Land suitability and surface water resources potential for irrigation in Becho Plain, upper Awash basin, Ethiopia *

2021 ◽  
Author(s):  
Berhanu Gadissa Gonfa ◽  
Samuel Dagalo Hatiye ◽  
Mekuanent Muluneh Finssa
Keyword(s):  
Surface Water ◽  
Water Resources ◽  
Land Suitability ◽  
Surface Water Resources

scholarly journals Assessment of a Large Subsurface Controlled Drainage and Irrigation System: III. Water chemistry of the tile effluent and its potential impact on surface water resources

2010 ◽  
Vol 44-45 (2010-2011) ◽  
pp. 11-17
Author(s):  
Michael Aide ◽  
Indi Braden ◽  
Neil Hermann ◽  
David Mauk ◽  
Wesley Mueller ◽  
...  
Keyword(s):  
Surface Water ◽  
Water Resources ◽  
Irrigation System ◽  
Subsurface Drainage ◽  
Soil Conditions ◽  
Soil Nitrate ◽  
Controlled Drainage ◽  
Surface Water Resources ◽  
Nitrate N ◽  
Nitrate Concentrations

Abstract Controlled subsurface drainage irrigation systems promote crop productivity; however, these land management systems also allow an efficient pathway for the transport of elements from soils to surface water resources. The nitrate and macro-element effluent concentrations from tile-drainage involving a 40 ha controlled subsurface drainage irrigation system are described and compared to soil nitrate availability. Soil nitrate concentrations generally show an increase immediately after soil nitrogen fertilization practices and are sufficiently abundant to promote their transport from the soil resource to the tile-drain effluent waters. The data indicates that: (1) the transport of nitrate-N in tile-drain effluent waters is appreciable; (2) denitrification pathways effectively reduce a portion of the soil nitrate-N when the controlled drainage system establishes winter-early spring anoxic soil conditions, and (3) the best strategy for reducing nitrate-N concentrations in tile-drain effluent waters is adjusting N fertilization rates and the timing of their application. The development of bioreactors for simulating wetland conditions may further limit nitrate concentrations in surface waters because of soil drainage.

Evaluating quality of surface water resources by ANN and ANFIS networks using Sentinel-2 satellite data

2022 ◽  
Author(s):  
Mostafa Kabolizadeh ◽  
Kazem Rangzan ◽  
Sajad Zareie ◽  
Mohsen Rashidian ◽  
Hossein Delfan
Keyword(s):  
Surface Water ◽  
Water Resources ◽  
Satellite Data ◽  
Surface Water Resources ◽  
Sentinel 2

Contribution of urbanization and climate variability on surface water depletion across USA watersheds

2021 ◽  
Author(s):  
Serena Ceola ◽  
Irene Palazzoli
Keyword(s):  
Remote Sensing ◽  
Surface Water ◽  
Water Resources ◽  
Climate Variability ◽  
Water Loss ◽  
The United States ◽  
Future Climate Change ◽  
Integrated Analysis ◽  
World Population ◽  
Surface Water Resources

<p>Surface water resources are extremely vulnerable to climate variability and are seriously threatened by human activities. The depletion of surface water is expected to rapidly increase due to the combination of future climate change and world population growth projections. Under this scenario, the impacts of climate and human dynamics on surface water resources represent a global issue, requiring the definition of adequate management strategies that prevent water crisis and guarantee equitable access to freshwater resources. Remote sensing provides data that allow to monitor environmental change processes, such as changes in climatic conditions, land use, and spatial allocation of human settlements and activities. Although many products describing surface water dynamics and urban growth obtained from satellite imagery are available, an integrated analysis of such geospatial information has not been performed yet. Here, we explore the driving role of the variation in key climatic variables (e.g.,  precipitation, temperature, and soil moisture) and the extent of urban areas in the depletion of surface water across the watersheds in the United States by using data derived from remote sensing images and performing a correlation analysis. From our preliminary results, we observe that there is a positive correlation between surface water loss and the level of urbanization in each basin of our study area, meaning that surface water loss increases with the extent of urban area. On the contrary, we find that the correlation between surface water loss and precipitation has a counter-intuitive trend which needs to be further examined.</p>

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