Detailed Soil Survey of the Mount Revelstoke Summit Area.

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(D1) Rapidly drained - soil moisture content seldom exceedsfield capacity in any horizon except immediately afterwater additions .(D2) Well drained - soil moisture content does not normallyexceed field capacity in any horizon except possibly theC, for a significant part of the year .(D3)Moderately well drained - soil moisture in excess of fieldcapacity remains for a small but significant period of theyear .(D4) Imperfectly drained - soil moisture in excess of fieldcapacity remains in subsurface horizons for moderatelylong periods during the year .(D5)Poorly drained - soil moisture in excess of field capacityremains in all horizons for a large part of the year .(D6) Very poorly drained - free water remains at or within 12inches of the surface most of the year .Specific reference tosurface drainage may be designatedin terms of run-off and described ashigh, medium, low, or ponded .Similarly, specific reference tothecharacteristics of horizonswithin the profile may be designatedin terms of permeability orpercolation and described asrapid, moderate, slow, very slow,and none .4 . HORIZON BOUNDARIESThe lower boundary of each horizon is described by indicatingits distinctness and form as suggested in the U .S . Departmentof Agriculture Soil Survey Manual (1951) .
109Distinctnessabruptless than 1 inch wideclear 1 to 2 .5 inches widegradualdiffuse2 .5 to 5 inches widemore than 5 inches wideFormsmoothwavyirregularbrokennearly a planepockets are wider than deeppockets are deeper than wideparts of the horizon are unconnectedwith other parts5 . UNIFIED SOIL CLASSIFICATION SYSTEMThe Unified Soil Classification System identifies soilsaccording to their textural and plasticity qualities, and theirgrouping with respect to their performances as engineering constructionmaterials .The following properties form the basis ofsoil identification :(a) Percentages of gravel, sand, and fines (fraction passingthe No . 200 sieve) .(b) Shape of the grain-size distribution curve .(c) Plasticity and compressibility characteristics .The soil is given a descriptive name and a letter symbolindicating its principal characteristics .Four soil fractions are recognized :cobbles, gravel, sand,and fines (silt or clay) .
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DETAILED SOIL SURVEYOF THEMOUNT REV
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PageSOIL PRODUCTIVITY 53BIBLIOGRAPH
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LIST OF PLATESPagePLATE 1 . Humo-Fe
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INTRODUCTIONIn recent years Parks C
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THE STUDY AREAGeographic LocationTh
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calcareous rocks in the study area
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Mount Copeland (6,060 feet ASL) .At
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METHODS OF INVESTIGATIONField Techn
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116 . Pyrophosphate-Extractable Alu
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13FIGURE 2 .DIAGRAM OF A SOIL PROFI
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15Soils of the Summit AreaThe soils
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MISCELLANEOUS MAPPING UNITSRBedrock
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AhBhf20 cm-Plate l .The Humo-Ferric
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21extremely sloping land surfaces o
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Soil Map Unit 3(Orthic and Cumulic
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25These soils have severe limitatio
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27Horizon Depth (cm) Color Texture
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295-a20 cm-5 -bPlate 5 .The hummock
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31stands are made up of Abies lasio
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6-aAeBfR20 cm-6 -bPlate 6 .The Lith
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37INTERPRETATIONSSoil Properties an
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39TABLE 4,GUIDES FOR ASSESSING SOIL
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41TABLE 6 .GUIDES FOR ASSESSING SOI
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43TABLE 8 .GUIDES FOR ASSESSING SOI
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45especially where bedrock is close
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TABLE 10 . DEGREE AND NATURE OF SOI
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49The soils of map units 1, 8 and 9
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51compounds thus inhibiting percola
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53PRODUCTIVITYProductivity ratings
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S4 XTABLE 11 . DISTRIBUTION OF SOIL
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57BIBLIOGRAPHYAlberta Department of
Page 64 and 65: 59Terzaghi, K . and R .B . Peck . 1
Page 66 and 67: 61ecosystem .While the activities i
Page 68 and 69: TABLE A. CLASSES OF FRAGILITY FOR P
Page 70 and 71: TABLE B. CLASSES OF FRAGILITY FOR S
Page 72 and 73: 67than to channel use to a rarer ty
Page 74 and 75: 69approximately 10 cm thickness and
Page 76 and 77: 71ANALYTICAL DATA 1HorizonDepthcmCa
Page 78 and 79: 73several species of common occurre
Page 80 and 81: 75Soil Map Unit 3The imperfectly to
Page 82 and 83: 77Soil Classification :Orthic Regos
Page 84 and 85: 79ANALYTICAL DATA 3BHorizonDepthcmC
Page 86 and 87: 81Elevation : 6,000 ft . ASL (1,830
Page 88 and 89: 82ANALYTICAL DATA 4HorizonDepthcmCa
Page 90 and 91: Aspect :southeastElevation : 6,200
Page 92 and 93: Soil Map Unit 6Hummocky microrelief
Page 94 and 95: ANALYTICAL DATA 6HorizonDepthcmCaC1
Page 96 and 97: Location : S-7Parent Material :glac
Page 98 and 99: Soil Map Unit 8These soils have med
Page 100 and 101: Elevation : 6,250 ft . ASL (1,910 m
Page 102 and 103: orizonPyrophosphate96ANALYTICAL DAT
Page 104 and 105: Slope : 5%Aspect :northElevation :
Page 106 and 107: Soil Map Unit 10Map Unit 10 soils h
Page 108 and 109: Vegetation : Abies lasiocarpa (shru
Page 110 and 111: 104ANALYTTCAL DATAlOBHorizonDepthcm
Page 112 and 113: A further separation of sands is ma
Page 116 and 117: 110TABLE 13 . UNIFIED SOIL CLASSIFI
Page 118 and 119: GLOSSARYThis is included to define
Page 120 and 121: illuviation -the process of deposit
Page 122 and 123: pH - a notation used to designate t
Page 124: LATIN AND COMMON NAMES OF PLANTS ME
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Detailed Soil Survey of the Mount Revelstoke Summit Area.

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