ASRIS Technical Specifications V1.6

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11.3 Land SurfaceDescriptions of the land surface are defined by: microrelief type, the described gilgai component (ifpresent), biotic agent, and biotic component. The descriptors follow the definitions of NCST (2009) and thecodes are presented in Table 16, Table 17, Table 18, and Table 19 respectively.Rock outcropRock outcrop is the percentage of the land-unit tract (usually a land facet) occupied by rock outcrop. Care isneeded to avoid double counting with surface coarse fragments.Surface coarse fragmentsThe areal percentage of surface coarse fragments is recorded as a percentage for the land facet (Table 15)or land system if it is the lowest level recorded. These variables are recorded for five size classes: gravelly(2–60mm), cobbles (60–200 mm), stones (200–600 mm), boulders (600 mm–2m) and large boulders (>2 m).Table 16: Microrelief typeCodeZNRACDGHIKLMNOPRSTUWCode descriptionNo microreliefMicrorelief not recordedLattice GilgaiCrabhole GilgaiDebil-debilContour GilgaiSpring hollowSinkholeKarst microreliefLinear GilgaiMelonhole GilgaiNormal GilgaiOtherSpring moundTerracettesMass movement microreliefContour trenchMound/depressionmicroreliefSwamp hummock32
Table 17: Described gilgai component (if present)CodeDMSCode descriptionDepressionMoundShelfTable 18: Biotic agent for microrelief (if present)CodeABMNOTVCode descriptionAntBirdHumanAnimalOtherTermiteVegetationTable 19: Biotic component of microrelief (if present)CodeDHMOTCode descriptionDepressionHoleMoundOtherTerrace33
Page 1: SUSTAINABLE AGRICULTURE FLAGSHIPThe
Page 6 and 7: Table 1: Complementary benefits of
Page 8 and 9: Table 62: The num_est_method_type t
Page 11 and 12: 1 SummaryThis document specifies th
Page 13 and 14: 2 User needs for soil and land reso
Page 15 and 16: 2.3 Mapping, monitoring, modelling,
Page 17 and 18: estimates of soil erosion by water.
Page 19 and 20: 3 Development of ASRISASRIS was ini
Page 21 and 22: Handbook (NCST 2009) will be famili
Page 23 and 24: 4.2 Upper levels of the hierarchyTh
Page 25 and 26: 5 Accuracy, precision and a basis f
Page 27 and 28: 1.0MeanProbability5 %quantile95 %qu
Page 29 and 30: 6 Level-1 descriptors (land provinc
Page 31 and 32: Figure 5: Relative reliefFigure 6:
Page 33 and 34: Figure 7: Average annual excess wat
Page 35 and 36: 10 Level-5 descriptors (land system
Page 37 and 38: 10.3 LandformRelief/modal slopeReli
Page 39 and 40: 11 Level-6 descriptors (land facets
Page 41: Table 15: Landform elements (after
Page 45 and 46: (a) (b) (c)A11A11A1 1A21A222B23B22B
Page 47 and 48: Layer-1 Texture and clay contentThe
Page 49 and 50: ZL Silty loam ZLA Sapric silty loam
Page 51 and 52: Coarse fragmentsCoarse fragments ar
Page 53 and 54: pH profileThe pH in a 1:5 CaCl 2 so
Page 55 and 56: Total thickness of A horizonThe tot
Page 57 and 58: Table 31: Method for the estimation
Page 59 and 60: Profile availablewater capacityAdju
Page 61 and 62: Table 32: Permeability classesClass
Page 63 and 64: Table 34: Estimation method for ele
Page 65 and 66: Exchangeable bases, CEC, and ESPEst
Page 67 and 68: Australian Soil ClassificationThe A
Page 69 and 70: FH Palic GZ Bleached-Orthic IS Ferr
Page 71 and 72: Table 47: Reference Soil Group code
Page 73 and 74: Local taxonomic classIf available,
Page 75 and 76: 12 Soil Profile DatabaseAs noted ea
Page 77 and 78: Figure 12: Database design for ASRI
Page 79 and 80: Table 57: The ref_sites tableColumn
Page 81 and 82: Table 61: The param_num_method tabl
Page 83 and 84: Table 68: The codes table.Column Na
Page 85 and 86: 15 ReferencesACLEP (in prep.) SITES
Page 87 and 88: McKenzie NJ, Ryan PJ (1999) Spatial
Page 89 and 90: Appendix 1: Conversion for pH in wa
Page 92:
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ASRIS Technical Specifications V1.6

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