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Rwanda’s large rural population, with its high density and growth, have increasing demands for fruit and fuel wood. Currently, Rwanda even has an estimated deficit of 9.5 million m³ wood and fruit consumption is estimated to increase 20% between 2017 and 2024 (MoE, 2018; GoR, 2018). These demands result in overexploitation of the land, which lead to degraded lands and to low agricultural productivity (REMA, 2015). However, AF is identified as the single most important restoration opportunity for degraded lands with low productivity, especially in Eastern Rwanda (MoE, 2018). Despite Rwanda’s efforts in the promotion of AF and its proven benefits, there still exists an AF adoption gap in the Eastern Province. In this study, a discrete choice experiment (DCE) in Eastern Rwanda is performed to unravel the small-scale farmers’ preference on AF systems. A DCE is a stated preference method, in this one, the farmers have to choose between adopting one of two AF systems with differing characteristics or not adopting AF. The farmers in this region live on degraded lands and have high land pressures, making this region an ideal study area for the research. Furthermore, this study aims at understanding farmer and plot characteristics that may influence willingness to adopt AF in the region. This led to eight attributes. For the experimental a Bayesian D-optimal fractional factorial design was made using JMP. This final DCE was imbedded in a HH survey, in which the household (HH), HH head and plot characteristics too were questioned, as well as their AF knowledge and the most and least important agroforestry characteristics according to the respondents. The DCE was executed for the respondents’ specific plots, with a maximum of three plots. Later the data was analyzed both on HH as plot level, with sample sizes of 248 HHs and 543 plots. For the analysis a conditional logit, mixed logit and latent class model was performed. Out of these analyses it was found that the farmers want to adopt agroforestry, with in general and plot-specific preferences of high crop yield, high number of total trees, increasing fraction of fruit trees, increasing extension officer visits and tree’s with deep roots systems (R1). The farmers also show a dislike for more labor, further tree nurseries and increasing seedling prices (R1). That both the general and plot-specific farmers’ preferences are heterogenic (R2) and that the farmers can be divided into two latent classes based on their agroforestry preferences. Understanding farmers’ preferences allows us to develop a policy frame and assistance scheme that is tailored to the farmers’ needs. This will ensure higher adoption and tree survival rates when an AF project is developed in the region. This DCE is unique since it focusses on the production practices and takes the farmers’ AF preferences of this region into account. The decreasing maize yield, lack of assistance and seedling costs are found to be the major constraints for adopting agroforestry. Further it is recommended to the policy makers to develop and refine the AF assistance and land law based on the local farmers’ needs, as well as reducing the negative effects of decreasing crop yield after adopting AF for the individual farmer. By creating incentives, increasing maize hybrids and increasing the market access for the local farmers.
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To reduce vulnerability towards the impacts of climate change, societies have to accelerate climate change adaptation (CCA). The recent ‘Adaptation Gap Report’ (UNEP, 2021) reveals that current efforts are not sufficient, and that capacity building for and awareness-raising of adaptation issues needs to be enhanced. Education can play a vital role in learning societies about the risks related to climate change and how to deal with them on a local, regional, and global level. Education about CCA still has unlocked potential to contribute to speed up CCA but teaching about this topic comes with several challenges for teachers. Therefore, this master’s thesis studies how CCA can be integrated into the curriculum of secondary education in Flanders and what teachers' needs are for digital teaching materials about CCA. Moreover, it contributes to the development of teaching material on CCA and shows how a digital tool can contribute to capacity building for CCA. To respond to this question, a needs assessment was carried out with mainly geography teachers in secondary schools. This needs assessment consists of a survey and two focus groups underpinned by the TPACK framework providing a structure to analyze the technological, pedagogical, and content needs of the teachers. Based on the results of the needs assessment an online teaching and learning tool was developed. The format of this tool is a WebQuest in which students have to come up with a climate adaptation plan for their school or town supported by five modules introducing them to climate change adaptation through several inquiry-based activities. This WebQuest is designed based on the concept of powerful knowledge, meaning that it integrates different kinds of knowledge to empower students. Finally, the WebQuest has been partly implemented in two classrooms and has been evaluated by teachers. The needs assessment shows that teachers participating in this study are already engaged in the topic of climate change and most of them already address adaptation issues. In general, they believe that CCA is a necessary topic to teach about because of its relevance and link with climate action. The results of the needs assessment reveal the specific needs of teachers for future teaching materials about CCA. Teaching materials on the topic of CCA should foremost include a local and relevant topic for the students, focus on knowledge and activating methods and ideally consist of blended learning. Based on the teachers’ experiences and needs, three barriers and three levers for CCA integration in secondary schools have been identified. The main challenges to enhance the integration of CCA in the classroom are the persistent misconceptions about climate change, the complexity of climate change and CCA, and the insufficient support for teachers to successfully educate students about CCA. Nonetheless, the teachers’ insights also revealed three important factors that can help to make CCA education more powerful and better integrate it into the curriculum. These factors include the link with local problem-solving and a focus on what can be done, actively engaging the students in the classes, and a focus on knowledge while also applying a critical perspective. In sum, this research reveals that teaching about climate adaptation is a complex task, but one that has the potential to support capacity building for more resilient societies when taking into account some key barriers and levers.
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Due to the rapid urbanization of cities and climate change, authorities face the big challenges of expanding cities in a sustainable way and to meet in the needs of further generations. Ha Tinh (Vietnam) is an example of those cities and is used in this thesis as a test area where research is conducted to improve the comfort. Due to the warm and humid climate in central Vietnam, it is a huge task to keep the air temperatures in and around the buildings under control during the summer period. The results can be applicable to many other cities in Vietnam. The problems have been identified by means of a survey and measurements (temperature and relative humidity) in and around the houses in different neighborhoods. The mapping of the situation has been followed up by a search for possible solutions which could contribute to a more pleasant microclimate. In order to check the influence of amongst other materials, configurations, weather parameters,… I acquainted myself with and made use of the ENVI-met software where simulations on neighborhood level have been completed. The results from the surveys show mutual differences between the different neighborhoods. Based on this survey, the comfort feeling can be compared with numerical results. The results of the ENVI-met simulations generally correspond well to the reality. The sensitivity analysis supplied good results such as the correct approach to a shed. At building level, the accuracy of the results on short term (24 h) is questionable when focusing on the indoor air temperature. Overall, it is apparent from the results that the location, where the measurements are performed, determines the influence of the changes in the area. All proposed changes (urban green, urban blue, street material, roof material, height of the houses) had a positive effect on the air temperature in the area or in the buildings. The parameter that is hard to estimated, the soil wetness, had an influence on the air temperature due to the evaporation of water.
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This study is based in the Eastern province of Rwanda. The Eastern Province suffers from deforestation, illegal logging and high population density that puts the forests and the livelihoods of the people at risk. People depend on forests and shrublands for collecting fire and fuelwood and this generally comes at the cost of reducing forest cover and wood availability. The supply of wood over the last couple of years has decreased as the demand has increased without sufficient increase in the forested area. This demand and supply gap has only increased in the last decade, pointing out that immediate policy interventions are needed. The reason for the decrease in supply are several, however the two major factors that are responsible for it are the; the population increase and climate change. Climate change interferes with the productivity of forests. Trees, especially in dry tropical areas can be very sensitive to climate change as they already operate on their maximum limit. An increase in temperature and a decrease in rainfall in already dry and arid forests can lower the productivity of many tropical species which can affect the supply of firewood in these areas. This study tries to model the change in growth rate of three tropical species with respect to changing climate and tries to deduce which environmental factors have to most effect of their growth rates .
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UNESCO Biosphere Reserves are internationally recognized locations with high ecological value, designated under the intergovernmental Man and the Biosphere Programme (MAB). The aim is, to provide a place for identifying and implementing sustainable development strategies that consider a broader socio-ecological perspective. Biosphere have a zonation scheme, that considers different levels of conservation or development. The Kogelberg Biosphere in the Western Cape district of South Africa was not only the first biosphere, but includes also an area with the highest floral diversity in the world, the so called Fynbos. Fynbos is part of the Cape Floral Kingdom and highly endangered: land transformation, alien invasion and climate change. Alien species were until recently widely used for the production of timber in the area, that naturally has no tree cover but is a low shrub vegetation that requires regular fires to sustain. The decision to remove the plantations in order to restore certain deteriorated ecosystem services such as water not only left large portions of the landscape unmanaged, also unemployment and economic stress rose due to the increased unemployment. In support of the UNESCO‘s MAB scientific approach in finding solutions, this study aims at providing a guideline of suitable land-use options specifically for the former plantation land. The literature and activities already provide a broad range of experience and findings that will be synthesized and fit to the conditions on site, but will be further supplemented by narratives from stakeholders on site and spatial analysis. Interviews show, that a significant amount of potential lies in the people on site, their interest and capacities should me considered more during planning. There are also a few special aspects such as fire risk and alien invasion management that need to be paid attention to, especially in order to broaden the benefits and reducing costs. The spatial analysis provides an insight of where land-use options should be conducted, mostly in proximity to urban areas and heavily degraded land. The highest benefits on socio-economic and ecological perspective is tourism, due to its low impact on environment and provision of skilled employment. Business too profit from tourism development. Nevertheless, agriculture can, if applied as small-scaled organic agriculture with local marketing, contribute to an important part to enhanced livelihoods and to well-being. Implementing innovative strategies, it may contribute to a shift in paradigm towards a more environmental friendly land-use. Authorities are the biggest supplier of employment and vital to buffer extreme poverty, yet involving the private sector for financing activities through different schemes such as investing in ecological infrastructure and payment for ecosystem services may have a great potential. Their application requires approaching stakeholders and finding viable solutions. In most of the suggested options, the bottom up approach in where actors meet at eye level and cooperation among stakeholders and institutions is absolutely vital for long term success. These aspects support the build-up of resilience and increases the people’s capacity to develop and handle shocks, which in turn benefits the environment.
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Among other major impacts, cities have a strong influence on the energy and water balanceof the environment where they are placed. In particular, this master’s thesis pays attention to the so-called Urban Heat Island (UHI) effect, that increases the temperature with respect to non-urbanized areas, and the flooding risk, that is increased because of the replacement of pervious surfaces by impervious materials. The study of these problems have been tackled from the perspective of remote sensing. The aim of this master’s thesis is to investigate the use of very high resolution (VHR)satellite imagery and LiDAR data in the classification of Local Climate Zones (LCZs), using an OBIA approach. LCZs is a recently established concept that defines structural types with characteristic thermal regimes. Moreover, this framework can be used to link these structures with their impact on the water balance, by means of the impervious and pervious surface fractions. Despite LCZs is an increasingly applied scheme, the use of a combination of VHR and LiDAR data in a classification of LCZs has not been investigated in detail so far. This work aims to contribute to closing that gap, studying an area that encompass the city of Ha Tinh, in Vietnam. Ha Tinh is currently undergoing a rapid process of urbanization and suffers from recurrent flooding events. In summary, we developed a new methodology for the classification of LCZs, that uses a combination of VHR satellite imagery and LiDAR data, and an OBIA approach. This methodology proved to give good results in a study area of 6km2 covering Ha Tinh city and surroundings. The applications of the products derived in this work are multiple. The land cover map can be used as an input in the hydrological models that are being developed in Ha Tinh. The LCZs map give important information on the UHI effect and amount of impervious cover. This insight can be used to build the capacity of urban planners taking informed decisions about the best mitigation strategies, for example the installation of green roofs, cool roofs, pervious sidewalks or cool pavement.
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More frequent and powerful extreme events, including flooding, droughts, and rising heat waves, are expected in a country like South Africa, which is particularly exposed to the effects of climate change. Because of the uncertainty surrounding climate change, everyone must be prepared to meet any unexpected event in the future, but most importantly, to make informed decisions about it now. The study of climate change's causes, effects, and consequences, as well as solutions, plays an essential role in education. As a result, to design and carry out effective climate change education (CCE), teachers must acquire extensive knowledge and develop locally relevant pedagogical strategies. Teachers interested in tackling climate change confront the issue of incorporating it into their already overburdened school curriculum and the lack of contextualized resources pertinent to their learners’ environments. The “Keep It Cool: Climate Change Education” (KIC-CCE) project aims to integrate CCE into the national ncurriculum and establish climate change projects in Limpopo, Eastern Cape, and KwaZulu-Natal provinces. Secondary school teachers in geography and natural science subjects were trained for this purpose over a three-month trajectory in 2021. Five Higher Education Institutions (HEIs) -Rhodes University, University of Fort Hare, University of Venda, Univeristy of Zululand, and University of KwaZulu-Natal- executed the training. The goal of this master's thesis is to assess the training and teaching materials that have been used to improve teachers' professional development (TPD) in climate change. To that end, the framework applied to measure the training's instructional quality is based on the First Principles of Instruction (FPI). These are five prescriptive principles -Problem-centered, Activation, Demonstration, Application, and Integration- required for effective, efficient, and engaging instruction. To answer the following study questions: (a) What climate change-related teaching materials were used during the KIC-CCE training to increase climate change education? And (b) Were the First Principles of Instruction present during the KIC-CCE training, and if so, how? A qualitative study was carried out. In-depth interviews, participant observation, and content analysis were part of the research. Both the General Core Texts and the Subject-specific Topic Units are locally relevant for teaching climate change in South Africa, according to mapping of the teaching materials used throughout the training. Analyzing these resources at the student and teacher levels reveals that these principles were present in geography and natural sciences subjects, but not in the same proportion. Both subjects have a better affinity for the Problem- Centered Principle at the student level in three out of five Subject-specific Topic Units. However, as compared to the previous units, the Demonstration principle is absent. At the teacher level, the analysis was done by comparing the performance of the five HEIs. Findings reveal that the University of KwaZulu-Natal and Rhodes University significantly promoted learning by adhering to all principles. More specifically, the encouragement of Professional Learning Communities (PLCs) was a key driver for integrating learning. In conclusion, this study highlights the importance of TPD in climate change content and pedagogical knowledge. Besides, its contribution to the discipline of instructional design models and educ...
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