http://ir.haramaya.edu.et//hru/handle/123456789/87 Mon, 20 Apr 2026 12:31:29 GMT 2026-04-20T12:31:29Z http://ir.haramaya.edu.et//hru/handle/123456789/7377 EFFECT OF EUCALYPTUS GLOBULUS TREES ON SELECTED PHYSICO-CHEMICAL PROPERTIES OF SOIL, GROWTH AND YIELD OF MAIZE (ZEA MAYS L.) AT HULA JANNATA IN GIRAWA DISTRICT, EAST HARARGHE, ETHIOPIA Ibrahim Abdurahman Ahmed; Lemma Wogi (PhD); Dargo Kebede (Asst Prof) Eucalyptuses are the most commonly expanded for wood deficiency both for construction and fuel wood. The field experiment were conducted at Hula Jannata, Girawa woreda from April 01, 2021 to December 29, 2021 E.C, on the farmers farm land which is fenced by Eucalyptus globulus with a similar tree age to orientations in Northern, Southern aspects. The experiment was laid out in Randomized Complete Block Design (RCBD). The soil samples were collected from the plots with the distance of 2, 6, 10, 14 and 25 m 0-30cm depth and soil auger used. The soil samples were collected and composited into one sample. The test crop used for this study was maize variety BH 661, a widely planted variety in the area. The spacing was, on average, 75 cm between lines and 25 cm between plants. Two sampling quadrats of an area 1m*1m were randomly laid out at each distance of 2, 6, 10, 14 and 25 m from the Eucalyptus globulus stands. The maize plant population and height in both northern and southern orientation was increased by the distance 2 m to 25 m from Eucalyptus globulus stand. The maize grain yield and biomass was reduced by the distance 25 m to 2 m as approaches to trees stand in both northern and southern orientations. There is no significant difference in bulk density and soil moisture was observed along the distance from Eucalyptus globulus. There were no significance differences in soil pH along the distance from Eucalyptus and between both northern and southern orientation. The organic carbon, total nitrogen and available phosphorus in both farmlands were increased with distance farther from Eucalyptus stands. There was significant difference herbaceous species diversity and species richness at 0.05 along the distance from 2 m to control. The study was aimed to examine the effect of Eucalyptus globulus on selected soil physical and chemical properties, identify other plant species diversity, species richness and evenness under the canopy of Eucalyptus and its effect on emergence of seedling, plant height, dry biomass and grain yield of the maize. Hence, it is important to assess the impact of Eucalyptus globulus expansion on the soil nutrient and other physico-chemical properties status by considering the different crops, on chat and the long term effects of the species with other natural forest. 85 Sun, 01 Oct 2023 00:00:00 GMT http://ir.haramaya.edu.et//hru/handle/123456789/7377 2023-10-01T00:00:00Z http://ir.haramaya.edu.et//hru/handle/123456789/7244 LAND USE/LAND COVER CHANGE, DRIVING FORCES AND ITS IMPLICATION FOR LAND DEGRADATION AT YEKA SUB WATERSHED OF EAST HARARGHE HIGHLANDS, ETHIOPIA AHMEDNUR ALIYI ADEM; Solomon Asfaw (PhD); Solomon Tekelegn (PhD) Land use land cover change mainly through the conversion of natural vegetation to agricultural land and settlement land has been the most widely observed activity in Ethiopia. The objective of this study was to analyze the land use/ land cover change, driving forces, and its implications for land degradation in the period between 1990 and 2020 in the Yeka sub-watershed of the west Hararghe highlands, Eastern Ethiopia. The study used multi-date remote sensing data taken for the periods of 1991, 2005, and 2020 from Land Sat Thematic Mapper (TM), Enhanced Thematic Mapper7 (ETM+), and Operational Land Imager (OLI) respectively. The remote sensing of each study period was preprocessed and classified using the supervised classification approach which is based on Maximum Likelihood Classifier (MLC) algorithm. The remote sensing data was supported with primary data collected through a survey questionnaire, FGD, and key informant interviews. Generally, five land use/land cover types were identified in this study. These include Bare land Cultivated land, shrubs, forest, and settlement areas. The results demonstrated that bare lands, cultivated lands, forests, and shrubs constituted the most extensive type of LULC in the study area. While the smallest lands cover classes were the settlement areas. According to the results, the study area experienced a significant change in land use/land cover in the period between 1991 to2020. Generally, the area of forest cover showed a decreasing trend whereas the area of cultivated lands and settlements were increasing over the last thirty years (1991 to 2020). Population pressure, increasing demands for cultivated land, fuel wood, and construction), policy, and institutional are the major factors attributed to the observed land use and cover change in the study area. The land use/ land cover change observed in the study area generally has resulted in an acceleration of soil degradation, a decline in the quality of soil and soil fertility, and an increase in the loss of biodiversity. 98 Sat, 01 Apr 2023 00:00:00 GMT http://ir.haramaya.edu.et//hru/handle/123456789/7244 2023-04-01T00:00:00Z http://ir.haramaya.edu.et//hru/handle/123456789/4781 URBAN GREEN SPACE MANAGEMENT AND ACCESSIBILITY: THE CASE OF HOSSANA TOWN, HADIYA ZONE, SNNPR, ETHIOPIA Bekele, Negatu(MA); Asfaw, Solomon(PhD); Wakuma, Abenezer (PhD) Urban green spaces management a number of functions and provide a diversity of benefits to the urban residents. The benefits of green spaces in the urban spatial environment today viewed within the prism of sustainable development and in that sense, urban green spaces provide. The study was focused on the title of urban green space management and accessibility in Hossana town administration. The main objective of the study was urban green space management and accessibility. This study used primary and secondary source of data. From Primary data was collected from the study area using questionnaire, organizing interview and conducting field observations, and primary source of data questionnaires were selected and the secondary source of data journals, books, references. The population of the study was 56,000 and the sample size of the study was 138. The sampling technique that was employed in this study was purposive sampling technique and mixed method type applied on cultural, demographics factors, and socio-economic status of green space, physical proximity, and awareness on benefit of green spaces, plan implementation problems, management practices, ritual factors, diversity training, and beliefs. The statistical model namely binary logit were employed to assess the use of urban green space management and accessibility. The finding of the study was show that age of household head, sex, education, status of the green space, awareness on benefit of green space, plan implementation problem were affect urban green space management negatively while marital status, ritual factors, diversity training, beliefs, management practices participation in tree planting campaign were significant factors that affect green space management positively. The study recommended urban green space management should emphasize above factors on urban green space to make more accessible beside this existing urban green space management and accessibility should be more participatory. 83 Sun, 01 Aug 2021 00:00:00 GMT http://ir.haramaya.edu.et//hru/handle/123456789/4781 2021-08-01T00:00:00Z http://ir.haramaya.edu.et//hru/handle/123456789/3927 IMPACT OF CLIMATE VARIABILITY ON WHEAT (Triticum aestivum L.) PRODUCTIVITY AND ADAPTATION STRATAGIES AMONG SMALLHOLDER FARMERS IN GIBE WOREDA OF HADIYA ZONE, SOUTHERN ETHIOPIA Abayicho Sulamo, Desta; Aschalew, (PhD) Abebe; Kumar Dube, (PhD) Dharmendra This study was conducted in Gibe woreda, Hadiya Zone Southern Ethiopia to analyze rainfall and temperature variability impacts on Wheat (Triticum aestivum L.) productivity and adaptation strategies among smallholder farmers. Data on rainfall and temperature (1988-2017) and wheat yield (2000-2014) were obtained from National Meteorological Agency and Gibe woreda agriculture office, respectively. Climate parameters; rainfall totals, onset, cessation and length of growing period analysis was done using Instat V3.37 software. The variability, trend, correlation and regression analysis were done using XLSTAT 2014 and SPSS statistical software at Fonko and Hosanna Stations. Annual and kiremt mean rainfall was 1215 and 621.2 mm at Fonko station and 1172 and 916 mm respectively at Hosanna station. The observed variability trends indicated decreasing in rainfall total at Fonko and Hosanna stations in annual and kiremt rain fall total and non-significant trend was observed in the study area. Annual and kiremt minimum and maximum temperature showed an increasing trend at both stations. However, the temporal variability of maximum temperature showed less variability as compared to minimum temperature. The result of relationship between wheat and climatic variables showed that kiremt rainfall total (r = 0.712) and kiremt maximum temperature had significant strong positive and negative relationship with wheat yield respectively in the study area. Whereas LGP, cessation date (r = 0.336) and kiremt minimum temperature (r = 0.018) has moderate and very weak positive correlation with wheat yield. Though, kiremt onset date of rainfall (r = -0.176) has very weak and negative correlation with wheat yield in the study area. The multiple linear regression analysis predicts that an increase in kiremt total rainfall, cessation date, LGP, and kiremt minimum temperature will result in an increase in wheat yield. However, an increase in kiremt maximum temperature and onset date will cause a decrease in wheat yield. A total of 332 sample households were selected using simple random sampling method for interview and analyzed sing SPSSv20 statistical software. Most of the respondents have adjusted their farming practices to adapt the impacts of variability in rainfall patterns and increasing temperature. Planting drought tolerant and early maturing wheat verities, crop diversification, implementing SWC practices, changing planting date and using other agronomic practices as innovative agricultural decisions were major adaptation strategies used by farmers in response to variable climate. However, farmers were not effective in those adaptation strategies, because most of them have low awareness and less adaptive capacity thus practicing in traditional way in the study area. Therefore, it should be integrated with new innovative technologies to be effective in those adaptation strategies. 96p. Sun, 01 Dec 2019 00:00:00 GMT http://ir.haramaya.edu.et//hru/handle/123456789/3927 2019-12-01T00:00:00Z