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| 1 | Spatially explicit statistical modeling of random and systematic land cover transitions in the main grassland plain of Nech Sar National Park, Ethiopia显示文摘The main grassland plain of Nech Sar National Park(NSNP)is a federally managed protected area in Ethiopia designated to protect endemic and endangered species.However,like other national parks in Ethiopia,the park has experienced significant land cover change over the past few decades.Indeed,the livelihoods of local populations in such developing countries are entirely dependent upon natural resources and,as a result,both direct and indirect anthropogenic pressures have been placed on natural parks.While previous research has looked at land cover change in the region,these studies have not been spatially explicit and,as a result,knowledge gaps in identifying systematic transitions continue to exist.This study seeks to quantify the spatial extent and land cover change trends in NSNP,identify the strong signal transitions,and identify and quantify the location of determinants of change.To this end,the author classifies panchromatic aerial photographs in 1986,multispectral SPOT imagery in 2005,and Sentinel imagery in 2019.The spatial extent and trends of land cover change analysis between these time periods were conducted.The strong signal transitions were systematically identified and quantified.Then,the basic driving forces of the change were identified.The locations of these transitions were also identified and quantified using the spatially explicit statistical model.The analysis revealed that over the past three decades(1986–2019),nearly 52%of the study area experienced clear landscape change,out of which the net change and swap change attributed to 39%and 13%,respectively.The conversion of woody vegetation to grassland(~5%),subsequently grassland-to-open-overgrazed land(28.26%),and restoration of woody vegetation(0.76%)and grassland(0.72%)from riverine forest and open-overgrazed land,respectively,were found to be the fully systematic transitions whereas the rest transitions were recorded either partly systematic or random transitions.The location of these most systematic land cover transitions identified through the spatially explicit statistical modeling showed drivers due to biophysical conditions,accessibility,and urban/market expansions,coupled with successive government policies for biodiversity management,geo-politics,demographic,and socioeconomic factors.These findings provide important insights into biodiversity loss,land degradation,and ecosystem disruption.Therefore,the model for predicted probability generally suggests a 0.75 km and 0.72 km buffers which are likely to protect forest and grassland from conversion to grassland and open-overgrazed land,respectively. | Kiros Tsegay Deribew | 2019 | Ecological Processes2019，8，1： | 1 |
| 2 | Common mental disorders in TB/HIV co-infected patients in Ethiopia显示文摘 | Deribew A Tesfaye M Hailmichael Y | 2010 | BMC Infectious Diseases2010，12，10： | 1 |
| 3 | Barriers and facilitators to antiretroviral medication adherence among HIV-infected paediatric patients in Ethiopia:A qualitative study显示文摘 | Biadgilign S Deribew A Amberbir A | | 0，，04： | 1 |
| 4 | Barriers and facilitators to antiretroviral medication adherence among HIV- infected paediatric patients in Ethiopia: a qualitative study 显示文摘 | Biadqiliqn S Deribew A Amberbir A | 2009 | SAHARA J2009，6，4： | 1 |
| 5 | Tuberculosis and HIV co-infection:its impact on quality of life显示文摘 | Deribew A Tesfaye M Hailmichael Y | 2009 | Health Qual Life Outcomes2009，7，： | 1 |
| 6 | Knowledge,health seeking behavior and perceived stigma towards tuberculosis among tuberculosis suspects in a rural community in southwest Ethiopia显示文摘 | Abebe G Deribew A Apers L | 2010 | PLoS One2010，5，13： | 1 |
| 7 | Tuberculosis and HIV co-infection:its impact on quality of life显示文摘 | Deribew A Tesfaye M Hailmichael Y | 2009 | Health Qual Life Outcomes2009，7，： | 1 |
| 8 | Barriers and facilitatorsto antiretroviral medication adherence among HIV-infected paediatricpatients in Ethiopia:a qualitative study 显示文摘 | Biadgilign S Deribew A Amberbir A | 2009 | SAHARA J2009，6，4： | 1 |
| 9 | Knowledge, health seeking behavior and perceived stigma towards tuberculosis among tuberculosis suspects in a rural community in south- west ethiopia 显示文摘 | Abebe G Deribew A Apers L | 2010 | PLoS One2010，5，13： | 1 |
| 10 | Adherence to highly ac- tive antiretroviral therapy and its correlates among H1V infected pe- diatric patients in Ethiopia显示文摘 | Biadgilign S Deribew A Amberbir A | 2008 | BMC Pediatrics2008，8，： | 1 |
| 11 | Urinary schistosomiasis and malaria associated anemia in Ethiopia显示文摘Objective:To assess the prevalence of anemia in children with urinary schistosomiasis,malaria and concurrent infections by the two diseases.Methods:Urine and blood samples were collected from 387 children(216 males and 171 females)to examine urinary schistosomiasis and malaria and to determine hemoglobin concentration at Hassoba and Hassoba Buri village in Amibara woreda,Afar region,Ethiopia.Results:The overall prevalence of urinary schistosomiasis and Plasmodium falciparum malaria was 24.54%and 6.20%respectively.Only 2.84%of children carried concurrent infections of both parasites.There was high percentage of anemic patients(81.81%)in the coinfected cases than in either malaria(33.3%)or schistosomiasis(38.94%)cases.There was significantly low mean hemoglobin concentration in concurrently infected children than non-infected and single infected(P<0.05).The mean hemoglobin concentration between Plasmodium falciparum and S.haematobium infected children showed no significant difference(P>0.05).The level of hemoglobin was negatively correlated with the number of S.haematobium eggs/10 mL urine(r=-0.6)and malaria parasitemia(r=-0.53).Conclusions:The study showed that anemia is higher in concurrently infected children than non-infected and single infected.Furthermore,level of hemoglobin was negatively correlated with the number of S.haematobium eggs and malaria parsitemia.Therefore,examination of hemoglobin status in patients co-infected with malaria and schistosomiasis is important to reduce the risk of anemia and to improve health of the community. | Ketema Deribew Zinaye Tekeste Beyene Petros | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，4： | 0 |
| 12 | Evaluation of land suitability for Moringa oleifera tree cultivation by using Geospatial technology:The case of Dhidhessa Catchment,Abay Basin,Ethiopia显示文摘Land suitability analysis of Moringa oleifera tree cultivation is important to enhance its product,as the demand forthis tree for medicinal values and food sources is increasing worldwide.Therefore,this study aimed to assess suitableland for Moringa oleifera tree cultivation by using the integration of multi-criteria evaluation with geospatialtechnologies in the Dhidhessa catchment,western Ethiopia.Five parameters,namely:slope,land use and landcover(LULC),soil texture,land surface temperature,and rainfall data,were used in this study.The land suitabilityevaluation of Moringa oleifera is classified into three classes as highly suitable,moderately suitable,and notsuitable.The results revealed that,about 344.4 km2(12.2%)of the area is categorized into highly suitable,and2343.7 km2(83%)is moderately suitable for Moringa tree,whereas,137.2 km2(4.9%)is categorized as notsuitable for Moringa oleifera tree cultivation.Hence,based on the finding of the study,we suggested that farmers andother stakeholders can cultivate Moringa oleifera trees in the Dhidhessa catchment. | Mitiku Badasa Moisa Muleta Ebissa Feyissa Indale Niguse Dejene Firdissa Sadeta Tiye Kiros Tsegay Deribew Zenebe Reta Roba Mengistu Muleta Gurmessa Dessalegn Obsi Gemeda | 2023 | Oil Crop Science2023，8，1： | 0 |
| 13 | Spatiotemporal analysis of urban growth on forest and agricultural land using geospatial techniques and Shannon entropy method in the satellite town of Ethiopia,the western fringe of Addis Ababa city显示文摘Rapid conversion of conserved land and cropland to non-agricultural purposes is threatening the ecological areas and dominant agricultural activities that are the main sources of livelihood in urban fringe areas of Addis Ababa City.The combinations of government policy,socioeconomic,demographic dynamics,and biophysical triggers have driven such transformation.However,the recent fast urban expansion and infrastructural development could have accelerated the severity and rate at which urban growth impacts the ecosystem and fertile agricultural land.Yet,little attention is given about their impacts on forest and farming communities in the western fringe areas of Addis Ababa during the recent past.This study,therefore,aimed at quantifying and analyzing the trends of the urban growth and its impacts on flora and agricultural land in Sebeta-Awas town using an integrated GIS tool,remote sensing technique,and Shannon entropy method.Landsat TM of 1986,ETM+of 2002,and OLI of 2019 were used to produce land use/land cover(LULC)classes.Object-based classification technique was carried out to generate the LULC and to measure the changes in the urban land-use class within the satellite town in the year 1986,2002,and 2019.Shannon entropy method was applied to model study area’s urban sprawl,growth trend,and spatial change.Over the past three decades(1986-2019),Sebeta-Awas town has experienced severe urban sprawl following lack of proper development control and management.The annual urban growth rates of 1.2,5.5,and~15%for the periods of 1986,2002,and 2019,respectively were obtained mainly at the expenses of agricultural land(25.48%)and forest land(16.6%),catalyzed urban sprawl which finally led to serious deforestation and reduction in rural farmland.The findings indicate that the average of entropy index increased from 0.02 in the year 1986 to 0.996 in the year 2019,indicating more dispersed urban growth to the outskirts,and spatially indicating anticlockwise shifting.In this regard,more than 90.2%of forest loss due to agricultural encroachment,built-up area expansion,and construction was widely observed in Sebeta and Alem Gena areas,of course,Northeast zone in this study.It is concluded that deforestation and continual evacuation of farming communities in the urban fringe areas due to rapid urban expansion in the name of investment and infrastructural development is expected to be worsened in the near future unless strong policy revision and management actions are undertaken. | Kiros Tsegay Deribew | 2020 | Ecological Processes2020，9，1： | 0 |
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