The Soils of The Regional Municipality of Ottawa=Carleton

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Climate GENERAL DESCRIPTION OF THE AREA The Regional Municipality of Ottawa-Carleton is situated in parts of two climatic regions (7) . The majority of the regional municipality is situated in the Eastern Counties cli matic region . The remainder consisting of the northwestern part of the municipality is situated in the Renfrew climatic region. Asummary of pertinent climatic averages forthese two regions is provided inTable 1 . Differences between these regions are evident when comparing such statistics as mean average temperatures (6 .1 vs 5 .0°C), frost-free period (135 vs 130 days), growing season (195 vs 190 days), and mean annual precipitation (762 to 940 mm vs 711 mm) . Climatic trends across the regional municipality generally parallel thebroader trends indicated in Table 1 . Figure4 shows the location of climatic stations in the Ottawa-Carleton region and vicinity. Tables 2, 3, and 4 show temperature, precipitation, and growing season data respectively by climatic station. Mean annual temperature data indicate a very slight southerly warming trend with Kemptville registering the highest temperature at 5.9°C . Precipitation data from Table 3 indicate a subtle drying trend northwesterly up the Ottawa valley. For example, mean May to September rainfall values exceed 390 mm at Ottawa and are reduced to 352 .7 mm at Arnprior. Growing season values listed in Table 4 exhibit an increasing trend towards the south . A comparison of Arnprior and Kemptville stations shows an increase of approximately 4 days in the growing season, 6 days in the frost-free period, 200 growing degree days, and 100 corn heat units at the latter station . Mean Annual *Basedon temperatures above5°C 'DatafromBrown etaL,1968 Table 2 . Temperature data (°C) from the Ottawa-Carleton Region and vicinity' Jan MeanDaily Maximum Apr July Oct Jan Chats Falls 5 .8 -6 .0 10 .8 26 .7 13 .3 -16 .7 Arnprior 5 .5 -7 .2 10 .6 26 .4 13 .1 -15 .9 Ottawa, Agr. Canada 5 .9 -6 .4 10 .6 26 .2 13 .1 -15 .2 Ottawa Int'1 . Airport 5 .7 -6 .4 10 .7 26 .3 13 .0 -15 .4 Carp 5 .4 -7 .2 10 .4 25 .9 13 .0 -15 .6 Russell 5 .7 -6 .1 10 .7 26 .3 13 .6 -15 .8 Almonte 5 .4 -5 .8 10 .9 26 .4 13 .5 -16 .2 Ashton Station 5 .3 -6 .2 10 .6 26 .2 13 .2 -16 .0 Kemptville 5 .9 -5 .4 11 .1 26 .6 13 .6 -15 .1 'CompiledfromEnvironmentCanada,AtmosphericEnvironmentServiceClimaticNormals,1951-1980 Table 1 . Summary Statistics of the Eastern Counties and Renfrew Climatic Regions' Eastern Counties Renfrew MeanAnnual Temperature ('C) 6 .1 5 .0 Mean Daily Maximum Temperature (°C) January -4 .4 -5 .5 April 11 .1 10 .5 July 27 .2 26 .6 October 13 .8 13 .3 Mean Daily Minimum Temperature (°C) January -15 -16 .1 April 0 .5 -1 .1 July 13 .8 13 .3 October 2 .7 2 .2 Extreme Low Temperature (°C) -40 .0 -40.0 Extreme HighTemperature (°C) 40 .0 39 .4 Mean Date of Last Spring Frost May 15 May 18 Mean Date of FirstFall Frost Sept . 28 Sept . 25 Mean Annual Frost Free Period 135 130 Start ofGrowing Season* Apr. 15 Apr. 18 End of Growing Season Oct . 28 Oct . 27 Mean Annual Length of Growing Season 195 190 Mean AnnualGrowing Degree Days* 3400 3100 Mean Annual Precipitation (cm) 76.2-94 .0 71 .1 Mean Annual Snowfall (cm) 203 191 Mean Daily Mean Highest Lowest Minimum Daily Recorded Recorded Apr July Oct Jan Apr July Oct 0 .0 14 .7 3 .7 -11 .3 5 .4 20 .7 8 .5 37 .8 -41 .1 0 .0 14 .4 3 .1 -11 .6 5 .4 20 .4 8 .3 37 .2 -37 .2 0 .7 14 .9 3 .8 -10 .8 5 .7 20 .6 8 .5 37 .8 -38 .9 0 .3 14.9 3 .2 -10 .9 5 .6 20 .6 8 .1 37 .8 -36 .1 0 .4 14 .5 2 .9 -11 .5 5 .4 20 .3 8 .0 35 .6 -37 .8 0 .2 14.2 3 .1 -11 .0 5 .5 20 .3 8 .3 36 .1 -40 .0 -0 .6 13 .4 2 .6 -11 .0 5 .2 19 .9 8 .1 37 .8 -38 .9 -0 .3 13 .6 2 .5 -11 .1 5 .2 19 .9 7 .9 35 .6 -37 .2 0 .2 14 .1 3 .1 -10 .3 5 .7 20 .4 8 .4 38 .3 -39 .4
Arnprior Chats Falls Almonte " Carp Ashton Station " OTTAWA Agriculture Canada OTTAWA INTERNATIONAL AIRPORT " Kemptville Figure 4. Location of weather stations in the Regional Municipality of Ottawa-Carleton and vicinity. 0 " Russell 20 km
Page 1 and 2: i The Soils of The III Regional Mun
Page 3 and 4: ACKNOWLEDGEMENTS . . . . . . . . .
Page 5 and 6: 1 . Soil map index for the Regional
Page 7 and 8: 0 t W. CARLETO 10 L 20 km KANATA GO
Page 9: Otta!~? Figure 3. Main towns, trans
Page 13 and 14: may also contain shaly layers . Out
Page 15 and 16: Till plains (undrumlinized) _ Esker
Page 17 and 18: Surficial Geology and Relationship
Page 19 and 20: HUN nnnnoioion miammoo nonmmnon nou
Page 21 and 22: GEOLOGICAL MATERIALS SOIL ASSOCIATI
Page 23 and 24: GEOLOGICAL MATERIALS SOIL ASSOCIATI
Page 25 and 26: In this survey, boundaries were per
Page 27 and 28: BASIC LAND AREAS SOIL ASSOCIATION -
Page 29 and 30: their agricultural use . The domina
Page 31 and 32: OTTAWA- CARLETON SOILS t TYPE DEPTH
Page 33 and 34: B3 : Dominantlyvery Rego Gleysols p
Page 35 and 36: cant component, approximately 600 h
Page 37 and 38: In some soils, significant layers o
Page 39 and 40: Taxonomic Components The well-drain
Page 41 and 42: Taxonomic Components Four component
Page 43 and 44: Correlation to Ottawa Urban Fringe
Page 45 and 46: The well-drained Orthic Melanic Bru
Page 47 and 48: ial which extends in a northwest-so
Page 51 and 52: all Leitrim soils classified as suc
Page 53 and 54: The imperfectly drained St . Damase
Page 55 and 56: Recognized Recognized Subgroups Ser
Page 57 and 58: Soil Materials North Gower soils co
Page 59 and 60: Figure 17 . A poorly drained Orthic
Page 61 and 62:
Figure 25 . Manotick association so
Page 63 and 64:
Soil Landscape Units Four units wer
Page 65 and 66:
Recognized Recognized Subgroups Ser
Page 67 and 68:
sloping areas, groundwater flow, an
Page 69 and 70:
from clay to silty clay loam . In s
Page 71 and 72:
Recognized Recognized Subgroups Ser
Page 73 and 74:
scapes occurring inclose proximity
Page 75 and 76:
Within Rockland units, significant
Page 77 and 78:
A . AGRICULTURAL CAPABILITY CLASSIF
Page 79 and 80:
Table 7 . (cont'd) R' : T' : V' : W
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adequate moisture or a wetness limi
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In order to apply the tables, one m
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(e) The Capability Rating Tables Ta
Page 87 and 88:
00 Table 9. (continued) Slope Class
Page 89 and 90:
Table 9 . (continued) AGRICULTURAL
Page 91 and 92:
Table 9 . (continued) AGRICULTURAL
Page 93 and 94:
Soil Landscape Unit Table 10 . Agri
Page 95 and 96:
The water erosion formula, A= RKLSC
Page 97 and 98:
soil Association Table 13 . K-value
Page 99 and 100:
graphic regions . Therefore, the C
Page 101 and 102:
Table 17 . continued Crop Rotation
Page 103 and 104:
SOIL SOIL MATERIAL DESCRIPTION MAIN
Page 105 and 106:
C . LAND SUITABILITY CLASSIFICATION
Page 107 and 108:
Table 19 . Land suitability ratings
Page 109 and 110:
Table 19 . continued Soil associati
Page 111 and 112:
1 . Marshall, I.B., J. Dumanski, E.
Page 113 and 114:
Class Description Sl Slightly stony
Page 115 and 116:
Soil Association GRENVILLE Series a
Page 117 and 118:
Soil Association Series and (Subgro
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The Soils of The Regional Municipality of Ottawa=Carleton

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