Search

Your search keyword '"Boulli, Abdelali"' showing total 28 results
Start Over Author "Boulli, Abdelali"
28 results on '"Boulli, Abdelali"'

19. Multi-year agro-economic modelling for predicting changes in irrigation water management indicators in the Tadla sub-basin

Author

Lionboui, Hayat, Benabdelouahab, Tarik, Elame, Fouad, Hasib, Aziz, and Boulli, Abdelali

Subjects
water resources management, agricultural profit, Agricultural Territorial Unit, Resource /Energy Economics and Policy, Agro-economic modelling, water shadow price, Tadla Sub-Basin, water access
Abstract

The irrational use of irrigation water resources is a major constraint to agricultural development in the watersheds of Morocco, including the Tadla sub-basin. It is essential for these areas to have effective instruments for managing and organizing the control and distribution of water resources and to ensure their protection and conservation. Within this context, this study focused on the Tadla sub-basin, where there has been a marked decrease in the supply of irrigation water. Using a dynamic agro-economic model called ‘TADMOD’ (for TADla Basin MODel), which classifies agricultural units according to their different sources of irrigation water, the study’s main purpose was to analyse the interannual variations in selected irrigation water management indicators. One of the most important indicators studied here was irrigation water shadow price between 2011 and 2020. The results of the analysis revealed important differences in this indicator value among the observed agricultural units. Its average value, calculated by TADMOD, was about 1.33 MAD4 (Moroccan Dirham) per cubic metre of water. The model showed that, over the ten simulated years, reduced water supplies in the Tadla sub-basin would lead to an increase of 33.2%, on average, in the irrigation water shadow price and to a decline in the cultivated area and total consumption of irrigation water. The reduction in the cultivated area would lead to a slight fall in valueadded, estimated at 3,180.78 million MAD per year in 2010-11, the first year of simulation.

Published
2016
Full Text
View/download PDF

20. Analysis of Farms Performance Using Different Sources of Irrigation Water: A Case Study in a Semi-Arid Area

Author

Lionboui, Hayat, Benabdelouahab, Tarik, Hasib, Aziz, and Boulli, Abdelali

Subjects
Productivity Analysis, Morocco, Agricultural and Food Policy, Water valuation, Source of irrigation water, Farm efficiency, Crop Production/Industries, Irrigated perimeter of Tadla
Abstract

Improving production efficiency is the main objective of government action to avoid efficiency losses and to increase the income of farmers. The aim of this study was to analyze performance levels of farms in the irrigated perimeter of Tadla in Morocco, according to the source of irrigation water. Thus, technical, allocative and economic efficiency were analyzed for farms in this area. To estimate the efficiency indices, the approach adopted is based on Data Envelopment Analysis method. Sixty samples of farms were chosen according to the mode of access to irrigation water. The results showed significant variability in technical, allocative and economic efficiency be- tween the observed farms. The source of irrigation water is an important determinant of farm performance in the Tadla region. Thus, the average of economic efficiency varies between 45% and 83% according to the source of irrigation water. In terms of water valuation, farms that use only groundwater achieve a better value of irrigation water (2.19 MAD 1 /m 3 ) in comparison with those that combine between surface and groundwater and those which are limited to the use of surface water.

Published
2016
Full Text
View/download PDF

21. Estimating the Economic Impact of Climate Change on Agricultural Water Management Indicators.

Author

Lionboui, Hayat, Benabdelouahab, Tarik, Elame, Fouad, Hasib, Aziz, and Boulli, Abdelali

Subjects
CLIMATE change, AGRICULTURAL water supply, WATER management, IRRIGATION, AGRICULTURE
Abstract

Climate change has been strongly dealt with in the literature on the economy in recent decades. In many semi-arid regions of the world, issues related to climate change including the scarcity of water resources are crucial for consideration in overcoming obstacles to development. The value of water increases and presents itself as a quantitative and qualitative constraint to its domestic, industrial and, particularly, agricultural use. Given the multi-dimensional and multi-scalar nature of climate change, this research proposes an integrated agronomic, economic and hydrologic modelling for the Tadla sub-basin in Morocco to assess the potential economic impacts of climate change on agricultural water management in this region. This tool permits to predict inter-annual variations of selected socio-economic water management indicators from 2014 to 2050. The simulated climate scenarios include the RCP (Representative Concentration Pathway) 4.5 and RCP 8.5 scenario, taking into account the main crops, water resources and the socio-economic context of the study area. The results show that climate change can have an impact in reducing the total agricultural profit calculated across the Tadla sub-basin (by about -0.34% and -0.44% each year according to RCP 4.5 and RCP 8.5 climate scenarios, respectively) and in increasing irrigation water shadow price progressively. Overall, this research helps to improve understanding of the potential economic impact of climate change and to guide stakeholders in their choices in terms of future adaptation policies. [ABSTRACT FROM AUTHOR]

Published
2018

22. Variabilité morphologique des graines de cinq populations marocaines de pin d'Alep (Pinus halepensis Mill.)

Author

Boulli, Abdelali, Pichot, Christian, Baaziz, Mohamed, M'Hirit, Omar, ProdInra, Migration, Université Moulay Ismail (UMI), Unité de Recherches Forestières Méditerranéennes (URFM), Institut National de la Recherche Agronomique (INRA), Université Cadi Ayyad [Marrakech] (UCA), Direction du Développement forestier, and Partenaires INRAE

Subjects
[SDV] Life Sciences [q-bio], VARIABILITE MORPHOLOGIQUE, [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS, PIN D'ALEP
Abstract

National audience

Published
2003

28. Biofertilizer and biostimulant potentials of phosphate-solubilizing Bacillus subtilis subsp. subtilis M1 strain and silicon in improving low phosphorus availability tolerance in rosemary.

Author

Msaad H, Lamsaadi N, Farssi O, Oubenali A, Lahmaoui S, Boulli A, Ghoulam C, El Moukhtari A, and Farissi M

Subjects
Plant Roots microbiology, Plant Roots metabolism, Antioxidants metabolism, Rosmarinus chemistry, Bacillus subtilis metabolism, Bacillus subtilis growth & development, Phosphorus metabolism, Phosphates metabolism, Fertilizers analysis, Silicon pharmacology, Silicon metabolism
Abstract

The present study aimed to evaluate the single and combined effects of Si exogenous treatment and Bacillus subtilis subsp. subtilis M1 strain inoculation on rosemary tolerance to low phosphorus (P) availability. Hence, rosemary plants were fertilized with 250 µmol Ca3HPO4 (stressed plants) or 250 µmol KH2PO4 (control plants) under Si treatment and B. subtilis M1 strain inoculation. P starvation negatively affected rosemary growth and its P nutrition. However, exogenous Si supply or B. subtilis M1 strain inoculation significantly (P < 0.001) alleviated the deficiency-induced effects and significantly improved rhizogenesis, acid phosphatase activity, P uptake, and eventually dry weight of shoot and root. Moreover, Si-treatment and/or B. subtilis M1 strain inoculation significantly (P < 0.001) reduced the oxidative damage, in terms of malondialdehyde and hydrogen peroxide accumulation. This was found positively correlated with the higher superoxide dismutase activity, and the elevated non-enzymatic antioxidant molecules accumulation, including total polyphenols in Si-treated and inoculated P-deficient plants. Taken together, Si supplementation and/or B. subtilis M1 strain inoculation could be a good strategy to sustain rosemary plant growth under P starvation conditions., (© The Author(s) 2024. Published by Oxford University Press on behalf of Applied Microbiology International.)

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results