Sacramento Valley Air Basin. San Joaquin Air Basin

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Planning Issues inAgriculturewww.csustan.edu/Ag
Studies/courses

• Fall 2007

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Population and Urban Growth 58 Counties in
California
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Central Valley 18 Counties (Shasta Kern )
42,000 square miles 450 miles long (ex.
Boston to Washington) 40-60 miles wide over
5.5 million population (2000)
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San Joaquin Valley 8 Counties 27,276 square
miles 270 miles long 1- Northern San Joaquin
Valley (San Joaquin, Stanislaus, Merced) 2-
Southern San Joaquin Valley ( Madera, Tulare,
Kings, Fresno, Kern) Sacramento Valley (2
parts) Sacramento Metro - urban in
character North Sacramento Valley Land and
climate changes growing changes, uniqueness to
valleys and areas
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• Air quality bases (air region-basin)
• Inversions and air flows
• Sacramento Valley Air Basin
• San Joaquin Air Basin
• Airflow/pollutionwhere?

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Watersheds (All rivers flow downhill
?) 1-Sacramento River 2-San Joaquin
River 3-Tulare/Kings Where do they all end up?
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Common characteristics of the valley region
Agriculture- linkage Diversity 30 employment
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California is the most productive ag state ( 1
in production) San Joaquin valley produces ½ of
states total in its 8 counties 6 of 8 counties
produce more than a billion dollars/ year Entire
Central Valley produces 2/3 of states production
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Valley Characteristics Common Themes
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1 Fast paced population growth California
1950-2000 220 Valley 190.8 Stanislaus 251
.3 Madera 233.1 Merced 201.7 Kern 189.8
Fresno 189.1 San Joaquin 180.7 Kings 176.
8 Tulare 146.6
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• 2 Increasing urbanization
• Bay Area commuters
• Prison Construction
• Traffic Congestion

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• 3 Increasing diversity
• Cultural
• Economic
• 4 Increasing divergence
• Areas becoming different
• Diverging from coastal areas
• and the rest of the state
• 5 Unique Character
• Each county, city, and unincorporated community
  has a story to tell

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Historical Growth in California 1950 1970 CA.
88.57 Valley not growing as fast (only
44) Bay area and coastal areas incredible
growth 1970 2000 CA. 69.8 Valley
103.1 Highest growth in the valley
Stanislaus, Merced, Fresno, Madera (prison)
196.5
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Population Growth 1990 2000 CA.
13.8 Valley 20.5 Madera
39.8 Kings 27.6 Kern 21.4 Stanislaus 2
0.6 Highest shift from North Valley to South
valley Assignment for next weekwhat has the
population done since 2000? (hint look up the CA
Dept of Finance)
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Looking Forward
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Fastest growing cities 1990s Riverbank 84.2
(highest birth rate) Los Banos 78.2 Newman 70.
Tracy 69.6 Lathrop 52.7 What about the
2000s? (For next Week)
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Slowest growing cities 1990s Atwater 3.7
(closing Castle Air Force Base) Sonora 6.5
(physical restriction, growth debate) Dos Palos
9.2 (poor, high minority) Lodi 9.9
(Why?) Merced 13.9 (Large
population) Modesto 14.6 (Large
population) Stockton 15.6 (Large
population) What about the 2000s? (For next
Week)
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Hispanic share of population growth
Merced 116.2 Stanislaus 79.7 San
Joaquin 71.6 Mariposa 22.3
Calaveras 12.3 Tuolumne 11.9 Decline
of non-Hispanic Statewide 1990 25.8
Hispanic 2000 32.4 Hispanic Valley
1990 30 Hispanic 2000 40 Hispanic
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Population Density of our Cities (people per
square mile)
In 1990 San Jose 4545 Atwater 4250 Modesto 53
68 Stockton 3987 Lodi 4896 Tracy 3380 Ceres
4616 Merced 3460 Manteca 4614 Los
Banos 1964 In 2002 San Jose 5359 Atwater 4625
Modesto 6576 Stockton 4825 Lodi 5604 Tracy
6833 Ceres 6366 Merced 4106 Manteca 6250 Los
Banos 4021 (Normally density down in large
cities growth spreading) Cycles
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Population Density of our Cities
If population densities normally decrease in
large cities, why are densities increasing in
valley towns? What are our population densities
today? Out of class assignmentbring next
week. Where do I find this info?
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Population Density Web
http//ca.rand.org/stats/community/popdensity.html
Investigate the Internet for other links for
information as well as the list for the class. If
you cant access this site from home, you will
have to use a university computer.
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Historical Population in California 1950 to 1960
doubled 1950 2000 population explosion 12
of the population in US 1 out of every 8
people 1950 Fresno 276,515 Orange County
216,224 1970 Orange 1,421,233 Fresno
413,329 1950 Santa Clara
290,547 1970 - Santa Clara 1,065,313
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Population continued Point incredible coastal
growth due to economic change San Jose (surpassed
population of San Francisco) Became city in
1950 95,000 1960 204,000 1970 569,400 L.A.
value of Agriculture Production 1950 4.1
million 1970 7 million Today 7
million?____ Inflation? (Ag Census data)
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Population growth consequence of economic
changeopportunity for a better life 70s -
2000 Technology Cold war Expansion export Why
the valley? 1 low cost of living affordable
housing, inland movement from coastal areas,
young families 2 higher birth rates 3
movement from abroad (why?)
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• Growth effects
• More retail
• Crowded
• Pollution
• More consumer choices
• Faster population growth within cities
• Racially and ethnically changing
• Diversity increased in valley
• Highest in Tulare, Merced, Madera, Fresno,
  Kings

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Urbanization in valley migration from
coast Future population projections
2000 2010 2020 CA. 15.3
31.2 Valley 24.1 51 double in valley (7
million) by 2040 What will that do to
Agriculture in the Valley? Fresno is 1 Ag
county in USA ________ NASS
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Other Valley statistics. California population
under 18 California 27.3 Merced 34.5 Stanisl
aus 31.1 San Joaquin 31.0___?____ Calaveras
22.8____?____
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With all this growth, will people in the valley
be better off ? Poverty rates() Why? Lowest
Santa Clara 8.2 San Joaquin 17 Kern 20 King
s 22.8 Madera 22.9 Fresno 24.3 Merced
24.7 Highest Tulare 26.6
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As a function of Education Level? HS
graduate Bachelors degree US 81.6 25.1 CA 78
27.5 SC 85.1 41.9 SJ 77.2 13.8 Kern 69.4
13.8 Fresno 67.8 19.1 Stan. 63 13.5 Tulare 6
2.1 11.9
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• As a function of Income ?
• Valley average
• State has changed, valley has not
• Middle valley Ag has not changed
• Housing prices go up in the valley
• affordability goes down
• higher of people married

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Unemployment rates 2000 Nov.
2001 2006 State 5.0 5.8 ____ SC 2.0 6.6
____ SJ 8.8 9.6 ____ Stan. 10.4 10.8
____ Kern 11.3 10.7 ____ King 14.0 13.8
____ Fresno 14.3 13.6 ____ Merced 14.4 14.6
____ Tulare 15.4 15.8 ____ Extra Creditfill
in the blankssite source..
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• It is believed that high unemployment was from
  agriculture, but this is not true.
• 1974-1997
• 1- pattern same as the states
• Stanislaus labor force same, but
• we have seasonal employment
• back in 70s fewer jobs/more people/economy
  problem
• 2- July 76 certain unemployment up in CA
• Stan lower than that of state
• 3- fluctuations arent that great doesnt vary

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Relationship Ag contributes but does not
become the main reason for unemployment
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NextShould we be concerned about preserving
Agriculture land in the Valley?