Detailed Soil Survey of the Mount Revelstoke Summit Area.
Detailed Soil Survey of the Mount Revelstoke Summit Area. Detailed Soil Survey of the Mount Revelstoke Summit Area.
Soil Map Unit 3(Orthic and Cumulic Regosol)The imperfectly to somewhat poorly drained soils of this mapunit occur in weakly defined snowmelt runoff channels and depressionalareas of late snow cover and seasonal ponding of meltwater (Plate 3) .Plant cover is predominantly Luetkea pectinatain the runoff channels andCarex nigricans or Luetkea pectinata in the depressional areas .These soils have deep(20 to 40 cm), black, organic Oh surfacelayers which contain 30 tois well decomposed and is65 percent organic matter . The organic mattermixed with predominantly silt-sized alluvialmaterials overlying till . Bulk density of the Oh horizons is very low,3in the order of 0 .3 g/cm , and there are few coarse fragments . Thinvolcanic ash layers often occur at approximately the 20 cm depth . The Ohlayers overlie a yellowish brown C horizon,thus the soils are classifiedas Regosols .The C horizons consist of the sandy loam till materials thatcover most of the Summit area .These soils do not display mottling or gleying and are betterdrained than the soils of mapunit 4 and do not have a hummocky surfacelike the soils of map unit 6 .The Regosols of map unit 7are betterdrained thanthe map unit 3 soils and do not have organic layers .Thefollowing isa brief description of an Orthic Regosol typical of map unit3 soils .Horizon Depth (cm) Color Texture % C .F . % O.M .Ohl 0 - 7 black organic 0 64 .9Oh2 7 - 19 black organic 0 32 .0ash 19 - 21 yellowish brown SiL 0Oh3 21 - 31 black organic 0 37 .8C 31+ yellowish brown GSL 25
243-aOh1Oh2ashOh33-b 3-cPlate 3 .The Regosolic soils of map unit 3 have deep, dark coloredorganic layers and often buried layers of volcanic ash (3-c) .These soils are found in weakly incised snowmelt runoff channels(3-a) under Luetkea communities and in late snowmelt depressionsunder Carex vegetation (3-b) . See Table 2 or the soils maplegend for a description of the mapping symbols .
- Page 2 and 3: DETAILED SOIL SURVEYOF THEMOUNT REV
- Page 4 and 5: PageSOIL PRODUCTIVITY 53BIBLIOGRAPH
- Page 6 and 7: LIST OF PLATESPagePLATE 1 . Humo-Fe
- Page 8 and 9: INTRODUCTIONIn recent years Parks C
- Page 10 and 11: THE STUDY AREAGeographic LocationTh
- Page 12 and 13: calcareous rocks in the study area
- Page 14 and 15: Mount Copeland (6,060 feet ASL) .At
- Page 16 and 17: METHODS OF INVESTIGATIONField Techn
- Page 18 and 19: 116 . Pyrophosphate-Extractable Alu
- Page 20 and 21: 13FIGURE 2 .DIAGRAM OF A SOIL PROFI
- Page 22 and 23: 15Soils of the Summit AreaThe soils
- Page 24 and 25: MISCELLANEOUS MAPPING UNITSRBedrock
- Page 26 and 27: AhBhf20 cm-Plate l .The Humo-Ferric
- Page 28 and 29: 21extremely sloping land surfaces o
- Page 32 and 33: 25These soils have severe limitatio
- Page 34 and 35: 27Horizon Depth (cm) Color Texture
- Page 36 and 37: 295-a20 cm-5 -bPlate 5 .The hummock
- Page 38 and 39: 31stands are made up of Abies lasio
- Page 40 and 41: 6-aAeBfR20 cm-6 -bPlate 6 .The Lith
- Page 42 and 43: 37INTERPRETATIONSSoil Properties an
- Page 44 and 45: 39TABLE 4,GUIDES FOR ASSESSING SOIL
- Page 46 and 47: 41TABLE 6 .GUIDES FOR ASSESSING SOI
- Page 48 and 49: 43TABLE 8 .GUIDES FOR ASSESSING SOI
- Page 50 and 51: 45especially where bedrock is close
- Page 52 and 53: TABLE 10 . DEGREE AND NATURE OF SOI
- Page 54 and 55: 49The soils of map units 1, 8 and 9
- Page 56 and 57: 51compounds thus inhibiting percola
- Page 58 and 59: 53PRODUCTIVITYProductivity ratings
- Page 60 and 61: S4 XTABLE 11 . DISTRIBUTION OF SOIL
- Page 62 and 63: 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
243-aOh1Oh2ashOh33-b 3-cPlate 3 .The Regosolic soils <strong>of</strong> map unit 3 have deep, dark coloredorganic layers and <strong>of</strong>ten buried layers <strong>of</strong> volcanic ash (3-c) .These soils are found in weakly incised snowmelt run<strong>of</strong>f channels(3-a) under Luetkea communities and in late snowmelt depressionsunder Carex vegetation (3-b) . See Table 2 or <strong>the</strong> soils maplegend for a description <strong>of</strong> <strong>the</strong> mapping symbols .
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