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									 Bukola Johnson
LUMA-GIS, Sweden
   Objectives
  Background
     Datasets
 Methodology
      Results
   Conclusion
   Effective planning and
management of finite natural
 resources for sustainable
development in Lake Victoria
           Region
 Lake Victoria: World’s 2nd largest fresh water body

 Surface boundary: Tanzania (49%), Uganda (45%) and Kenya(6%)

 Economic contribution worth USD 3-4 billion annually

 Sustenance for 25 million people (1/3 of the region population)

 Economic activities:

    Agriculture (Tea and Coffee plantation) & Fishing,

     Source of water for industry & Transportation,

     Recreation &Tourists attraction
Adm. Boundaries:
Shape files for Kenya, Tanzania & Uganda from FAO Africover
Shape file for Lake Victoria region (3 countries) from UNEP

Climate
Precipitation data for Africa in text (ASCII) format
Peer- reviewed journal (New et al, 2002)

DEM
Two tiles from GTOPO30
E020N40.DEM covering Kenya and Uganda
E020S10.DEM covering SE of Tanzania

Land cover/ Land use
IGBP raster in .bsq format for Africa
.
 Population
Raster files (.TIF format) for Africa population(1990 and 2000) from UNEP

Protected Areas
Personal Geodatabase (.mdb) for Africa from UNEP & World Conservation Union
 Conceptual planning and modeling.

 Data previewed in Arc Catalog

 Convert data to ESRI GRID format

 Define data projection

 Re-project data to WGS84 and Lambert Azimuthal Equal

Area projection

 The Study Area clipped from the Africa dataset.

 Loading project data in Personal Geodatabase
   Table 1: Population Growth in Lake Victoria Region

             Area     Population Population     Annual
Country    (Sq. Km)    Yr. 2000   Yr. 1990      GR (%)
 Kenya     582164     30,536,278   23,465,996    3.0
Tanzania   941757     34,522,944   25,782,720    3.4
Uganda     241278     22,961,634   17,582,136    3.1
Table 2: Land Cover Statistics for Kenya, Tanzania and Uganda

 Land cover           Kenya    %     Tanzania   %     Uganda   %

 Forest                8904    4      103519    23      8967 5
 Shrubland            67786    32      34934     8      8254 5
 Savanna              64470    30      52960    12     56845 34
 Grassland            16090    8       60444    13      2011 1
 Permanent            11052    5       55568    12        56 0
 Wetland
 Croplands            22847    11      97002    22     61729 37
 Urban and built-up    6455    3       19118     4        73 0
 Barren and           10481    5        1606     0      1993 1
 Sparsely vegetated
 Water Bodies           4529    2      23489     5     28411 17
 Total                212614   100    448640    100   168339 100
Table 3: Additional Cropland for Population in Year 2030
                                              Area of
Country    Pop 2000   Area of  Pop 2030      Cropland Additional
                      Cropland               Required Cropland
Kenya      30,536,278  22,847 916,101,840     685,244     662,397
Tanzania   34,522,944   97,002   950,153,040 2,669,930   2,572,928
Uganda     22,961,634   61,729   774,384,990 2,081,547   2,019,818
 Crop needs sufficient
and effective rain to
grow and produce
yields.

 Croplands were
located in the region
with middle range
precipitation.

 Croplands were found
around Lake Victoria.
 The croplands situated
where the elevation
relatively low.

 In high elevation, rain
water essential for
productivity runs off.
 Croplands are
largely located in
elevation range of
0-1999
   Finite natural resources with competing demands.

   Sufficient rainfall in the region with Lake Victoria as a reservoir.

   Biophysical constraint such as topography that affect land use.

   Elevation influences geographical distribution of croplands.

   The mean annual population growth rate is about 3% for the region.

   Attendant decline in cropland per capita with population growth.
To ensure food security and social development:

   Implement landuse regulation

   Convert parts of forest land to croplands

   Exploit species and hybrid plants with high yield

  and short maturity time

   Promote Family Planning to control population

  explosion.

								
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