A5032191703- Hydrology and Watershed Management Studies
- Land Use and Ecosystem Services
- Water Resources and Management
- Climate variability and models
- Fish Ecology and Management Studies
- Water-Energy-Food Nexus Studies
- Transboundary Water Resource Management
- Water resources management and optimization
- Remote Sensing in Agriculture
- Geophysics and Gravity Measurements
- Water Systems and Optimization
- Environmental Changes in China
- Nanomaterials for catalytic reactions
- Climate change and permafrost
- Adsorption and biosorption for pollutant removal
- Environmental and Agricultural Sciences
- Rangeland Management and Livestock Ecology
- Cryospheric studies and observations
- Hydrology and Drought Analysis
- Ecology and Vegetation Dynamics Studies
- Precipitation Measurement and Analysis
- Irrigation Practices and Water Management
- Moringa oleifera research and applications
- Regional Development and Environment
- Sustainable Urban and Rural Development
University of Gondar
2018-2024
Addis Ababa University
2024
Donghua University
2016-2023
China Institute of Water Resources and Hydropower Research
2019-2020
This study investigated the annual and seasonal rainfall variability at five selected stations of Amhara Regional State, by using innovative trend analysis method (ITAM), Mann-Kendall (MK) Sen’s slope estimator test. The result showed that was increasing in Gondar (Z = 1.69), Motta 0.93), Bahir Dar 0.07) stations. However, trends Dangla −0.37) Adet −0.32) a decreasing trend. As far as monthly are concerned, all exhibited sensitivity change. May, June, July, August, September increasing. on...
Abstract Several catalyst materials composed of tin oxide composites (SnO x ) with a novel coralline structure are synthesized by using facile hydrothermal self‐assembly process. The catalysts then used to prepare SnO /GDL (gas diffusion layer) electrode for CO 2 electroreduction formate in 0.5 m KHCO 3 aqueous solution. Influential factors, such as synthesis temperature ( T )/time (Δ t and the valence state Sn nanocatalysts, on both catalysts’ morphologies, Faradaic efficiency production...
Land use/land cover change and climate have diverse impacts on the water resources of river basins. This study investigated trends land in Nile River Basin. The were analyzed using Mann–Kendall test, Sen’s slope estimator test an innovative trend analysis method. (LULC) was examined Landsat Thematic Mapper (TM) Enhanced (ETM+) with a resolution 30 m during 2012–2022. findings revealed that forestland shrub area decreased by 5.18 2.39%, respectively. On other hand, grassland, cropland,...
The Awash river basin has been the most extensively developed and used in Ethiopia since modern agriculture was introduced. This paper investigated annual precipitation, temperature, discharge variability using innovative trend analysis method (ITAM), Mann–Kendall (MK) test, Sen’s slope estimator test. results showed that of precipitation significantly increasing Fitche (Z = 0.82) Gewane 0.80), whereas Bui 69) slightly decreasing Sekoru 0.45) sharply decreasing. As far as temperature trends...
The Huaihe River Basin is located in-between the north-south climate transitional zone in China and China's important congested area production base.The land-use of environment was occupied by for social economics.This paper aims to have a comprehensive understanding about vegetation evolution basin over past 30 years.In view 5 years (1985, 1990, 2000, 2005, 2014) data remote sensing NDVI, dynamic degree, transfer matrix were used analyze dynamics land use.Spatial overlay study change...
Rational allocation of water resources is very essential to cope with scarcity. The optimal limited required for various purposes achieve sustainable development. Awash River Basin currently faced a scarcity due increasing demands, urbanization, irrigation expansion, and variability climates. excessive abstraction in the basin without proper assessing available contributed This paper aimed develop evaluation planning (WEAP) model allocate supplies demanding sectors based on an economic...
As basic data, the river networks and water resources zones (WRZ) are critical for planning, utilization, development, conservation management of resources. Currently, network WRZ world most obtained based on digital elevation model data automatically, which not accuracy enough, especially in plains. In addition, code is inconsistent with network, hindering efficiency hydrology research. Based global 90-meter DEM combined a large number auxiliary this paper proposed series methods generating...
Mongolia’s Selenga sub-basin of the Lake Baikal basin is spatially extensive, with pronounced environmental gradients driven primarily by precipitation and air temperature on broad scales. Therefore, it an ideal region to examine dynamics climate hydrological system. This study investigated annual precipitation, temperature, river discharge variability at five selected stations using Mann-Kendall (MK), Innovative trend analysis method (ITAM), Sen’s slope estimator test. The result showed...
The upper part of the Huai River basin is spatially extensive, with pronounced environmental gradients driven primarily by precipitation and temperature on broad scales.Therefore, it an ideal region in which to examine climate dynamics region.This study investigates annual time serious variability, at six designated representative stations, using innovative trend analysis method (ITA), Mann-Kendall (MK) Sen's slope test estimator.The result showed that was slightly decreasing Xiangcheng (Z =...
Land-use/land-cover change and climate have changed the spatial–temporal distribution of water resources. The Huai River Basin shows spatial temporal changes from 1960 to 2016 land-use/land-cover 1995 2014. Thus, this study aims investigate change, land use, vegetation evolution in Upper Basin. Mann–Kendall test (MK), Innovative Trend Analysis Method (ITAM), Sen’s slope estimator were used detect trends. was also examined using a transformation matrix Normalized Difference Vegetation Index...
Moringa is a multipurpose tree with considerable economic and social potential its cultivation currently being actively promoted in many developing countries. Seeds of this tropical contain water-soluble, positively charged proteins that act as an effective coagulant for water wastewater treatment. This study evaluated the effectiveness oleifera stenopetala seed powder purification replacement coagulant. Water treatment M. was found to be more than seed. Indeed, it has been given little...
The Ugii Nuur Lake is not only one of the small hydrologically closed lakes located in Orkhon River Basin Central Mongolia but also most vulnerable area for global climate change. Therefore, this study aims to investigate impacts recent change on water surface area. data we analyzed were various measured hydro-meteorological variables lake basin and area, which was estimated from Landsat series satellite 1986 2018. methods used Mann-Kendall (MK), Innovative trend analysis method (ITAM),...
In a context of climate change, precipitation patterns show substantial disturbances and the occurrence anomalies has tended to increase in Huang-Huai-Hai River Basin. These are likely influencing vegetation dynamics ecosystem stability. This paper aims have comprehensive understanding growth response towards pattern The study used NDVI (Normalized Difference Vegetation Index) data mapped datasets from 1982 2011. similar spatial distribution: they decrease southeast coast northwest inland....
This study developed variable selection methods to forecast urban water demand of Gondar town. Seven are adopted develop appropriate forecasting model. Multiple linear regression analysis was used investigate in identifying the optimal predictor for developing The results showed that PCA played a big role identify influential variables modeling better way as compared other statistical methods. We three models area. selected Model 1 since gives accurate 2 and 3.
Projecting future changes of streamflow in the Abby River Basin (ARB) is important for planning and proper management basin system. The current study conducted five stations Abbay river basin, investigated annual temperature, precipitation, discharge variability using Innovative trend analysis method, Mann-Kendall, Sen's slope test estimator. result showed a slightly increasing precipitation Assoa (Z = 0.71), Bahir Dar 0.13), Gonder 0.26) stations, while significant was observed Nedgo 2.45)...
The Tuul River Basin is the most important socioeconomic and political base area of Mongolia. Therefore, studying interrelationships between changes in ecohydrological processes this basin its land cover great importance for maintaining sustainability environment. This study investigated annual average air temperature, total precipitation, river discharge variability, at selected stations by using hydrometeorological analysis, satellite determination statistical analysis. During period,...
Natural landscape aesthetic is the natural resource that essential for maintaining mental and physical health of humans.Therefore, a source human life.The aim this study was to assess Uvs province, Mongolia, using combination spatial multi-criteria decision-making method (MCDM) analytic hierarchy process (AHP) based on Boolean fuzzy logic.Ten different criteria were used analysis.We developed assessment tier province evaluate each beauty indicator in five stages.The result shows 13.2% area...
The Abbay River Basin, which originates in Ethiopia, is a major tributary and main source of the Nile Basin. Land cover vegetation Basin highly susceptible to climate change. This study was conducted investigate trends change for period thirty-six years (1980–2016) within selected stations basin by using innovative trend analysis method, Mann–Kendall test, Sen’s slope estimator test mean annual precipitation temperature variables. Changes land were studied thirteen (2001–2013) remote...
The present study attempted to investigate the trends of mean annual temperature, precipitation, and streamflow changes determine their relationships in upper Huai river basin. Mann–Kendall (MK), Sen’s slope test estimator, innovative trend detection ( ф ) (ITA) methods were used detect trends. According findings, average precipitation shows a descending = −0.17) most stations. An increasing was found only Fuyang station 1.02). In all stations, temperature 0.36) abruptly increased. During...
Organic and inorganic pollutants often coexist in water bodies due to the influxes of from various pollution sources. The use waste-derived adsorbents remove is an economical efficient method wastewater treatment. present study was designed investigate adsorption cosorption Zn methylene blue (MB) on a capsicum straw derived activated carbon (CSAC), by determining equilibrium isotherms simulation. result showed that Langmuir equation more suitable for description Zn2+ MB than Freundlich...
<title>Abstract</title> This study aims to investigate the potential water savings achieved through implementing deficit irrigation (DI) combined with mulching in Nile Basin countries. The analyzes effects of blue consumption and footprint (WF) on various crops basin We utilized AquaCrop-OS model evaluate crop use dominant crops. Changes (CWU) varied between countries crops, ranging from − 34% -1%. Yield simulations, some decreases increases compared reference (R). exhibited relative changes...
Abstract. More and more high-resolution data sets are simulated worldwide used in various research. However, addition to the improvement accuracy, practical significance of spatial distribution must also be considered. Considering that most accurate water withdrawal mainly provided by state, is concentrated on artificial surface cultivated land. Whenever possible, using published regional or national governments interpolating extending them specific land uses will maximize accuracy. Based...