Map of the website
The contents of the site have been divided into two parts
PART 1
Part
1
is
made
of
several
tabs
and
sub-tabs.
Each
of
them
is
dedicated
to
a
specific
theme
related
to
the
building
of the GIS and the ecosystem of the Inner Delta of the Niger river, in the Republic of Mali.
INTRODUCTION
The authors (p.30)
The history of the project (p.31)
VEGETATION
Methodology used for ground studies and data processing (p.32)
The structure of the GIS (part 1): spatial data (p.33)
The structure of the GIS (part 2): thematic data( (p.34)
Vegetal associations (p.35)
Flora (p.36)
ECOLOGY
Ecological data (p.37)
Soils (p.38)
The relationship between the flood and vegetal associations (p.39)
FLOODING
The internal waterway network within the inner Delta (p.40)
Floodable areas (p.41)
The 3-D model for flooded areas (p.42)
Analysis of the model for a 6.60m flood (p.43)
Analysis of the model for a 6.21m flood (p.44)
Analysis of the model for a 5.97m flood (p.45)
Analysis of the model for a 5.10m flood (p.46)
Analysis of the model for a 4.40m flood (p.47)
Vegetal landscapes and hydrological basins (p.48)
Conclusion (p.49)
TOWARDS A DIGITAL ELEVATION MODEL?
Methodological suggestions (p.50)
Each
theme
includes
a
scientific
summary
and
maps.
The
original
data
and
the
layers
of
spatial
information provided by the ARC GIS 9.3 software are available for downloading
PART 2
This
second
part
has
been
approached
differently
from
the
first
one;
each
tab
is
dedicated
to
one
theme
and
shows
a
detailed
plan.
The
full
contents
for
each
theme
can
be
downloaded
as
a
pdf
document
(text
and
maps)
and
an ARC GIS geodatabase (GIS Files)
Populations and their territories (p.51)
Flooded rice cultures (1952, 1975, 1989, 2015) in relation with soil and flooding (p.52)
Pastoral infrastructures and main routes : Leyde (territories), cattle tracks and shelters. (p. 53)
Fodder production in relation to animal feeding (p.54)
Conclusion (p.55)
The
DELMASIG
GIS
uses
a
WGS
84
UTM
zone
30
North.
Distances
are
measured
in
metres
and
areas
in
hectares.
As
the
original
photo-interpretation
was
based
on
uncorrected
photo-coverage,
local
distorsions of up to 500m may be found when the maps are superimposed with satellite images.
Use
of
the
data
is
free,
provided
reference
is
duly
made
to
the
website
https:/www.delmasig.com
and
/or
to
the
specific
documents
used
and
their
authors.
We
recommend
that
users
of
the
databases
report
their projects to the following address:
info@delmasig.com
Jérôme MARIE & Pierre HIERNAUX
