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J. M. Gonçalves
University of Lisbon
35Publications
12H-index
448Citations
Publications 38
Newest
#2Bruno AreiasH-Index: 2
Last.João GonçalvesH-Index: 35
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Source
#1Qingfeng MiaoH-Index: 3
#2Haibin ShiH-Index: 3
Last.Luis S. PereiraH-Index: 54
view all 4 authors...
The sustainability of the Hetao Irrigation System, located in the water scarce upper Yellow River basin, is a priority considering the need for water saving, increased water productivity, and higher farmers’ incomes. The upgrading of basin irrigation, the main irrigation method, is essential and includes the adoption of precise land levelling, cut-off management, improved water distribution uniformity, and adequate irrigation scheduling. With this objective, the current study focuses on upgradin...
4 CitationsSource
#1Luísa Costa SousaH-Index: 11
#2Bruno AreiasH-Index: 2
Last.J. M. GonçalvesH-Index: 12
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#1Qingfeng Miao (Inner Mongolia Agricultural University)H-Index: 3
#2Haibin Shi (Inner Mongolia Agricultural University)H-Index: 3
Last.Luis S. Pereira (University of Lisbon)H-Index: 54
view all 4 authors...
Water resources management in the Yellow River basin, China, is facing a paradigmatic change in consequence of an unbalanced supply and demand due to an increased demand for water from non-agricultural sectors and a reduced supply due to climate change that reduced precipitation and increased climatic demand. The problem is aggravated by low equity of spatial water allocation in the basin. A supply reduction in the upstream basin area aims to control the water scarcity conditions occurring in th...
Source
#1J. M. Gonçalves (University of Lisbon)H-Index: 12
#2Isabel Pedroso de Lima (UC: University of Coimbra)H-Index: 1
The increasing pressure on water resources is due to continuously growing consumption, which itself results from demographic and economic developments and the effect of expected climate change. Therefore, action to encourage the more efficient and productive use of water is urgent. Water management needs to focus on regulating the use of this limited resource by multiple users; the allocation of water to non-agricultural users, in particular, is increasing steadily. Moreover, increased variabili...
Source
#1Hanaa DarouichH-Index: 3
#2M.R. CameiraH-Index: 12
Last.Luis S. PereiraH-Index: 54
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Coping with water scarcity using supplemental irrigation of wheat (Triticum aestivum L.) in the semi-arid northeast Syria is a great challenge for sustainable water use in agriculture. Graded borders and set sprinkler systems were compared using multi-criteria analysis. Alternative solutions for surface irrigation and for sprinkler systems were developed with the SADREG and the PROASPER design models, respectively. For each alternative, two deficit irrigation strategies were considered, which we...
4 CitationsSource
#1Daniele MasseroniH-Index: 9
#2Sandra RicartH-Index: 2
Last.Claudio GandolfiH-Index: 14
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Traditionally, most irrigation practices in Southern Europe have been based on gravity-fed surface irrigation systems. Currently, these systems remain a relevant typology in the European Union (EU) member states of the Mediterranean areas, where it is often the only sustainable method for farmers due to the small size of agricultural holdings, their reduced capacity and readiness to invest and the low ratio between yield profits and irrigation costs. In the last several years, in response to Eur...
10 CitationsSource
#1Qingfeng Miao (Inner Mongolia Agricultural University)H-Index: 3
#2Ricardo D. Rosa (University of Lisbon)H-Index: 7
Last.Luis S. Pereira (University of Lisbon)H-Index: 54
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Intercropping is commonly used in the Hetao irrigation district, upper Yellow River basin, where the main crops are wheat, maize and sunflower. For a better use of land, water, radiation energy, and nutrients, spring wheat is traditionally intercropped with maize (W–M) and, more recently, with sunflower (W–S). Considering the need to reduce diversions of water for irrigation in Hetao, this study aims to assess crop water use of W–M and W–S intercropping systems in comparison to the same crops in...
22 CitationsSource
#1Qingfeng Miao (Inner Mongolia Agricultural University)H-Index: 3
#2Haibin Shi (Inner Mongolia Agricultural University)H-Index: 3
Last.Luis S. Pereira (University of Lisbon)H-Index: 54
view all 4 authors...
Water-saving irrigation needs to be implemented in Hetao irrigation district to help satisfying the demand by other users in the Yellow River basin. Aiming at assessing the potential irrigation performance and water saving at farm level, a set of traditional basins and another of precision-levelled basins cropped with maize, wheat and sunflower and managed by farmers were evaluated. Data were collected to characterise the basin sizes, microtopography, inflow rates, advance and recession times, c...
13 CitationsSource
#1Hanaa Darouich (Technical University of Lisbon)H-Index: 3
#2Celestina M. G. Pedras (Technical University of Lisbon)H-Index: 3
Last.Luis S. Pereira (Technical University of Lisbon)H-Index: 54
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This study explores the use of drip and surface irrigation decision support systems to select among furrow, border and drip irrigation systems for cotton, considering water saving and economic priorities. Data refers to farm field observations in Northeast of Syria. Simulation of drip irrigation was performed with MIRRIG model for various alternatives: double and single row per lateral, emitter spacing of 0.5 and 0.7 m, six alternative pipe layouts and five self-compensating and non-compensating...
13 CitationsSource
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