Download - SUSTAINING SOCIO-ECONOMIC VALUES OF LAKES : FINDINGS ON WATER CLARITY AND LAKESHORE PROPERTIES
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SUSTAINING SOCIO-ECONOMIC VALUES OF
LAKES: FINDINGS ON WATER CLARITY AND LAKESHORE
PROPERTIES
By Dr. Patrick Welle, Bemidji State Univ.
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GROUPS WHO RECEIVE ECONOMIC BENEFITS
• Lakeshore Property Owners• Residents who use lakes• Tourists• Non-Users who attach Stewardship Values
to lakes
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SELECTED EMPIRICAL FINDINGS
• Citizens willing to pay mean values of $50-$200 per year to protect lakes from problems such as premature eutrophication, acidification, or deposition of mercury
• Tourism parties spending average of nearly $1,000 per trip in northern MN, 75% stating environmental atrributes, lakes and forests as “thing they liked best.”
• MPCA Impaired Lakes Study in Horseshoe Chain and Lake Margaret/Gull ($20 vs. $200 per year)
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Lakeshore Property Values and Water Quality: Evidence from
Property Sales in the Mississippi Headwaters Region
Charles Krysel, Elizabeth Marsh Boyer,
Charles Parson and Patrick Welle
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Study Purposes:• To generate a high quality data set on sale prices
of riparian properties in the MHB Region.
• To find out how water clarity influences Minnesota lakeshore property prices compared to those in the state of Maine.
• To estimate the implicit price of water clarity--- as an indicator of economic value.
• To inform people about the connection between water quality, economic decisions and land uses.
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Study Sample
• 37 Lakes • Lakeshore properties sold in 1996-2001• 1205 properties included, out of 1350 visited.• Lakes assigned to six lake groups that best
approximated market areas.
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Data Collected
• Property information obtained from county assessor records:– Sales price, assessed values, tax rates– Structural characteristics (square feet, # of
stories, presence of fireplace, central heating, full bathroom, garage, etc.)
– Property characteristics (lot size, frontage feet, public road, adjacent density, etc.)
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Environmental Variables
• Lake Water Quality– Mean water clarity measurement (Secchi disc
reading) on the lake for the year property sold
• Site Quality– Rating assigned to each property based on 8
site quality factors such as view, kind of shoreline landscaping, density, vegetative cover
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Water Clarity (m)
DamEsquagamah
Farm IslandRoss
SpiritAlexander
BayFish Trap
GullNorway
PelicanPlatte
RooseveltShamineau
Upper HayBalsam
PokegamaPrairie
WabanaAda
KabekonaLeech
Woman4thCrowWing
8thCrowWing
Fish HookGeorge
LongBemidji
CassIrving
MarquetteBig Turtle
Big Wolf
Big Sandy
Belle Taine
Ten Mile
0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00
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Land Price Per Frontage Foot (US Dollars)
Big SandyDam
EsquagamahFarm Island
RossSpirit
AlexanderBay
Fish TrapGull
NorwayPelican
PlatteRoosevelt
ShamineauUpper Hay
BalsamPokegama
PrairieWabana
AdaKabekona
LeechTen Mile
Woman4thCrowWing
8thCrowWingBelle Taine
Fish HookGeorge
LongBemidji
CassIrving
MarquetteBig Turtle
Big Wolf
0 200 400 600 800 1000 1200 1400 1600 1800
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30 0 30 60 Miles
N
EW
S
Mississippi Headwaters Board Region Selected Lakes with Markets Circled
Bemidji
Park Rapids
Walker
Grand Rapids
Aitkin
Brainerd
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Mean Values by Lake Group Property
PricePrice per
Front FootWater Clarity
Aitkin $100,313 $452 2.78
Brainerd $176,461 $959 3.99
Grand Rapids $135,905 $434 3.82
Walker $179,621 $720 4.29
Park Rapids $124,390 $458 4.19
Bemidji $142,829 $624 2.85
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Procedure
• The econometric valuation technique called “the hedonic property value model” was used to reveal the portion of purchase price attributed to water clarity, a “non market” environmental quality amenity.
• Hedonic models use multiple regression analysis• Separate model equations were estimated for each
of the six lake groups• PPLandFF = f (S, L, lnWQ*LA)
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Major Findings• Water clarity is significant in each of the six
lake groups---a positive relationship.
• Robust results in that the positive influence of water clarity on property values is highly significant in alternative forms of the model.
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Major Findings
• Site quality is significant in four of the lake groups---three had negative relationships and one was positive.
• I.E. More damaging lakeshore practices increased sale prices.
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Implicit Price of Water ClarityPrice change per frontage foot for a one (1) meter
change ,+or-, in water clarity for selected lakes multiplied by the marketable shoreline length
• Gull Lake: (+) = $39FF, $6,500,000 Lake (-) = $53FF, $8,800,000 Lake
• Pokegama: (+) = $30FF, $5,000,000 Lake (-) = $36FF, $6,000,000 Lake
• FishHook: (+) = $61FF, $1,900,000 Lake (-) = $83FF, $2,600,000 Lake
• Big Turtle: (+) = $21FF, $1,000,000 Lake (-) = $29FF, $1,400,000 Lake
• Big Sandy: (+) = $218FF, $63,579,983 Lake (-) = $516FF, $150,560,122 Lake
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Site Visits to AssessShoreland Quality and Property
PricesFine Lawns versus Fine Lakes:
High Priced Land
High Risk Lakes
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Over 1,350 individual site visits
• Possible in one summer thanks to recent developments in geographic information at the county level.
• Using E911 locations in some counties.• Creating our own GIS data in two counties
from assessor’s maps.– Scanning, rectifying, and counting lots from
landmarks
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Sources of GIS Support
Eight counties assisted in this project to the best of their abilities. Three, Cass, Aitken and Hubbard had complete parcel mapping for area that we needed. Two others, Crow Wing and Itasca were in the process, and Itasca actually diverted surveyors to complete lakeshore parcels that we needed. Beltrami had lakes outside Bemidji parcel mapped, but not within the city. Morrison had E911 mapping for us to draw on, and Clearwater provided us an assessor’s map which we rectified as best we could.
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Parcels Sold 1996 to 2001Bay Lake
# GPS points
N
EW
S
Bay Lake, Crow Wing County
Prepared by Charlie Parson BSU geographyfor LCMR, MHB 5/28/03
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Lakes and Water Clarity
• Although there is a product available in a GIS format, we drew our data from Mn.PCA so that we could relate clarity in the year that a parcel was sold to its price.
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Minnesota “Land of 10,000 Lakes”
Figure from: University of Minnesota Remote Sensing Laboratory
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Shoreland Quality Indicators
• View from the parcel (Pristine 3, Some Development 2, Heavily Developed 1)
• Shore Landscaping (Deep Indigenous Buffer 4,Deep Buffer>15’ 3, Thin Buffer 2, Mowed to Water 1)
• Texture of Riparian Bank (Naturally Rocky 4, Sand 3, Mud 2, RipRap 1)
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Remotely Sensed Water Clarity
• The other draw back to using the statewide map was precision.
• As we developed a linear model, we needed clarity data in tenths of meters to correlate with prices in actual dollars.
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Shoreland Quality Indicators
• Parcel Ground Cover (Brush 3, Grassland 2, Mowed Lawn 1)
• Tree Cover (Coniferous 4, Deciduous 3, Mixed 2, Nothing 1)
• Vegetation in Riparian Zone (Wooded 5, Emergent 4, Submergent 3, Nothing 2, Artificially Cleared 1)
• Tree Frequency (Many 3, Several 2, Few 1)• Built Shore Structures (None 4, Dock 3, Boat
Lift(s) 2, Boat House etc. 1)
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Relationships between lakeshore management and price (negative)• In the “prestige” lake
areas properties like this bring the highest prices.
• Unfortunately, they are also likely to degrade lake clarity
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Relationship between “prestige” lakeshore and water quality
• Fertilizer enters the lake
• Sediment laden runoff• Wave erosion• Turbulence from water
craft “on the beach”• Lack of shaded waterAll potentially damage
clarity.
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Relationship between lakeshore and price (positive)
• In the less developed market area environmentally desirable practices are associated with higher property prices
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Desirable Lakeshore Practices
• Maintain a dense vegetated buffer between the lake and the lawn.
• Leave or re-plant aquatic vegetation.• Terrace slopes and leave them wooded.• Shade the lake if possible.• Minimize structures in the lake to limit
stirring up the lakebed.
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The public good
• Policy makers may use incentives or disincentives to change lakeshore management.
• Tax bases may increase as lakeshore management improves by millions of dollars in every county.
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The Bottom Line• A one meter clarity change on 3,700 lakes in Minnesota
(about 1/3 of our total) may cause a $100,000,000,000 property value change.
• At present the overall lakeshore property values are endangered by the actions of property owners who wish to maximize their personal gains.
• Fine lawns can foul lakes. We need better incentives and education to encourage more lake-friendly practices to protect our “10,000 lakes”.
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LCMR , MHB and NSF supported this research
Patrick Welle, Ph.D.
Professor of Economics & Environmental Studies
Bemidji State University
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ftp://ftp-fc.sc.egov.usda.gov/Economics/recreate/lakestudy.pdf
The report as a 58 page pdf file may be downloaded here.