Download or read book The Impacts of Urbanization induced Land Use and Land Cover Change on Land Surface Temperature and Thermal Comfort The Case of Dire Dawa Ethiopia written by Ermias Belete and published by . This book was released on 2023-12-22 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Impacts of Urbanization induced Land Use and Land Cover Change on Land Surface Temperature and Thermal Comfort The Case of Dire Dawa Ethiopia written by Ermias Belete and published by GRIN Verlag. This book was released on 2024-01-05 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2023 in the subject Urban and Regional Planning, grade: Very Good, , course: Geo-Informatics Engineering, language: English, abstract: This study was focused on assessing an Implications of Urbanization-Induced Land Use Land Cover Changes on Land Surface Temperature and Thermal Comfort in Dire Dawa City between 2000 and 2022. The City is experiencing rapid urbanization, and limitation of green area aesthetical values that has resulted in remarkable surface temperature. Despite this, as of yet, no evaluations have been duly executed pertaining to the thermal or ecological factors in Dire Dawa. The study utilized Landsat 5 (TM), Landsat 9 (OIL/TIRS) and MODIS 11A2 images which were obtained from USGS for the study area. To analyze and show results clearly, ArcGIS 10.8, ERDAS IMAGINE 2014, and Excel 2013 softwares were used. The LULC pattern was processed by supervised classification with the maximum likelihood classification algorithm and four major land use land cover (Built-up area, Barren land, Shrub land, and sparse vegetation) were identified. The biggest urban problem facing cities around the world today is the result of land use change induced by urbanization. Rapid urbanization, driven by demographic and economic growth, places additional demands on natural resources, leading to changes in land use, particularly in megacities. Due to urbanization and unplanned human activities, the vegetation of the earth's surface is in constant decline, leading to changes in the environment, especially in the earth's ecosystem at local, regional and global scales. Future increases in climate change and urbanization will exacerbate urban heat islands, especially during heatwaves. Similar to any other cities across the world, different urban areas in Ethiopia are affected by climate change. Dire Dawa city has experienced massive urbanization in terms of population growth, fastest rates of urbanization with a 50 percent growth rate and major changes in the LULC has been a drastic increase in areal extent and coverage. Additionally observed surface improvements such as urban growth, settlement expansion and Construction of new built up or dwelling units in the city, socioeconomic factors, particularly in the context of anthropogenic activities have modified and will continue to modify the case study's microclimate. Despite variations among kebeles, Dire Dawa has population density of 350 people per square kilometer and a growth rate of 4.42 %. As a result, such increasing changes are responsible for increasing surface temperatures, can cause and pose a threat to the city's microclimate.
Download or read book The Impact of Urbanization on Environment in Africa The Case of Yeka Sub City Addis Ababa written by Fitsum Elias Awoke and published by GRIN Verlag. This book was released on 2020-08-31 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2019 in the subject Geography / Earth Science - Physical Geography, Geomorphology, Environmental Studies, grade: A, Ethiopian Civil Service University (College of Urban Development and Engineering), course: Research, language: English, abstract: The general objective of this senior essay is to assess the impact that urbanization has brought to the environment in Yeka sub city. The research is descriptive in its very nature. Besides, both quantitative and qualitative research approach is used. Simple random sampling technique particularly lottery method is used to select samples from the total population. Both primary and secondary data sources have been employed, and questionnaire, interview and observation are employed to collect the required data. Furthermore, quantitative (i.e. descriptive statistics specially frequency distribution and percentage) and qualitative (i.e., verbal analysis or narration) data analysis methods have been launched to analyze the collected data. Data are mainly presented in tabular, pictorial and textual form. Continuous population growth in Yeka sub city resulted in the encroachment of forest land mostly through informal way and this resulted in the minimization of forest cover and the alteration of land use from natural forest into human-made residential and other built-up areas on a continuous manner. Besides the formal settlement, made by the legal allotment of land, the informal settlement is very high and even difficult to control. This indicates the high magnitude of urbanization in the sub city. The main causes for the continuous urban population growth or urbanization are influx of people into the city of Addis Ababa, ever-increasing natural birth rate and reduced mortality rate. The impact that urbanization has on the environment encompass deforestation, land slide and soil degradation, excessive waste generation and water and land pollution, and air pollution. Protecting agricultural and forest land as well as public open spaces from human settlement, containing the growth of the sub city within limited square with the help of policy instrument that earmark regulatory environment, restrict the geographic or spatial growth of the city, facilitate the management of urban growth and protect/preserve public open spaces and forest lands, reducing the influx of people through the creation of equal development opportunities for all rural and urban centers and implementing family planning is compulsory, and controlling informal settlement with a very strict regulatory environment is decisively needed.
Download or read book Impacts of Land Redistribution on Land Management and Productivity in the Ethiopian Highlands written by Samuel Benin and published by ILRI (aka ILCA and ILRAD). This book was released on 2002-01-01 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impacts of Land Use Cover Change Cropland Expansion and Climate Change on the Potential of Yield and Production in Ethiopia Gambella Region written by Azeb W. Degife and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of integrated land management landscape position and land use types on soil physicochemical properties discharge species richness and carbon stock in Geda watershed north Shewa Ethiopia written by Hailu Terefe and published by GRIN Verlag. This book was released on 2021-02-16 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2020 in the subject Environmental Sciences, grade: A, Addis Ababa University, course: Environmental Science, language: English, abstract: This research is aimed at exploring the changes in indicators of ecosystem services associated with integrated land management practices and generating information and data from agricultural landscapes. The specific objectives are to evaluate changes in selected soil physicochemical properties of the treated site taking the neighboring control site as a base, to quantify the change in water discharge due to integrated land management practices, to assess plant species richness in the watershed and compute changes due to integrated land management practices, to determine the plant biomass production and carbon stock of the watershed associated with integrated land management practices. This thesis is organized in five chapters. The first chapter provides general background information followed by the research problem, justification of the study, research objectives, hypotheses and research questions. The second chapter is a review of relevant literatures that gives existing evidences on the severity of land degradation, rehabilitation efforts and outcomes of rehabilitation works in Ethiopia, and the third chapter is the materials and methods section that begins with a description of the study area and explanations the research methods. Chapter four presents results and discussion of each research objective which are published in or submitted to peer-reviewed scientific journals and manuscripts under preparation. Chapter five provides the conclusions and recommendations of the research.
Download or read book Salt Affected Soils in Dire Dawa Ethiopia A Characterization and Classification written by Mintesinot Desalegn and published by GRIN Verlag. This book was released on 2021-02-02 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (undergraduate) from the year 2019 in the subject Geography / Earth Science - Physical Geography, Geomorphology, Environmental Studies, Haramaya University, course: Management of Arid and Salt Affected Soils, language: English, abstract: The aim of this study was to identify the nature and quantify selectively soil chemical properties of the study area, to characterize and categorize salinity soil based on their salt content of the study area and to give suggestion appropriated reclaim of salt affected agricultural land management practices. Soil salinity and alkalinity problems are commonly found in the arid and semi-arid regions of the earth due to insufficient annual rainfall to leach accumulated salts from the root zone. In other words, salt affected soils often occur in areas where soluble salts and sodium (Na) accumulate in soils through physical and chemical weathering of rocks or the pedogenic process of the soil development, atmospheric precipitation and fossil salts from marine or lacustrine environments. Moreover, heavy fertilizer application and use of poor-quality irrigation water and inadequate drainage have contributed to the development of salt affected soils and productivity deterioration of many soils in irrigated arid and semi-arid regions. Ethiopia is the first in Africa and the ninth country in the World having more than 11 million ha of salt affected soils which are mainly found in the Rift Valley, Wabi Shebele River Basin and various lowlands of the country. Following the establishment of large-scale irrigated farms, the problem become worse due to poor drainage system and inappropriate water management practices coupled with unsound reclamation procedures, To understand how improved soil fertility may assist in reaching these needs, it requires knowledge of salinity and sodicity related soil chemical properties the soils of the land’s agriculture. Such knowledge is believed to help the producers and production managers to understand about and make the necessary modifications in the soil-salt-water balance.
Download or read book Impacts of Population Pressure on Land Use Land Cover Change Agricultural System and Income Diversification in West Gurageland Ethiopia written by Muluneh Woldetsadik and published by . This book was released on 2003 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ethiopia s spatial and structural transformation Public policy and drivers of change written by Schmidt, Emily and published by Intl Food Policy Res Inst. This book was released on 2018-07-03 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper evaluates Ethiopia’s urbanization trend during the last four decades, while also considering Ethiopia’s structural transformation and recent public investments to promote greater industrialization within the country. Ethiopia’s urban population grew 4.2 percent per year between 1994 and 2015, far outpacing the overall population growth rate of 2.5 percent. Compared to the urban growth rate of Africa (3.5 percent per year), Ethiopia experienced a 20 percent faster urban population growth rate (UNDESA 2015). Urbanization in Ethiopia is expected to reach 38 percent by 2050. However, this level is relatively low compared to the majority of sub-Saharan Africa (SSA) countries. Improved road infrastructure, rural to urban migration and secondary city development is increasing urbanization within the country. In addition, recent public investments to promote industrialization and increase manufacturing labor opportunities via newly constructed and planned industrial parks are projected to increase urbanization and bolster structural transformation across the country. We evaluate these investments and demographic trends within the context of other countries in sub-Saharan Africa, as well as with the experience of India and China. Ethiopia’s investment in higher-value manufacturing and service activities via economic zones may provide similar infrastructure to that of China and India’s ‘township and village enterprises’ (TVE). However, a focus on increasing human capacity and labor mobility will be necessary to ensure that rural farmers are able to take advantage of labor opportunities outside of the agriculture sector. We calculate the projected economic impact of Ethiopia’s planned industrial zones and sugar factories and find that while public and private investment in industrial and agro-industrial parks may provide a catalyst for future growth, they are likely to provide only a small share of total output and employment. Investments in sugar factories are anticipated to total USD 5.2 billion, with estimated production of USD 3.6 billion and value-added of USD 3.3 billion. However, an increase in sugar output of this magnitude would imply massive sugar exports that may not be financially profitable.
Download or read book Dire Dawa Urban Profile written by United Nations Human Settlements Programme. Regional and Technical Cooperation Division and published by . This book was released on 2008 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Use Land Cover Change and Their Impact on Livelihood s written by Cheru Techane and published by . This book was released on 2013-09-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analyzing the Impact of Land Use and Land Cover Change on Ground Water Recharge Using RS and GIS Approach written by K. Ram Mohan Rao and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human beings have exerted large-scale changes on the terrestrial biosphere, primarily through agricultural practices. However, the impacts of such changes on the hydrologic cycle are poorly understood. The purpose of this study is to show the impacts of Land Use and Land Cover (LULC) change on the subsurface portion of the hydrologic cycle by changing groundwater recharge. To analyze these changes in the catchment area and spatial pattern over the time, a set of satellite images was obtained for the years 1973 (MSS), 1986 (TM) and 2000 (ETM), and hydro meteorological data for over 30 years was taken and used for the trend analysis of these factors. It has been observed that the ground water recharge is progressively declining in considerable rate. The decline in the rate of recharge has been treated by analyzing the temporal trend patterns of some of the hydro meteorological elements that have a great impact on groundwater recharge conditions and LULC of the catchment, specially vegetation cover. Trends of these elements are presented in the following way: annual precipitation is slightly decreasing, however, its rate of decline is not comparable with the significant decrease in ground water recharge; the potential evapotranspiration is slightly decreasing that favors recharge; the annual surface runoff of the catchment is appreciably increasing, and the lake level rise shows a highly increasing trend. Based on this results, it is highly recommended to protect the remaining patches of vegetation and apply both physical and biological conservation measures to reclaim the degraded areas.
Download or read book Land Use and Land Cover Change Drivers and Its Impact written by Hussien Ali Oumer and published by . This book was released on 2009 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Watershed Hydrological Responses to Changes in Land Use land Cover and Climate Change in Western Ethiopia written by Wakjira Takala Dibaba and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Impacts of Climate Change on Regional Water Resources and Agriculture in Africa written by Kenneth M. Strzepek and published by World Bank Publications. This book was released on 2007 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper summarizes the methods and findings of the hydrological assessment component of the project studying likely impacts of climate change on water resources and agriculture in Africa. The first phase of the study used a version of a conceptual rainfall-runoff model called WatBal (Water Balance) applied to gridded data to simulate changes in soil moisture and runoff across the whole continent of Africa rather than to any particular catchment or water resource system. The model inputs were the climate variables of the 1961-90 climatology and physiological parameters (such as soil properties and land use) derived from global datasets for each of the 0.5 degree latitude/longitude cells across the continent. The primary model output comprised a time series (monthly time step) of simulated runoff for all the grid cells for each of the districts in the countries of interest. The second phase of the study extended the hydrology analyses to update the above hydroclimatic series to the year 2000 using updated input data. To ascertain the possible impacts of climate change within the districts being investigated this study used synthetic or GCM-based climate change scenarios as input to the WatBal model. The WatBal model was used to determine the impact of these different scenarios on runoff and actual evaporation and hence flow in the districts under study. The generated hydroclimatic series and scenario analyses were used as inputs into various Ricardian regressions in other analyses measuring likely impacts of climate change on the agricultural economies of Africa.
Download or read book Soil Acidity induced Land Use cover Change and Management Systems on Soil Quality Parameters in the Central Highlands of Ethiopia written by Temesgen Desalegn Bekalu and published by . This book was released on 2015 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unveiling the Water Challenges in Dire Dawa City Ethiopia written by Seble Ayele and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urbanization in Ethiopia is increasing rapidly, leading to environmental changes and necessitating improved urban infrastructure. Dire Dawa, the second most populous city in Ethiopia, has a high rate of urban growth. However, there is no clear plan for a viable water supply source. This study focuses on three main areas: remote sensing analysis of urban growth, urban water supply and water distribution system, and groundwater resources quality and quantity. The changes in land use and land cover (LULC) over four different time periods were analyzed, and the results showed significant and rapid expansion of the city. The current and future water demand and supply were then analyzed, and it was found that the water supply is three times less than the water demand, indicating that existing water sources are not adequate for the future expansion of the city. The hydraulic performance of the existing distribution system was analyzed using WaterGems software, and it was found that pressure at 22.41% of nodes and velocities at 29.83% of pipes are sufficient to provide water for the study area. Lastly, changes in groundwater level due to urban growth and the status of groundwater quality were analyzed. The discharge and water level of each borehole is declining over time, leading to water shortages in the city. Furthermore, the groundwater quality of the boreholes in some locations is not within the permissible limit range, which can cause public health problems and damage to water supply systems.
