Results 81 to 90 of about 10,876,993 (375)

Assessing the Sustainability of Community‐Managed Irrigation Systems Using Multicriteria Analysis and Sustainability Indicators in Northern Ethiopia: A Holistic Approach

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Reservoir‐based irrigation schemes (RBISs) have been developed to minimize the adverse effects of moisture stress and improve the livelihoods of smallholder farmers in semi‐arid regions. However, many RBISs perform below expectations. A multistage expert elicitation approach and an indicator‐based Sustainability Assessment of Food and ...
Gebremeskel Teklay Berhe   +4 more
wiley   +1 more source

Development and Testing of a Low‐Cost Soil Moisture Sensor for Real‐Time Irrigation Scheduling

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Effective irrigation scheduling is essential for improved water management in irrigated areas, with soil moisture monitoring recognized as one of the most effective methods. However, challenges such as the high cost of sensors and the difficulties in monitoring large areas hinder their practical application, particularly for smallholder ...
Edmealem Temesgen Ebstu   +9 more
wiley   +1 more source

A global comparison of four potential evapotranspiration equations and their relevance to stream flow modelling in semi-arid environments [PDF]

open access: yesAdvances in Geosciences, 2008
This study compares four different potential evapotranspiration equations according to Priestley Taylor, Kimberly Penman, Penman Monteith (FAO-56) and Hargreaves on a global basis to demonstrate their difference, and assess their impact on the ...
M. Weiß, L. Menzel
doaj  

Estimation of Environmental Quality Based on Ecometric Climatic Indicators (on the Example of the Republic of Moldova)

open access: yesPresent Environment and Sustainable Development, 2018
Aridity in new climatic conditions requires indexes which could adequately explain this process. All the more so, the quantities of atmospheric precipitations also continue to increase on the background of the temperatures increase in the conditions of ...
Duca Gh.   +2 more
doaj   +1 more source

Spatiotemporal Variation of Actual Evapotranspiration and Its Relationship with Precipitation in Northern China under Global Warming

open access: yesRemote Sensing, 2022
The analysis of actual evapotranspiration (ETa) changes is of great significance for the utilization and allocation of water resources. In this study, ETa variability in northern China (aridity index < 0.65) is investigated based on the average of seven ...
Tao Su   +9 more
doaj   +1 more source

Estimation of weekly potential evapotranspiration

open access: yesMAUSAM, 1984
Weekly potel1tial evapotranspiration is estimated by four different methods- (A) Interpolation of monthly values estimated by modified Penman formula, (B) Estimation by modified Penman formula with weekly meteorological normals and measured net solar radiation as input data, (C) Computed following the method given by Doorenbos and Pruitt (1975) and (D)
N. N. KHAMBETE, B. C. BISWAS
openaire   +2 more sources

Ensemble evaluation of hydrological model hypotheses [PDF]

open access: yes, 2010
It is demonstrated for the first time how model parameter, structural and data uncertainties can be accounted for explicitly and simultaneously within the Generalized Likelihood Uncertainty Estimation (GLUE) methodology.
Abrahart   +67 more
core   +2 more sources

Management Strategies and Agricultural Calendars for Forage Production in Semi‐Arid Brazil Using AquaCrop

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Forage production in semi‐arid regions of Brazil is limited by water deficit. This study aimed to identify the most adapted and efficient production systems and define their agricultural calendars for the semi‐arid region of Brazil. Twenty‐nine production arrangements that included different cropping conditions, plant density, plant cycles ...
Antonio Gebson Pinheiro   +15 more
wiley   +1 more source

Investigating the Effect of Distribution Function and Potential Evapotranspiration Assessment Method in Determining Reconnaissance Drought Index [PDF]

open access: yesعلوم و مهندسی آبیاری, 1970
Iran is located in arid and semi-arid regions in the world and therefore, drought monitoring has an important role in there. Drought assessment is conventionally based on drought indices such as Reconnaissance Drought Index (RDI).
Hosein Rezaee   +3 more
doaj   +1 more source

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