ASRIS Technical Specifications V1.6

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Table 2: The main soil properties included in ASRIS and their significanceAttributeSignificanceTextureClay contentCoarse fragmentsBulk densitypHOrganic carbonDepths to A1, B2, impedinglayers, thickness of solum andregolithθ –10 kPaθ –1.5MPaPlant available water capacityKsatElectrical conductivityAggregate stabilitySum of exchangeable basesCECESPASC (Great Group)WRBSubstrate typeSubstrate permeabilityAffects most chemical and physical properties. Indicates someprocesses of soil formationAs for textureAffects water storage and nutrient supplySuitability for root growth. Guide to permeability. Necessaryfor converting gravimetric estimates to volumetricControls nutrient availability and many chemical reactions.Indicates the degree of weatheringGuide to nutrient levels. Indicator of soil physical fertilityUsed to calculate volumes of water and nutrient (e.g. plantavailable water capacity, storage capacity for nutrients andcontaminants)Used to calculate water availability to plants and watermovementUsed to calculate water availability to plants and watermovementPrimary control on biological productivity and soil hydrologyIndicates likelihood of surface runoff and erosion. Indicator ofthe potential for water logging. Measure of drainagePresence of potentially harmful salt. Indicates the degree ofleachingGuide to soil physical fertility. Potential for clay dispersion andadverse impacts on water qualityGuide to nutrient levels. Indicates the degree of weatheringGuide to nutrient levels. Indicates the degree of weatheringGuide to clay mineralogy (when used with clay content)Indicator of dispersive clays and poor soil physical propertiesAustralian Soil Classification shorthand for communicationacross AustraliaWorld Reference Base shorthand for communicationinternationallyControl on soil formation, landscape hydrology, groundwatermovement, nutrients and solutesAffects landscape hydrology and groundwater movement8
3 Development of ASRISASRIS was initiated through the National Land and Water Resources Audit (NLWRA) in 1999 (see NLWRA2002, Henderson et al. 2002). The initial release (ASRIS 2001) provided primary inputs for a broad range ofsimulation modelling studies supported by the NLWRA. These studies provided continental perspectives onerosion, sediment delivery to streams, nutrient cycling, acidification, net primary productivity, and waterquality (NLWRA 2001, 2002).The ASRIS 2001 team achieved a great deal given the short time available and daunting nature of the task(see Johnston et al. 2003). During the project, the core team and the National Committee on Soil andTerrain (NCST) (which acted as the Steering Committee) identified a series of deficiencies in the landresource information base for Australia. They also identified a logical pathway for overcoming theseproblems to ensure a greatly improved system for providing information to support natural resourcemanagement in Australia. The task was recognized to be long-term, and requiring a permanent projectteam (NLWRA 2002).With this background, the Australian Collaborative Land Evaluation Program (ACLEP) was commissioned bythe Department of Agriculture, Fisheries and Forestry (DAFF) to provide land managers, regionalorganizations, industry partners, policy specialists and technical experts in natural resource management,with online access to soil and land resource information, and assessments of land suitability. 1 Theinformation is to be available at a range of scales, and in a consistent and easy-to-use format acrossAustralia. The activity must also provide a scientific framework for assessing and monitoring the extent andcondition of Australia’s soil and land resources.ASRIS provides the following:• A hierarchy of land units for the Australian Soil Resource Information System to allow comprehensivereporting on soil resources and land suitability from the National down to the Subregional scale. Upperlevels of the hierarchy are generated using refinements of existing geomorphic maps and digital terrainanalysis. Other information sources include results from continent-wide calculations of the waterbalance and geologic mapping. Lower levels are derived from the contributing state, territory andfederal soil and land databases. There is also the facility to display information on soil and land inrelation to other high-level stratifications including the Interim Biogeographic Regions of Australia(v6.1), Groundwater Flow Systems, and catchment management boundaries.• Consistent soil and land attributes are presented for units at the lowest levels in the hierarchy andthese are used to generate summaries for higher-level units. The land qualities relate to the intrinsiccapability of land to support various land uses – they relate to soil depth, water storage, permeability,fertility, and erodibility.• ASRIS is updated regularly. Check the website (www.asris.csiro.au) for the latest information (seehttp://www.asris.csiro.au/new.html). ASRIS uses SQL Server, the Arc Spatial Data Engine (ArcSDE), ArcInternet Map Server (ArcIMS) and ArcGIS Server.• ASRIS is compliant with standards agreed by the Open GIS Consortium. It hosts web map services(WMS) that enable integration with online viewers such as Google Earth and NASA World Wind.• ASRIS includes a soil profile database with fully characterized sites that are known to be representativeof significant areas and environments. The profile database will be revised and expanded.1 The term land capability was used in the original brief – this term is usually associated with the United States Department of Agriculture eight-classsystem for classifying land. The term land suitability is preferred here (see Dent and Young 1981, McKenzie 1991).9
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: estimates of soil erosion by water.
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 and 42: Table 15: Landform elements (after
Page 43 and 44: Table 17: Described gilgai componen
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,
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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
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CONTACT USt 1300 363 400+61 3 9545
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ASRIS Technical Specifications V1.6

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