using a rated set of eleven criteria which has been derived from principles of sustainable adaptation. As a result of this study several adaptation measures show high sustainability, some medium but most of them with a low sustainability in terms of effectiveness, efficiency and implementation ability. The conclusion is to enhance local adaptive capacity in terms of its hazards context and to modify adaptation measures to be more sustainable.
3

Framgångsfaktorer och barriärer vid integrering av klimatanpassning i  kommunal RSA : En undersökning av Värmlands småkommuner / Success factors and barriers for the integration of adaptation into local RVA : An examination of the municipalities in Värmland

Davidsson, Åsa January 2016 (has links)
Att klimatet förändras är konstaterat, skulle utsläppen av växthusgaser kraftigt minskas kan de påbörjade klimatförändringarna ändå inte helt förhindras. Förändringarna innebär att extremväder kommer inträffa oftare men med geografiska skillnader. Till seklets slut väntas i Värmland exempelvis nuvarande tioårsregn istället inträffa var femte år. Vänern kommer i och med detta utgöra en av de största översvämningsriskerna. Hur dessa förändringar påverkar samhället varierar beroende på samhällets konstruktion och sårbarheter. Anpassning till de nya förutsättningarna är nödvändig, och ett stort ansvar vilar på våra kommuner i och med den ansvarsfördelning som finns i Sverige. Möjligheterna att genomföra anpassningsåtgärder varierar, liksom hur långt arbetet har kommit. Ett sätt att integrera klimatanpassning i riskhanteringen för att minska samhällets sårbarhet, är att kommunerna använder sig av sina risk-och sårbarhetsanalyser (RSA). Detta är dock förenat med en del barriärer. Intervju har genomförts med elva Värmländska kommuner. Därtill har genomgång gjorts av samtliga kommunala RSA 2015-2018 för att identifiera framgångsfaktorer och barriärer med integreringen. Dessutom utreds om kommunerna efterfrågar hjälpmedel för detta arbete.  Resultatet visade att sex kommuner i varierande omfattning inkluderat klimatanpassning i RSA, vilket är en tydlig ökning jämfört med tidigare års RSA. Dessutom kan både framgångsfaktorer, barriärer och önskemål för fortsatt utvecklande av detta arbetssätt påvisas. Denna undersökning kan visa på att ett samband finns mellan om klimatanpassning i RSA skett och om kommunen drabbats av naturolycka. Dessutom kan samverkan mellan kommunerna vid upprättande leda till att kommuner som inte tidigare drabbats, ändå klimatanpassar RSA genom att samverka med de som har det. Som hjälp vid det fortsatta arbetet med RSA önskas av samtliga intervjuade kommuner ett utökat regionalt samarbete samt någon form av guide eller riktlinjer från exempelvis länsstyrelsen. / The climate change is confirmed. Even if greenhouse gas emissions were greatly reduced, it would still not be sufficient to completely prevent the ongoing climate change. This change means that extreme weather will occur more frequently, but with geographical differences. Moving toward the end of the century, in Värmland it is expected that the current ten-year rain cycle will change to a cycle spanning five years. Vänern will be one of the largest flood risks. How these changes affect society varies according to social structure and vulnerabilities. Adapting to the new circumstances is necessary, and great responsibility rests on our municipalities following the distribution of responsibility that exists for municipalities in Sweden. The conditions for implementing adaptation measures vary, as well as how far the work has come. One way to integrate climate adaptation of risk management to reduce the vulnerability of society, is that municipalities make use of their risk and vulnerability analysis (RVA). This, however, is associated with some barriers. Interviews were conducted with eleven municipalities in Värmland and as well as a briefing of all municipal RVA from 2015 to 2018 to identify the success factors and barriers to integration. Also investigated is whether the municipalities are requesting tools for this work. The results showed that six municipalities, though in varying degrees, have included climate adaptation in RSA. A clear increase compared to the previous year's RSA. Additionally, success factors, barriers and requests for further development of this approach appear. This investigation may show that a relationship exists between climate adaptation in RVA occurred and if the municipality is affected by a natural disaster. Also shown is that cooperation between municipalities in the preparation can lead to municipalities that have not previously suffered from a hazard, choose to climate adapt RVA by interacting with those who have. To aid in further work with RSA, an extended regional cooperation is desired by all interviewed municipalities as well as any kind of guide or guidelines, for example, on a regional level.
4

Storm Water Management with BlueGreen Infrastructure in Urban Planning : A case-study in Krokom, Sweden

Suleiko Allansson, Lena January 2023 (has links)
As changing climate and growing urban populations present new challenges for managing both the quantity and the quality of storm waterin cities, nature-based solutions such as blue-green infrastructure arebecoming widely considered as an alternative to grey infrastructure. The benefits, above providing storm water management at a lower cost, are increased ecosystem services. One of such solutions is SuDS: a collective name for drainage systems thatare designed to manage the quantity of runoff, protect or enhance water quality, increase amenity and foster biodiversity. In Sweden there is a lack of research on applying nature-based solutions in planning urban water management. This case study aims to contribute with knowledge of how working with blue-green infrastructure in a systematic way effects the outcome of urban planning and what ecosystem gains can be expected. ASuDS design was created following the SuDS guidelines for a greenfield residential area in the city of Krokom. The design was then compared with the original proposal by the municipality.The results show that the systematic method that SuDS brings to watermanagement planning leads to a different design of a residence area than what traditional methods produce. At the same time the ability to handle extreme rain event is at least as robust, with the ability of the system to generate other ecosystem services and further strengthen the resilience of the area. Further research is needed for a more detailed analysis of the generated ecosystem services. / <p>2023-06-02</p>
5

Planning support for reducing risks related to flooding : A case study of flood response in Kista residential area and Igelbäcken stream, Sweden

Lundgren, Kajsa January 2017 (has links)
Flooding has been identified as the most widespread and most frequently occurring natural disaster by the United Nation. Sweden is no exception when it comes to being affected by flooding, and several major flood events have been seen in recent years. The Swedish National Board of Building, Housing and Planning published a report on climate adaption in 2010 where they stated that Sweden is missing over all strategies and goals meet the demands of more frequent and intense rain events. Present thesis aimed to develop planning support for integration of hydrological perspectives in urban planning to manage water related risks such as flooding and high water levels. This was done through hydrodynamic modelling in MIKE FLOOD, developed by the DHI, where a 1D stream model was coupled with a 2D free-surface flow model. The model was run for three different scenarios reflecting current conditions (Scenario 1), climate change (Scenario 2) and land use change (Scenario 3). The study area chosen for present study was Kista residential area, located northwest of Stockholm, and part of Igelbäcken stream that runs by Kista. Igelbäcken stream was represented by a 1D stream model in the software MIKE 11 provided by DHI and Järfälla municipality, whereas a 2D model in MIKE 21 for Kista and the stream surroundings was setup throughout the project. Data was provided by Stockholm Vatten och Avfall and processed in ArcMap before it could be used in the modelling. The MIKE 21 model required data regarding topography, land use, and precipitation. A 100-year flood, based on a series of designed rain events with various duration and intensity, was used as precipitation input to replicated a hypothetical major rain event. Flooding in Scenario 2 was more extensive than flooding in Scenario 1, which was expected since Scenario 2 was based on a 100-year flood with a climate change factor of 1.25 and projection for year 2100. Scenario 3, which represented a “worst case” scenario with all planned exploitation of Kista identified as impermeable surface, forced the water to move further down in the topography compared with Scenario 1. Several buildings were more or less surrounded by at least 0.3 meter of water in Scenario 3. Water levels in Igelbäcken stream were strongly affected by the rain events and showed an increase of 0.4, 0.9, and 0.4 meter for the three scenarios at the end of the simulations which lasted for six hours. In conclusion, findings of present study show larger flooding extent that previously performed studies in the area and they reflect fast response in Igelbäcken stream with respect to increased water level. Indicating that effects from major rain events should not be underestimated. Furthermore, the findings could prove useful for identification of major runoff pathways and identification of suitable locations for multifunctional with respect to infiltration and retardation, if available at an early stage in the planning process. Thus, this type of study could prove useful for integration of hydrology in the urban planning process. / Översvämningar har identifierats som världens mest utspridda och vanligast förekommande naturkatastroftyp av FN. Sverige är inget undantag när det kommer till påverkas av översvämningar, under de senaste åren har flera stora översvämningar förekommit i landet. Boverket publicerade 2010 en rapport gällande Sveriges hantering av klimatanpassning. Slutsatsen av denna rapport var att övergripande strategier och mål för klimatanpassning saknas när det gäller hantering av kraftiga skyfall och att bättring krävs för en hållbar samhällsutveckling. Denna studie syftade till att utveckla planeringsstöd för integrering av ett hydrologiskt perspektiv i urban planering för att hantera vattenrelaterade risker så som översvämning och höga vattennivåer. Detta gjordes genom hydrodynamiks modellering i mjukvaran MIKE FLOOD, utvecklad av DHI, där en 1D vattendragsmodell kopplades till en 2D ytavrinningsmodell. Modellen kördes för tre scenarion: nuläget (Scenario 1), klimatförändring (Scenario 2) och förändrad markanvändning (Scenario 3). Förorten Kista, belägen nordväst om Stockholm, och den del av Igelbäcken som passerar Kista valdes som studieområde. Igelbäcken representerades av en 1D vattendragsmodell, MIKE 11, som tillhandahölls av DHI, medan en 2D ytavrinningsmodell i MIKE 21 sattes upp för Kista och Igelbäckens omgivning under projektets gång. Data tillhandahölls av Stockholm Vatten och Avfall och bearbetades i ArcMap innan den kunde användas i modelleringen. MIKE 21 modellen baserades på data rörande topografi, markanvändning och nederbörd. Ett 100-års regn, baserat på en serie möjliga 100-års regn med varierande intensitet och varaktighet, användes som nederbördsdata för att efterlikna ett hypotetiskt kraftigt skyfall. Översvämning i Scenario 2 hade en större utbredning än Scenario 1, vilket var väntat då Scenario 2 baserades på ett 100-års regn med en klimatförändringfaktor på 1.25 och en klimatprojektion för år 2100. Scenario 3, vilket representerade ett ”värsta möjliga” scenario med all planerad exploatering i Kista definierad som icke genomsläpplig yta, tvingade vatten som ansamlats på ytan att röra sig längre ner i topografin eller fångade det på nya ställen i studieområdet jämfört med Scenario 1. Ett flertal byggnader var till stor del omringade av ett vattendjup på åtminstone 0.3 meter i Scenario 3. Vattennivåer i Igelbäcken var inledningsvis väldigt låga, men påvisade sedan en ökning av 0.4, 0.9 samt 0.4 meter i respektive scenario vid simuleringens slut (vilken varade i sex timmar). Sammanfattningsvis påvisade studien större översvämningsspridning än tidigare genomförd översvämningsmodellering i området. Vidare visade resultaten en snabb respons i Igelbäcken med avseende på vattennivåförändringar vid simuleringens slut. Detta indikerar att påverkan från kraftiga skyfall inte bör underskattas. Resultaten ses som användbara i ett tidigt stadie av planeringsprocessen för identifiering av viktiga ytavrinningsvägar i landskapet samt för lokalisering av lämpliga ytor för etablering av multifunktionella ytor, till exempel parker, med avseende på infiltration och fördröjning av dagvatten. Denna typ av studie kan därmed ses som användbar för integration av ett hydrologiskt perspektiv i den urbana planeringsprocessen.
6

Klimatanpassning - En komplex verklighet : En studie om hantering och samordning av arbetet med stigande havsnivåer och kusterosion i fyra skånska kustkommuner / Climate adaption - A complex reality : A study of the management and coordination of the work with rising sea levels and coastal erosion in four coastal municipalities in Skåne

Ivarsson, Carolina, Tullberg, Louise January 2023 (has links)
Vårt samhälle står inför stora utmaningar när det kommer till klimatförändringarna. Inte minst i att anpassa samhället för att hantera konsekvenser som stigande havsnivåer och kusterosion. Denna studie kommer därför att undersöka hur arbetet kring stigande havsnivåer och kusterosion hanteras och samordnas i kommunal och regional fysisk planering. Den kommer också att undersöka vad nationella och regionala planeringsdokument har för betydelse för kustkommuners implementering av åtgärder i sin översiktsplanering. Syftet med studien är att undersöka fyra skånska kustkommuners arbete med frågan. I studien används teorier kring governance (nätverksstyrning), New Public Management, implementeringsteori, wicked problems och ett analysverktyg om skyddsstrategier: reträtt, försvar och attack. Uppsatsen har en kvalitativ ansats där fallstudier använts som metodologi, databassökningar med nyckelord samt dokumentstudie med närläsning som metod. Det empiriska material som studerats är kommunernas översiktsplaner och regionala planeringsdokument. Det har också skett en närläsning av nationella planeringsdokument som en viktig bakgrund i studien. Under uppsatsen har vi även haft kontakt med två tjänstepersoner inom kommunal förvaltning. Genom sin expertkunskap har de bidragit med vägledning i hur planeringsvärlden fungerar. Studien har visat på både likheter och skillnader i kommunernas strategier för upprättande av kustskydd. Länsstyrelsen Skåne anser dock att samtliga kommuner är för vaga i sin vägledning. Av både de nationella planeringsdokumenten och det empiriska materialet framgår det att flera aktörer anser att ansvaret för klimatfrågan är otydligt. Den nationella nivån kritiseras också för att ge för vaga riktlinjer. Nätverksstyrningen och lagstiftningen är två orsaker som ofta lyfts fram. Genom det empiriska materialet kan vi se att otydliga riktlinjer leder till problematik när länsstyrelsen och kommunerna gör olika bedömningar kring implementering av kustskydd. Vi har kunnat konstatera att det ofta sker en krock på grund av det kommunala planmonopolet. Kommunerna och i vissa fall även länsstyrelserna efterfrågar tydligare statlig styrning. Vår bedömning är att det kan finnas en fördel med att den statliga styrningen i klimatanpassningsfrågan förtydligas. Antingen genom tydligare lagstiftning eller bättre samordning av en myndighet. Vi bedömer också att kommunerna behöver låta klimatanpassningsfrågan ta större utrymme i översiktsplaneringen. / Our society is facing major challenges when it comes to dealing with climate change, not least in adapting society to deal with consequences such as rising sea levels and coastal erosion. This study will examine how the work on rising sea levels and coastal erosion is managed and coordinated in municipal and regional spatial planning. It will also examine how national and regional planning documents affect the implementation of coastal protection in the municipalities' comprehensive planning. The purpose of the study is to investigate four coastal municipalities in Skåne. The study uses theories of governance, New Public Management, implementation theory, wicked problems and an analysis tool on protection strategies: retreat, defense and attack. The thesis has a qualitative approach where case studies are used as a methodology, data base researches and document study with close reading as a method. The empirical material studied is the municipalities' comprehensive plans and regional planning documents. A close reading of national planning documents has also been used as an important background to the study. During the thesis, we have also had contact with two experts in municipal administration. Through their expertise, they have contributed with knowledge of how the planning world is functioning. The study has shown both similarities and differences between the municipalities and their strategies for establishing coastal protection. However, the County Administrative Board of Skåne believes that all municipalities are too vague in their guidance. Both the close reading of the national planning documents and the empirical material show that several actors consider the responsibility for the climate issue to be unclear. The national level is also often criticized for providing unclear guidelines. Governance and legislation are often identified as causes. In the empirical material, we can see that unclear guidelines lead to problems when the county administrative boards and the municipalities make different assessments regarding the implementation of coastal protection. We have found that there is often a clash due to the Swedish municipal planning monopoly. The municipalities, and in some cases also the county administrative boards, demand clearer state control. Our assessment is that there may be an advantage in clarifying the governmental management of the climate change adaptation issue, either through clearer legislation or better coordination by an authority. We also believe that municipalities have to prioritize the climate change adaptation issue better in their comprehensive planning.

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