{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.wm-ear-003","code":"world-p10-soil-and-agricultural-land","url":"https://ver.cy/models/world-p10-soil-and-agricultural-land/","name":"Soil & Agricultural Land","alternateNames":["P10"],"kind":"world-model","status":"legacy","version":"0.2.0-legacy","language":"en","classifiers":{"family":"World Models","category":"Physical world and living systems","entryKind":"standalone-mm","plane":"","domain":["PHY.EAR.SOI"],"industry":["Cross-industry"],"navPath":"NAV.PHY.EAR.SOI","tags":["soil","phy.ear.soi"],"facets":{}},"whatItIs":"This meta-model describes soil as a mapped, sampled and classified resource and the agricultural capability that follows from it: profiles and horizons, laboratory chemistry and physical properties, capability and suitability ratings, and the degradation, contamination and management history that change land condition over time.","purpose":"Soil quality and agricultural capability","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["It is its own model because soil is a slow-moving stock that is measured at points, mapped as units and managed as fields, three grains that must be reconciled explicitly."],"structure":{"bundles":[{"id":"soilResource","name":"soilResource","description":"What the soil is and where each kind occurs","layers":[{"id":"profileAndHorizon","name":"profileAndHorizon","description":"described profiles, their horizons and diagnostic features","findings":[]},{"id":"classificationUnit","name":"classificationUnit","description":"classification terms assigned to profiles and units","findings":[]},{"id":"soilMapping","name":"soilMapping","description":"map units, polygons and digital soil property surfaces with their uncertainty","findings":[]}]},{"id":"fertility","name":"fertility","description":"What the soil can support","layers":[{"id":"chemistryAndNutrient","name":"chemistryAndNutrient","description":"organic carbon, nutrients, pH, salinity and cation exchange","findings":[]},{"id":"physicalProperty","name":"physicalProperty","description":"texture, bulk density, structure, depth and water holding capacity","findings":[]},{"id":"capabilityAndSuitability","name":"capabilityAndSuitability","description":"capability classes and crop-specific suitability ratings with their limiting factors","findings":[]}]},{"id":"condition","name":"condition","description":"How land condition changes and why","layers":[{"id":"degradationProcess","name":"degradationProcess","description":"erosion, compaction, salinization, acidification and organic matter loss","findings":[]},{"id":"contaminationStatus","name":"contaminationStatus","description":"contaminant findings, thresholds exceeded and remediation state","findings":[]},{"id":"managementPractice","name":"managementPractice","description":"tillage, cover, amendment and irrigation practice as it bears on soil state","findings":[]}]}]},"agentConduct":{"may":[],"mustNot":[],"requiresHuman":[]},"ethics":{"considerations":[],"affectedParties":[]},"owners":{"steward":"An ecology and agronomy commons steward keeps the soil register: it maintains the map, accredits laboratories, publishes capability and condition and curates the long profile archive.","roles":[],"masterSystems":[]},"relations":[{"target":"world.landParcelAndCadastre","type":"references","note":"fields and units are located within registered land units and their holders resolve there"},{"target":"world.terrainAndLandform","type":"references","note":"slope, aspect and relief are limiting factors in capability and erosion assessment"},{"target":"world.subsurfaceAndMineralResource","type":"references","note":"parent material links the weathering profile to bedrock"},{"target":"world.waterBodyAndHydrology","type":"references","note":"infiltration, runoff and nutrient loading connect soil state to water response"},{"target":"world.ecosystemAndBiome","type":"references","note":"soil condition is an input to ecosystem condition and process accounts"},{"target":"world.agricultureAndHusbandry","type":"references","note":"cropping, grazing and amendment operations are described there and reference fields here"},{"target":"world.materialAndSubstance","type":"references","note":"contaminant identity, hazard class and thresholds resolve there"},{"target":"world.emissionAndEnvironmentalFlux","type":"references","note":"soil carbon change and nutrient losses are accounted as fluxes there"},{"target":"world.officialStatisticsAndIndicators","type":"references","note":"published land statistics respect the cohort grain defined there"},{"target":"world.privacyAggregationAndCohortFloor","type":"references","note":"published land statistics respect the cohort grain defined there"},{"target":"fao-soil-classification","type":"imports","note":"EXTEND: the classification backbone for units and profiles"},{"target":"iuss-world-reference-base","type":"imports","note":"ALIGN: reference groups and qualifiers for cross-register comparability"},{"target":"iso-28258-soil-data-exchange","type":"imports","note":"COMPOSE: the site, profile, horizon and result exchange structure"},{"target":"vr.wm-ear-004","type":"requires"},{"target":"vr.wm-eco-014","type":"requires"},{"target":"vr.wm-liv-006","type":"requires"},{"target":"vr.wm-liv-009","type":"requires"},{"target":"vr.wm-mat-002","type":"requires"},{"target":"vr.wm-plc-001","type":"requires"},{"target":"vr.wm-plc-003","type":"requires"}],"interaction":{"identity":{"applicability":"required","items":["soilUnit: a mapped soil unit; key attributes: unit identifier, geometry, dominant classification term, component proportions, map scale, purity","soilSample: material taken for analysis; key attributes: sample identifier, source horizon reference, depth interval, sampling date, laboratory reference, analysed determinands"]},"properties":{"applicability":"not-applicable","items":[]},"recognition":{"applicability":"optional","items":[]},"capabilities":{"applicability":"required","items":["soilProfileDescribed: a pit or auger site was described and classified","soilSampleAnalyzed: laboratory results were returned and attached to a horizon","soilMapUnitRevised: unit boundaries or component proportions changed after new evidence","capabilityClassReassessed: the general capability rating for a unit changed","erosionEventRecorded: a measurable loss of topsoil was observed after rainfall, wind or cultivation","salinizationDetected: salinity crossed the threshold defined for a unit or field","contaminationConfirmed: a contaminant exceeded its threshold at a sampled location","remediationCompleted: works to restore soil condition finished and post-works results were recorded"]},"hazards":{"applicability":"optional","items":[]},"interfaces":{"applicability":"required","items":["laboratoryAnalysisContract: terms for submitting samples and returning results, including method declaration, detection limits and reanalysis","farmSoilDataSharingContract: terms under which field-level results held by a holder are shared with the steward, including the grain at which they may be republished","contaminationDisclosureContract: terms for disclosing a confirmed contamination finding to an entitled party such as a prospective occupier or a land registrar","publicSoilMap: soil units, dominant classification and capability class; omits sample-level results and any holder-linked field data","holderFieldReport: the complete profile, laboratory and condition record for the fields of one holder; omits neighbouring holdings","landCapabilityStatistics: area by capability class, suitability and degradation status; omits unit geometry and holder identity"]},"context":{"applicability":"required","items":["Field-level data contributed by a holder remains that holder's under S1, republication happens only at the grain agreed in an S2 access contract and constrained by S5 cohort rules, and reads of holder-linked records are logged in S4."]}},"sources":[],"openQuestions":["Superseded by a researched world model? Map this legacy card to its successor or retire it."],"resources":{"spec":"/models/world-p10-soil-and-agricultural-land/spec.yaml","agents":"/models/world-p10-soil-and-agricultural-land/AGENTS.md"},"provenance":{"origin":"legacy MMAS card (world-models v0.2)","builtFrom":["models/world-p10-soil-and-agricultural-land/spec.yaml","models/docs/planet-nature/P10-soil-and-agricultural-land.md"],"providers":[],"researchStatus":"legacy","generatedAt":"","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"derived","purpose":"filled","distinguishingFeatures":"derived","structure":"thin","agentConduct":"missing","ethics":"missing","owners":"filled","relations":"filled","interaction.identity":"derived","interaction.properties":"not-applicable","interaction.recognition":"missing","interaction.capabilities":"derived","interaction.hazards":"missing","interaction.interfaces":"derived","interaction.context":"filled","sources":"missing"},"notes":{"whatItIs":"First sentence of the legacy card introduction.","interaction.capabilities":"Legacy events listed as state transitions.","structure":"Legacy card: layers named, findings and questions never written.","interaction.properties":"Institutional or informational subject: no invented physical properties."},"score":0.5}}