mean annual rainfall population density
TRANSCRIPT
Mean annual rainfall Population density
Reference: Schedules of water resources, ANA, 2005 Reference : IBGE, 2007
Inhabitants per
square kilometer
Rainfall (mm)
Situation of the
main parts of the
Brazilian rivers in
relation to
demand /water
availability.
Tietê River Basin:
"Hydric Stress" due to
the high demand for
public water supply
Relationship between demand
and the Water availability (%)
Excellent Comfortable Alert level Critical Very critical
Semi-arid region
basins: “Hydric
Stress" due to
the scarcity of
water resources
Sub-basins of the Uruguay and South
Atlantic River Basins : “Hydric Stress"
due to the very high water demand for
agricultural irrigation
1 2 3 Predominantly critical and very critical river basins
Reference: adapted from “Situation of water resources in Brazil" (ANA,2009)
1
2
3
Percentage distribution of the São Paulo State population
Elaboration: Geographical Information
Coordination – CIG, Emplasa.
Reference: SMA/CPLA/GTLPM
(*) The difference of 0,55 is due to the references
used: FIBGE-CENSO 1991 (and respective errata)
and agregate data by CERH, according to Dec.
36.787/93 and Dec. 36.455/94
Baixada Santista
(south coast)
References A. Simonsen, Roberto C. História Econômica do brasil (1500/1820) - (1978). Apresenta as estimativas atribuídas a Contreiras Rodrigues, Thomas Ewbank e Adriano Balbi, p.271; B. Furtado, Celso. Formação Econômica do Brasil (1959), p.93; C. Site IBGE:<http://www.ibge.gov.br/home/estatistica/populacao/censohistorico/1550_1870.shtm > D. Site IBGE:< http://www.ibge.gov.br/home/estatistica/populacao/censo2010/tabelas_pdf/Brasil_tab_1_4. E. Site IBGE:<http://www.ibge.gov.br/home/estatistica/populacao/projecao_da_populacao/2008/default.shtm>
The Evolution of the Brazilian population (inhabitants)
Census Data
Projection
Year of Census
Po
pu
lati
on
Reference: A. Site IBGE:< http://www.ibge.gov.br/home/estatistica/populacao/censo2010/tabelas_pdf/Brasil_tab_1_4.pdf >
B. Site SEADE: <http://www.seade.sp.gov.br/produtos/projpop/index.php>
Evolution of the population of the State of São Paulo (inhabitants)
Census Data
Projection
Year of Census
Po
pu
lati
on
Reference: A. Site PMSP:< http://sempla.prefeitura.sp.gov.br/historico/tabelas/pop_brasil.php> B. Site IBGE:<http://www.ibge.gov.br/home/estatistica/populacao/censo2010/tabelas_pdf/Sao_paulo.pdf> C. Site SEADE: <http://www.seade.sp.gov.br/produtos/projpop/index.php>
Evolution of the population of the Metropolitan Region of
São Paulo (inhabitants)
Census Data
Projection
Year of Census
Po
pu
lati
on
Evolution of the urban and Rural Population in Brazil
(inhabitants) 1940-2000
Reference; Site IBGE:< http://www.ibge.gov.br/
São Paulo Metropolitan Region (SPMR)
Annual rates of population growth 2000-2005
SPMR WATER SOURCES REGIONS
1,6%
4,0%
The trend of peripheral growth is maintained until 2025
Land area: 8,500 km2
Urbanized area: 2,139 km2
Population: 20,309. 647hab
“Social Centrifuge" and water sources regions occupations
Urban Sprawl Evolution – 1905
RADIUS
Evolução da Mancha Urbana - 1954
Urban Sprawl Evolution – 1954
RADIUS
Urban Sprawl Evolution – 1973
RADIUS
Urban Sprawl Evolution – 1985
RADIUS
Urban Sprawl Evolution – 1985 and 2005
RADIUS
Issues in water sources regions
Illegal occupation
Raw sewage release
Water sources regions Occupancy in valley-bottoms
Urban water sources
Disordered occupancy
Billings
Reservoir
Billings Reservoir Region
Guarapiranga
Reservoir
Guarapiranga Reservoir Region
Metropolitan ring road
Southern Section of the Mario Covas Beltway
Southern Section of the Mario Covas Beltway construction details
Bridge over Billings Reservoir
Constructive details of the occupation in water sources regions
Available at: <http://www.angularaerofoto.com.br/index.php#mi=2&pt=1&pi=10000&s=11&p=4&a=0&at=0>
Aerial photo of the Beltway: Aerial view of a section of the
Mario Covas Beltway in the municipality of Santo André – SP
Photografy: Pedro Calado
The routhe of the highway passes throught the Billings and Guarapiranga
water sources regions
Eutrophication
Barrier to control the macrophytes dispersion in the reservoir
Operation problems
macrophytes
Water
catchment at
Rio Grande
water
treatment
plant
Water
source
Quality
Algae bloom
The water management and the pollution control are mechanisms to increase the water availability to more rigorous uses, as public
water supply
The water availability, to comply with its purposes, depends on the integration of
the use and the impact management
The new paradigm
Water Resources Management
System
National Environmental
System
Management Water Quality
Reference: Adaptaed from Monica Porto – EP/USP
• Regulation of the use and occupation of the soil mainly in urban water
sources areas
• Urban Development Policy, in order to keep the people in the countryside
• Integrated and Multi-institutional Planning
• Environmental Agencies
• Public Authorities
• Public Prosecutor
• Prefectures
• Sanitation Company
.
.
.
Action on the causes and not on the effects
