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Introduction

Arroyo Grande is a little coastal town located in San Luis Obispo County on California’s Central Coast. Earliest Farmers were the Chumash Indians followed by the Spanish and so European colonists. Arroyo Grande means “big ditch” or more accurately translated, “wide riverbed” . This name was given to the country by the Spanish due to its fertile dirt ( City Of Arroyo Grande, 2013 ) .

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There are 25 different types of dirt throughout Arroyo Grande ( Pennebaker, 2009 ) . This presentation will be covering 5 of the major dirt types used for agribusiness in Arroyo Grande.

Map

Current Demographic

Population: 17,543 ( as of 2012 )

Estimated average household income: $ 59,991 ( as of 2011 )

Elevation: 80 Foot

Land Area: 5.67 Square stat mis

Nearest big metropoliss: Santa Maria, Bakersfield, Los Angeles

( city-data.com, 2013 )

Climate

Weather in Arroyo Grande is influenced by the Pacific Ocean

Average warmest month: September

Average coolest month: December

Highest recorded temperature: 108° F ( 1962 )

Lowest recorded temperature:23° F ( 1963 )

Rainy season: December-February

( The Weather Channel, 2013 )

Water

Arroyo Grande receives its H2O preponderantly from land beginnings such as the Arroyo Grande Aquifer, Santa Maria land Basin or the Lopez reservoir.

75 % of the precipitation that falls on Arroyo Grande occurs from December to March

Farm land in Arroyo Grande is irrigated utilizing good H2O pulled from the above beginnings ( Department of Water Resources, Southern District, 2002 ) .

Mistake

Arroyo Grande does non lie straight over any mistakes.

In recorded history Arroyo Grande has felt 6 temblors all within a 90 stat mi radius.

History

Arroyo Grande Valley dirt is made up of Marine sedimentary and volcanic dirt dating back to the Tertiary Period. This is layered over 100 million twelvemonth old bedrock made up of greywacke, limestone, chert, and shale ( County of San Luis Obispo, 2012 ) .

This makes for really fertile dirt if irrigated and hence Arroyo Grande has a long history of Agriculture ( County of San Luis Obispo, 2012 ) .

Land Use

Of the 2,500 estates of land that run along the Arroyo Grande Creek 91 % is classified as premier agricultural dirt ( Pennebaker, 2009 ) .

Due to Arroyo Grande Valley’s deep dirts, and mild temperatures vegetable and row harvests such as boodle, Brassica oleracea italica, Brassica oleracea botrytis, chou, Apium graveolens dulce, and strawberries yielded about $ 24 million dollars in 1994 ( Pennebaker, 2009 )

Extra harvests include:

Avocados

Kiwis

Wine Grapes

Citrus fruits

Alfalfa

Soils Map Arroyo Grande Valley

Occurs at lifts of 200 – 3,300 Feet

Average one-year rainfall: 12-30 inches

Slightly overly drained

Moderate Permeability

Rapid to really rapid overflow

Used for turning grapes on good drained hillsides

( National Cooperative Soil Survey, 2003 )

Lopez Soil Series Profile

Moist dark to really dark grey really shaly clay loam ; strong mulct and medium farinaceous construction ; somewhat hard, really crumbly, somewhat gluey and somewhat fictile ; common really all right, all right, medium and harsh roots ; many really all right and all right interstitial pores ; approx 15 % angular shale fragments & gt ; 3/4 in, +30 % = 2 millimeter ; pH 6.8 ; gradual guerrilla boundary

Damp grey to dark grey brown really shaly clay loam ;

strong mulct and medium farinaceous construction ; somewhat hard, really crumbly, gluey and somewhat fictile ; common really all right, all right, medium and harsh roots ; many really all right and all right interstitial pores ; approx. 40 % shale fragments & gt ; 3/4 in plus about 30 % & gt ; 2 millimeter ; pH 6.6 ; disconnected irregular boundary.

Hard fractured diatomaceous ( Monterey ) shale. Strata tilted at about 45 degree angle with few difficult outcrops exposed. Rock articulations are coated with thin dark brown clay movies

Marimel Soil Series

Occurs on inundation fields and in vales ; lift 0-400 pess

Average one-year rainfall: 15-20 inches

Slightly ill drained

Reasonably slow permeableness

Very slow to decelerate overflow

Best for turning Veg, barley, and groves

( National Cooperative Soil Survey, 2003 )

Marimel Soil Series Profile

Moist grey brown to really dark grey brown flaxen clay loam ; moderate medium farinaceous construction ; somewhat hard, crumbly, somewhat gluey and somewhat fictile ; many really all right roots ; many really all right cannular pores ; pH 7.5 ; clear smooth boundary

Moist grey brown to really dark grey brown clay loam ; monolithic ; somewhat hard, crumbly, somewhat gluey and somewhat fictile ; common really all right roots ; many really all right cannular pores ; few thin clay movies run alonging pores ; pH 7.5 ; somewhat effervescent with calcium hydroxide disseminated and segregated in fibrils ; clear smooth boundary.

Moist variegated grey and pale olive to really dark grey silty clay loam ; few all right outstanding visible radiation xanthous brown and strong brown mottles, all right distinguishable dark xanthous brown moist ; monolithic ; somewhat hard, crumbly, somewhat gluey and somewhat fictile ; common really all right roots ; many really all right cannular pores ; few thin clay movies run alonging pores ; pH 7.5 ; strongly effervescent with calcium hydroxide disseminated and segregated in fibrils ; free H2O at deepness of 36 inches.

Chamise Soils Series

Occurs on hills ; lift 100-1500 pess

Average one-year rainfall: 12-20 inches

Well drained

Reasonably slow permeableness

Medium to rapid overflow

Best for turning little grain and hay

( National Cooperative Soil Survey, 2003 )

Chamise Soils Series Profile

Moist dark grey to shaly loam, ( 10YR 3/2 ) ; strong all right farinaceous construction ; somewhat hard, crumbly, somewhat gluey, somewhat fictile ; common really all right and all right roots ; many really all right and all right interstitial ; pH 6.0 ; clear smooth boundary.

Moist dark grey to really dark grey brown shaly loam ; weak medium angular blocky separating to weak mulct to medium farinaceous construction ; difficult, house, somewhat gluey, somewhat fictile ; many really all right to all right roots ; many really all right interstitial and many really all right to medium cannular pores ; pH 5.8 ; clear wavy boundary.

Moistgrey to really dark grey brown ( 10YR 5/1 ) shaly loam ; moderate medium farinaceous construction ; somewhat hard, crumbly, somewhat gluey, plastic ; common really all right to all right roots ; many really all right interstitial and many really all right to medium cannular pores ; pH 5.7 ; clear wavy boundary.

Moistlight chocolate-brown grey to dark brown shaly clay, dark brown ; monolithic ; really hard, house, gluey, really fictile ; common really all right to medium roots ; few really all right interstitial and few really all right to ticket cannular pores ; many thick clay movies line tubular and interstitial pores ; mineral grains have colloidal staining ; pH 5.5 ; clear wavy boundary.

Moist light chocolate-brown grey to dark brown crushed really shaly heavy clay loam ; monolithic ; really hard, house, gluey, plastic ; few really all right roots ; few really all right interstitial and few really all right and all right cannular pores ; many thick clay movies line tubular and interstitial pores ; colloidal stains on mineral grains ; pH 5.3 ; spread smooth boundary.

Moist pale brown to yellowish brown really shaly clay loam ; brown rubbed ; monolithic ; really hard, house, gluey, plastic ; few really all right roots ; common really all right interstitial pores ; common midst clay movies line interstitial pores ; colloidal staining on mineral grains ; pH 5.3.

Oceano Soil Series

Occurs on dune like topography ; elevation 25-1100 pess

Average one-year rainfall: 10-20 inches

Excessively drained

Rapid permeableness

Very slow overflow

Best for turning Veg and fruit

( National Cooperative Soil Survey, 2003 )

Oceano Soil Series Profile

grey brown to dark grey brown moist sand ; individual grained ; free ; many really all right roots ; many really all right interstitial pores ; pH 6.1 ; clear smooth boundary ( National Cooperative Soil Survey, 2003 ) .

rayish brown to dark grey brown moist sand ; monolithic ; soft, really crumbly, common really all right roots ; many really all right interstitial pores ; pH 5.9 ; gradual smooth boundary.

light chocolate-brown grey to brown damp sand ; monolithic ; soft, really crumbly ; few really all right roots ; many really all right to ticket interstitial cannular pores ; pH 5.5 ; gradual smooth boundary ( National Cooperative Soil Survey, 2003 ) .

light chocolate-brown grey to brown damp sand ; monolithic ; soft, really crumbly ; few really all right roots, many really all right interstitial and few all right cannular pores ; pH 5.5 ; gradual smooth boundary.

pale brown to yellowish brown moist sand ; monolithic ; soft, really crumbly ; few really all right roots ; many really all right interstitial and few all right cannular pores ; pH 5.3 ; gradual smooth boundary.

pale brown to yellowish brown moist sand ; monolithic ; soft, really crumbly ; few really all right roots ; many really all right interstitial pores ; several weak 1/8 inch midst gill ; somewhat hard, slightly branched.

light xanthous brown to yellowish brown moist sand ; monolithic ; soft, really crumbly ; plastic ; many really all right interstitial pores ; weak gill 1/4 inch to 3/8 inch midst, discontinuous, somewhat wavy, sand grains really thinly coated ; somewhat more harsh than C3 ; pH 5.5 ( National Cooperative Soil Survey, 2003 ) .

Mocho Soil Series

Derived from sandstone and shale stone ; elevation 20-3500 pess

Average one-year rainfall: 12-30 inches

Well drained

Reasonably to reasonably slow permeableness

Slow or medium overflow

Best for turning Veg and fruit, and grain

( National Cooperative Soil Survey, 2003 )

Mocho Soil Series Profile

Grey brown to really dark grey brown moist loam ; moderate all right farinaceous construction ; somewhat hard, really crumbly, somewhat gluey and somewhat fictile ; common really all right to all right roots ; common mulct to medium interstitial pores ; somewhat effervescent, carbonates disseminated ; reasonably alkaline ; clear smooth boundary

Grey brown to really dark grey brown moist loam ; weak medium subangular blockish construction ; somewhat hard, really crumbly, somewhat gluey and somewhat fictile ; common mulct to really all right roots ; common really all right to ticket cannular pores ; strongly effervescent, carbonates disseminated ; reasonably alkaline ; clear smooth boundary.

Light chocolate-brown grey to dark grey brown moist loam ; weak medium subangular blockish construction ; somewhat hard, really crumbly, somewhat gluey and somewhat plastic ; few really all right to all right roots ; many really all right to ticket cannular pores ; strongly effervescent, carbonates disseminated ; reasonably alkaline ; clear smooth boundary.

Light chocolate-brown grey to dark grey brown mulct, moist flaxen loam ; weak medium subangular blockish construction ; somewhat hard, really crumbly, somewhat gluey and somewhat plastic ; few mulct to really all right roots ; common really all right to ticket cannular pores ; stratified thin beds of sand and lenses of all right stuff with brown organic stuff between the strata ; strongly effervescent, carbonates disseminated ; reasonably alkaline.

Overview

Introduction

Maps

Current Demographics

Climate

Water Source

Geological Mistakes

History of Soil

Land Use

Beginnings

California Institute of Technology. ( 2014 ) . Los Osos Fault Zone. Retrieved from www.data.scec.org/significant/lososos.html

California Soil Resource Lab: UC Davis. ( 2005, June 1 ) . California Soil Resource Lab. Retrieved from hypertext transfer protocol: //casoilresource.lawr.ucdavis.edu/soilweb/

City Of Arroyo Grande. ( 2013 ) . Arroyo Grande, California EST.1911. Retrieved from www.arroyogrande.org

city-data.com. ( 2013 ) . Arroyo Grande, California. Onboard Informatics. Retrieved from hypertext transfer protocol: //www.city-data.com/city/Arroyo-Grande-California.html

County Of San Luis Obispo. ( 2012 ) . Environmental Impact Analysis – Geology and Soils. Retrieved from Slocounty.ca.gov/assets/PL/EIR/2012PL/EIR/2012/Dana+Adobe+Final/Sections/4-5+-+Geology+and+Soils.pdf

Beginnings

County of San Luis Obispo. ( 2012 ) . Environmental Impacts and Mitigation Measures: Agricultural Resources. Retrieved from hypertext transfer protocol: //www.slocounty.ca.gov/Assets/PL/EIR/2012/Dana+Adobe+Final/Sections/4-5+-+Geology+and+Soils.pdf

Department of Water Resources, Southern District. ( 2002 ) . Water Resources of the Arroyo Grande, Nipomo Mesa Area. Retrieved from hypertext transfer protocol: //www.dpla.water.ca.gov/sd/water_quality/arroyo_grande/chapter_i.pdf

National Cooperative Soil Survey. ( 2003, Feb ) . Lopez Series. Retrieved from hypertext transfer protocol: //soilseries.sc.egov.usda.gov/OSD_Docs/L/LOPEZ.html

Natural Resources Conservation Service. ( 2013, December 14 ) . Web Soil Survey: San Luis Obispo County. Retrieved from hypertext transfer protocol: //websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx

Beginnings

Pennebaker, L. ( 2009, May ) . Agricultural Buffer Criteria For the City Of Arroyo Grande. Retrieved from digitalcommons.calpoly.edu/cgi/viewcontent.cgi? article=1087 & A ; context=theses

State of California: Department of Conservation. ( 2013 ) . Alquist-Priolo Earthquake Fault zones. Retrieved from www.conservation.ca.gov/cgs/rghm/ap/pages/index.aspx

The Weather Channel. ( 2013 ) . Arroyo Grande Weather Averages. Retrieved from www.weather.com

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