Results 21 to 30 of about 136,083 (308)

Developing a geomorphological instantaneous unit hydrograph (GIUH) using equivalent Horton-Strahler ratios for flash flood predictions in arid regions

open access: yesGeomatics, Natural Hazards & Risk, 2020
The Horton-Strahler ratios are important to describe the stream network and to identify the hydrologic response of a basin using the GIUH concept. These ratios are often sensitive to the selected threshold area for the extraction of the stream network ...
Sameer Bamufleh   +3 more
doaj   +1 more source

California's Central Valley Groundwater Wells Run Dry During Recent Drought

open access: yesEarth's Future, 2020
Declining water tables are causing wells to run dry in California, but the prevalence and spatial distribution of wells that have run dry are not known beyond anecdotal and voluntary reports. Here, we apply a new, simple, and measurement‐driven method to
Scott Jasechko, Debra Perrone
doaj   +1 more source

Simulating solute transport in an aggregated soil with the dual-porosity model: measured and optimized parameter values [PDF]

open access: yes, 1994
The capability of the first-order, dual-porosity model, which explicitly accounts for non-ideal transport caused by the presence of ‘immobile’ water, to predict the non-ideal transport of non-sorbing solute in a constructed aggregated soil has been ...
Augustijn, D.   +3 more
core   +7 more sources

Effect of Biochar Application and Re-Application on Soil Bulk Density, Porosity, Saturated Hydraulic Conductivity, Water Content and Soil Water Availability in a Silty Loam Haplic Luvisol

open access: yesAgronomy, 2020
Due to climate change the productive agricultural sectors have started to face various challenges, such as soil drought. Biochar is studied as a promising soil amendment. We studied the effect of a former biochar application (in 2014) and re-application (
Lucia Toková   +3 more
doaj   +1 more source

Identification and Evaluation of Potential Floodplain Areas Using the Floodplain Evaluation Matrix - Romanian Case Study. [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2021
A large number of floodplains got lost due to settlements, infrastructure and agriculture. The reconnection of floodplains plays a significant role considering water retention potential and other aspects such as biodiversity conservation, improvement of ...
Daniela SÂRBU   +5 more
doaj   +1 more source

Seasonal surface drainage of sloping farmland : a review of its hydrogeomorphic impacts [PDF]

open access: yes, 2015
The combination of runoff-generating areas (saturated soils) and overland flow concentration in features such as drainage ditches makes sloping farmland vulnerable to soil erosion.
Alt   +67 more
core   +2 more sources

Estimating evapotranspiration using neural networks and genetic algorithms (case study:Tabriz station) [PDF]

open access: yesنشریه جغرافیا و برنامه‌ریزی, 2019
Evaporation is one of the important factors in the hydrological cycle and is one of the determinants of energy equilibrium at ground level and water balance, which is required in various areas such as hydrology, hydrology, agriculture, forest management,
Ali Mohammad Khrshieddoust   +2 more
doaj  

Water reuse for irrigated agriculture in Jordan: challenges of soil sustainability and the role of management strategies [PDF]

open access: yes, 2010
Reclaimed water provides an important contribution to the water balance in water-scarce Jordan, but the quality of this water presents both benefits and challenges. Careful management of reclaimed water is required to maximize the nutrient benefits while
Carr G.   +7 more
core   +1 more source

Water quality assessment of streams and rivers for irrigation in Southern Continental Patagonia

open access: yesRevista de la Facultad de Ciencias Agrarias
This work aimed to analyze and classify the suitability of freshwater sources for irrigation in three large hydrographic regions of Southern Continental Patagonia: Coyle, Serrano, and Gallegos.
Boris G. Diaz   +6 more
doaj   +1 more source

Water balance components of the potential agricultural grabens along the Rift Valley in northern Ethiopia [PDF]

open access: yes, 2019
Region: Ethiopia's Rift Valley. Focus: matching agricultural water demand and supply is a growing policy challenge in drylands. We investigated the water balance components in Raya (3507 km(2)) and Ashenge (80.5 km(2)) grabens. The rainfall depth, river
Annys, Sofie   +12 more
core   +3 more sources

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