Download or read book Remote Sensing and GIS Based Soil Loss Estimation Using RUSLE in Bahir Dar Zuria District Ethiopia written by Desale Kidane Kidane Asmamaw and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The severity of soil loss in the Ethiopian highlands has been increased from time to time. Hence, the assessment of soil erosion using models is very important for planning successful and sustainable soil management. This study was conducted in Bahir Dar Zuria district, Ethiopia with aiming to quantify the amount of soil loss using the GIS-based RUSLE (Revised Universal Soil Loss Equation) model. Based on the study, the most pronounced RUSLE factor that increases soil erosion was the slope length (L) and slope steepness (S). Compared with other land uses, bare land and cropland in the higher slopes were more vulnerable to erosion. As expected slope and soil losses have a direct relationship. About 80% of the study area experienced annual soil loss of less than 1.2 ton/ha/yr. Conversely, soil loss was very high for slopes greater than 30%. This indicated that slope has a great impact on regulating soil loss. The annual soil loss for cropland, vegetation, grassland, and degraded land was 19.05, 8.78, 8.82, and 71.16 ton/ha/yr., respectively. This is to means that land use land cover have a strong relationship with the amount of soil loss. The same land cover with different slopes have different soil loss amount. It was found that lack of vegetative cover during the critical period of rainfall, expansion of croplands, and absence of support practices increase soil erosion. Thus, the application of stone lines, contour tillage, terraces, and grass strip barriers are suggested to break the slope length into shorter distances, reducing overland flow velocity and soil erosion. Moreover, improving the awareness of society to reduce the illegal cutting of trees and apply conservation practices to reduce soil erosion in their farmland is very essential.
Download or read book Soil Erosion written by António Vieira and published by BoD – Books on Demand. This book was released on 2021-05-12 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil erosion is a major environmental issue with a worldwide impact and direct and indirect effects on soil productivity and consequently on human survival. Although a natural process, soil erosion has increased significantly due to human intervention, especially in the last centuries, through diverse activities such as intensive agriculture, overgrazing, urban sprawl, deforestation, and industrial and mining activities. Presently, soil erosion and degradation promoted by human action have reached extreme levels, necessitating urgent measures to promote soil conservation and rehabilitation. This book presents perspectives on soil erosion occurring in different parts of the world as well as some successful initiatives and strategies for soil conservation and rehabilitation.
Download or read book Remote Sensing and GIS Technology written by Pratibha Katara and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study aimed at estimating runoff and sediment yield by using remote sensing and GIS techniques in catchment. Thematic layers of soil, topographic elevation, slope, land use/land cover (LULC) were generated in GIS platform by using existing soil map, SRTM DEM, and IRS-P4 satellite imagery. The GIS-based soil map was used to develop hydrologic soil group (HSG) map of the study area. HSG and LULC maps were used to generate curve number (CN) map in the GIS environment. Weighted CN value under antecedent moisture condition (AMC) type I, II and III for catchment was computed based on the GIS-based CN map, which were used to compute annual surface runoff. Furthermore, GIS-based maps of six USLE model factors, R, K, L, S, C and P, were generated. Raster maps of the six USLE factors were multiplied to estimate sediment yield on pixel basis.
Download or read book RUSLE GIS estimation of the Soil Loss Lake Abaya Ethiopia for Combating Soil Erosion Through Reforestation Via the FLR Approach written by Julian Koepke 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 Environmental Applications of Remote Sensing and GIS in Libya written by Hamdi A. Zurqani and published by Springer Nature. This book was released on 2022-06-29 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the environmental challenges that Libya and similar countries in the regions are currently facing. Each chapter of this book provides a methodology using remote sensing (RS) and geographical information systems (GIS) dealing with one of these environmental challenges such as monitoring and mapping soil salinity and prediction of soil properties, monitoring and mapping of land degradation, spatiotemporal land use/cover, agricultural drought monitoring, hydrological applications such as spatial rainfall distribution, surface runoff, geo-morphometric analysis, flood hazard assessment and mapping, hydrologic and hydraulic modeling, pollution hazard assessment, and climate-related geophysical processes. This book also assesses the impacts of climate change on natural resources using both RS and GIS, as well as other applications, covering different parts of Libya. This book is beneficial for graduate students, researchers, policy planners, and stakeholders in Libya as well as other countries that share similar environmental issues. Also, the methodologies followed in the book's chapters can be applied to any other regions around the world with similar landscapes and climatic conditions.
Download or read book Recent Advances in Remote Sensing and Geoinformation Processing for Land Degradation Assessment written by Achim Roeder and published by CRC Press. This book was released on 2009-04-23 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Land degradation and desertification are amongst the most severe threats to human welfare and the environment, as they affect the livelihoods of some 2 billion people in the worlds drylands, and they are directly connected to pressing global environmental problems, such as the loss of biological diversity or global climate change. Strategies to co
Download or read book Geospatial Technologies for Land Degradation Assessment and Management written by R. S. Dwivedi and published by CRC Press. This book was released on 2018-10-17 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: The constant growth of the world’s population and the decline of the availability of land and soil resources are global concerns for food security. Other concerns are the decrease in productivity and delivery of essential ecosystems services because of the decline of soil quality and health by a range of degradation processes. Key soil properties like soil bulk density, organic carbon concentration, plant available water capacity, infiltration rate, air porosity at field moisture capacity, and nutrient reserves, are crucial properties for soil functionality which refers to the capacity of soil to perform numerous functions. These functions are difficult to measure directly and are estimated through indices of soil quality and soil health. Soil degradation, its extent and severity, can also be estimated by assessing indices of soil quality and health. "Geospatial Technology for Land Degradation Assessment and Management" uses satellite imagery and remote sensing technologies to measure landscape parameters and terrain attributes. Remote sensing and geospatial technologies are important tools in assessing the extent and the severity of land and soil degradation, their temporal changes, and geospatial distribution in a timely and cost-effective manner. The knowledge presented in the book by Dr. R.S. Dwivedi shows how remote sensing data can be utilized for inventorying, assessing, and monitoring affected ecosystems and how this information can be integrated in the models of different local settings. Through many land degradations studies, land managers, researchers, and policymakers will find practical applications of geospatial technologies and future challenges. The information presented is also relevant to advancing the Sustainable Development Goals of the United Nations towards global food security.
Download or read book Regional Soil Loss Prediction Utilizing the RUSLE GIS Interface written by J. Blaszczynski and published by . This book was released on 1992 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The revised universal soil loss equation (RUSLE) for rangelands was successfully interfaced with geographic information systems (GIS). The procedure utilizes raster processing capabilities of the map analysis and processing system (MAPS) to overlay data themes containing spatially distributed values for differentRUSLE factors. Within the limitations in accuracy of the USLE style calculation, cell processing, and information contained in input data layers, the methodology produces a map of relative levels of soil erosion potential which reflects the effects of rainfall, soil type, terrain, vegetation, and erosion control practice on soil loss. Improvements in processing to obtain the terrain (LS) factor from digital elevation models (DEMs) permit quick calculation of soil loss potential for large areas. Since the resolution of the product is determined by the quality and availability of the data, the methodology could be applied differentially to various areas and data sets to produce maps of low, medium, and high resolution. The flexibility of the procedure permits modeling of various management alternatives by changing values for the appropriate factors to reflect changing conditions. Furthermore, the RUSLE/GIS interface can be interfaced with other GIS models. All of the preceding indicate that the RUSLE/GIS interface has potential for and could be adapted for soil degradation studies on a global scale. The following is a conceptual summary of the procedure and is meant to provide only a quick overview of the methodology.
Download or read book An Assessment of Woody Biomass Community Forests Land Use and Soil Erosion in Ethiopia written by Ulf Helldén and published by . This book was released on 1987 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monitoring soils in the environment with remote sensing and gis written by Richard Escadafal and published by IRD Orstom. This book was released on 1996 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: ISSS congress remote sensing
Download or read book GIS and Remote Sensing for Soil Erosion Studies in Semi arid Environments written by Petter Pilesjö and published by . This book was released on 1992 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multi Criteria Evaluation in Generating Soil Loss Potential Map Using GIS Based on RUSLE Parameters written by Bandana Banerjee and published by . This book was released on 1995 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Reflective Remote Sensing for Land Degradation Studies in a Mediterranean Environment written by Steven M. de Jong and published by . This book was released on 1994 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating the Ability to Predict Soil Loss Through the Use of Remotely Sensed Data and Landscape Parameters Automated Through a Custom GIS Procedure written by Brian Kelsey and published by . This book was released on 2006 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Conservation Practices in Bahir Dar Zuria Wereda Ethiopia written by Rediet Hussien and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil erosion is a major threat to the sustainability of agricultural land and food security. Thus, this book tries to contribute to the adoption of soil conservation that improves agricultural productivity in the underdeveloped world. To study the status of soil conservation practices in the study area, four sample kebeles (sub-districts) were randomly selected. About 121 sample farmers were randomly selected from the selected kebeles as respondents. The respondent farmers were categorized as adopters and non adopters of soil conservation practices. Primary and secondary data were collected. The result showed that educational level, slope of farmland, plot distance, livestock holding, off-farm activities, land tenure security system, training, extension support, perception of farmers about soil erosion as a problem, and their attitude to conservation technologies were found to be significant in influencing farmers adoption of soil conservation practices. The book could be useful to professional researchers, development agents, soil conservation experts in the governmental and non-governmental organizations.
Download or read book Remote Sensing and GIS for Land Cover land Use Change Detection and Analysis in the Semi natural Ecosystems and Agriculture Landscapes of the Central Ethiopian Rift Valley written by Bedru Sherefa Muzein and published by . This book was released on 2010 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing And Assessment Of Soil Resources written by A. K. Kolay and published by . This book was released on 2009-07-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
