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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Kaoutar Doumali and Khalid Ibno Namr
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DOI:10.17265/1934-7391/2018.04.005
Affiliation(s)
Chouaib Doukkali University, Faculty of Science, Department of Geology, BP.20, El Jadida 24000, Morocco
ABSTRACT
The Doukkala-Abda region covers an area of about 13,285 km2 representing 1.87% of
Morocco. The agricultural area is 428,000 ha of which 96,000 ha of large
irrigation schemes, 8,250 ha of private
irrigation in coastal areas and 327,800 ha of rainfed agriculture. The two large irrigation perimeters of
Doukkala are the low-service with an area of 61,000 ha and the high service
with an area of 35,000 ha. Since the implementation of irrigation perimeter
down service Doukkala, he experienced an imbalance both in the ground and
water. At first, the state of the quality of soil Doukkala is not alarming.
However, observation and comparison of test results between soils in different
years seem significant on the evolution of soil quality parameters (organic
matter, Phosphorus olsen, pH and salinity) under intensive farming practices.
Practical measures for rehabilitation and prevention are to be taken
immediately in order to identify these problems and prevent them from
degeneration. The methodology for the realization of this work consists of
sampling, measurements in situ and analysis of soil quality parameters. The analyses reveal that the
soils of Doukkala are poor in organic matter and very rich in phosphorus, with
an alarming rate of salinity evolution comparing the results of different years
which must be taken into account to prevent the problem from occurring spread
and preserve the soil.
KEYWORDS
Low service, imbalance, irrigation, degeneration, quality.
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