varieties creation and conservation of plant genetic resources

Figure 23 : Web Portal
for the consultation of the
cultivated soil fertility map in
Morocco
INRA 2010
42
Activity Report
ENVIRONMENT AND NATURAL RESOURCES
This mapping will help to guide
reasoned use of fertilizer for a better
crops fertilization and the development
of regional mean forms of fertilization
for major crops. The first fertility
maps are available on the computer
(Figure 23). They concern the regions
of Gharb - Chrarda, Rabat - Salé -
Zemmour - Zaer, Chaouia - Ouardigha
and Meknes - Tafilalet. To realize
these maps, about 8000 soil analysis
were conducted. A training program
on Geographical Information Systems
and GPS was conducted for the benefit
of managers and technicians involved
in the convention.
GLOBAL EVALUATION OF
THE ARID RANGELAND
DESERTIFICATION IN
MOROCCO
The analysis of arid rangeland
desertification in Morocco by satellite
imagery shows that 82% of arid area
is occupied by rangeland which is
essentially dominated by classes: bare
soil, herbaceous vegetation, deciduous
shrub vegetation and Savannah mosaic
/ shrub or forest (Figure 24). The
establishment of a global monitoring
system based on space remote sensing,
biophysical and socio-economic
(expert classification)
Figure 24 : Occupation of rangeland soil
by pastoral zone (in 1000 ha) in Moroccan
dry area
data is undertaken by INRA to provide
decision-makers with a suitable and
operational tool of the temporal and
spatial monitoring of desertification
(Figure 25).
Figure 25 : The land cover situation in the
Oriental by the expert classification (Mahyou
et al., 2010).
Data Sources: MARA (19) and Globcover
for North Africa (14).
MC: Coastal Meseta, MPC: the Mamora
area and Central Plateau, RB: Rif area and
its borders, MA: the Middle Atlas, ANP:
north Atlas plateau and Plains, HAC: High
Central Atlas and Oriental, ZA: Zone of
Argan tree, ZS: Sahelian Zone, SPS: pre-
Saharan Areas, POM: plateau of the Oriental
and the Moulouya Valley.