26 documents found, page 1 of 3
Water use, soil water balance and soil salinization risks of Mediterranean tree...
Ramos, Tiago B.; Darouich, Hanaa; Oliveira, Ana R.; Farzamian, Mohammad; Monteiro, Tomás; Castanheira, Nádia; Paz, Ana; Alexandre, CarlosSecondary salinization has long been reported in the Roxo irrigation district (RID), southern Portugal, due to the use of saline-prone irrigation water and the existence of poorly structured soils. This study assessed the soil water and salt budgets in nine commercial orchards located in the RID using the multiple ion chemistry module available in the HYDRUS-1D model during the 2019 and 2020 growing seasons. Th...
Mulching effects on soil evaporation, crop evapotranspiration and crop coeffici...
Ramos, Tiago B.; Darouich, Hanaa; Pereira, Luis S.Mulching is a widely adopted agronomic practice, often used as a water-saving strategy due to its effectiveness in reduc- ing soil evaporation. However, effects vary depending on the materials used and the extent of mulch soil coverage. Consequently, the impacts of mulching may differ considerably across production systems, preventing the establishment of reliable guidelines for irrigation water management. The...
Assessing the Impact of IrrigaSys Decision Support System on Farmers’ Irrigatio...
Darouich, Hanaa; Simionesei, Lucian; Oliveira, Ana R.; Neves, Ramiro; Ramos, Tiago B.The IrrigaSys decision support system (DSS) has supported farmers’ decision-making regarding irrigation scheduling in the Sorraia Valley irrigation district in Southern Portugal over a span of six years (2017–2022). This study aims to conduct a postevaluation of farmers’ adherence to the DSS, employing a multicriteria analysis (MCA) approach with data from the 2019 (driest year) and 2020 (average year) growing ...
Development and functional evaluation of pedotransfer functions for estimating ...
Ramos, Tiago B.; Darouich, Hanaa; Gonçalves, Maria C.Accurate knowledge of soil hydraulic properties is essential for effectively simulating soil water dynamics in field plots. However, determining these properties directly can be challenging, especially when a large amount of data is required. Therefore, the primary objective of this study was to develop four hierarchical pedotransfer functions (PTFs) to estimate the soil hydraulic parameters of the Mualem-van G...
Setting irrigation thresholds for building a platform aimed at the improved man...
Darouich, Hanaa; Karfoul, Razan; Ramos, Tiago B.; Pereira, Luís S.Citrus is one of the most valuable crops in Syria, with the largest production areas being in the coastal provinces of Tartus and Latakia, where this study was performed. A companion paper reported on the basal crop coefficients derived from the field water balance and on the performance assessment of various irrigation methods used in a citrus orchard located in the same region. That study evidenced the need f...
Water use, soil water balance and soil salinization risks of Mediterranean tree...
Ramos, Tiago B.; Darouich, Hanaa; Oliveira, Ana R.; Mohammad, Farzamian; Monteiro, Tomás; Castanheira, Nádia; Paz, Ana; Alexandre, CarlosSecondary salinization has long been reported in the Roxo irrigation district (RID), southern Portugal, due to the use of saline-prone irrigation water and the existence of poorly structured soils. This study assessed the soil water and salt budgets in nine commercial orchards located in the RID using the multiple ion chemistry module available in the HYDRUS-1D model during the 2019 and 2020 growing seasons. Th...
Water use and soil water balance of Mediterranean tree crops assessed with the ...
Ramos, Tiago B.; Darouich, Hanaa; Oliveira, Ana R.; Farzamian, Mohammad; Monteiro, Tomás; Castanheira, Nádia; Paz, Ana; Gonçalves, Maria C.Orchards consist of complex agricultural systems, with a variety of characteristics (planting density, tree height, training system, canopy cover, irrigation method, interrow management) influencing crop evapotranspiration (ETc). Thus, irrigation water management requires finding crop coefficients (Kc) that represent the characteristics of local orchards, evidencing the need for site specific data. The main obj...
Field-scale assessment of soil water dynamics using distributed modeling and el...
Ramos, Tiago B.; Oliveira, Ana R.; Darouich, Hanaa; Gonçalves, Maria C.; Martínez-Moreno, Francisco J.; Rodríguez, Mario Ramos; Vanderlinden, KarlKnowledge of the soil water balance is fundamental for improving crop water use in agricultural fields. Estimates are normally for representative and homogeneous areas where the variability of soil properties is neglected. However, this variability significantly impacts soil water dynamics at the field scale. In this study, the MOHIDLand distributed process-based model was used to compute the spatially explicit...
Setting Irrigation Thresholds for Building a Platform Aimed at the Improved Man...
Darouich, Hanaa; Karfoul, Razan; Ramos, Tiago B.; Pereira, Luís S.Citrus is one of the most valuable crops in Syria, with the largest production areas being in the coastal provinces of Tartus and Latakia, where this study was performed. A companion paper reported on the basal crop coefficients derived from the field water balance and on the performance assessment of various irrigation methods used in a citrus orchard located in the same region. That study evidenced the need f...
Assessing spatial variability and trends of droughts in Eastern Algeria using S...
Merabti, Abdelaaziz; Darouich, Hanaa; Paredes, Paula; Meddi, Mohamed; Pereira, L.S.Drought is one of the most severe natural disasters worldwide, but with a particular emphasis in sub-humid and semi-arid climates. Several indices have been created to appropriately identify drought’s characteristics and variability. The main objectives of this study consisted of analyzing the behavior of different indices applied in northeast Algeria and comparing them across a long-term data set (1961–2014). ...