TT-OS Soil Health Verification Protocol

Version 1.0 | Institutional Methodology Standard

Purpose: This protocol defines the standard TT-OS methodology for collecting, verifying, analysing and maintaining soil intelligence. The objective is to produce consistent, repeatable and evidence-based soil information that supports Plant Passports, agroforestry planning, restoration programmes, biodiversity monitoring and institutional decision intelligence.

Method Used

TT-OS Method Component	Status
Field Observation	Required
GPS Referencing	Required
Composite Soil Sampling	Required where sampling is undertaken
Laboratory Analysis	Where applicable
Photographic Verification	Required
Ecological Interpretation	Required
Multi-Evidence Verification	Required
Decision Pathway Analysis	Required
Institutional Knowledge Inheritance	Required
Continuous Monitoring	Required where project scope allows

Objectives

Produce repeatable soil observations.
Standardise sampling across projects.
Support evidence-based land management.
Generate auditable Plant Passport data.
Improve confidence through continuous verification.
Build permanent institutional knowledge.

Stage 1 — Site Planning

Objective: Define the management unit before any sampling begins.

Identify the survey area.
Allocate a unique Site ID.
Record GPS coordinates and, where possible, a GPS polygon.
Assign TT-OS Zone Code.
Record land use and vegetation type.
Review previous surveys if available.

Outputs: Site Identification Record, GPS Polygon, Baseline Site Photograph.

Stage 2 — Visual Field Assessment

Objective: Document current ecological conditions before disturbing the soil.

Field Checklist

Vegetation cover, canopy density, surface litter, root exposure, erosion, surface moisture, drainage, earthworm casts, fungal activity, soil cracking and compaction indicators.

Photographs Required

Entire plot, four cardinal directions, representative vegetation, ground cover and sampling location.

Stage 3 — Soil Sampling Protocol

Step 1 — Select Representative Sampling Points

Avoid animal paths, compost piles, drainage channels, gateways and recently disturbed areas.

Step 2 — Excavate Soil Pits

Recommended depth is 30–60 cm. Record horizon depth, colour, rooting, stones and moisture.

Step 3 — Collect Composite Samples

Collect multiple sub-samples.
Mix thoroughly.
Remove stones and debris.
Label sample immediately.

Required metadata: Sample ID, date, collector, GPS, depth and zone.

Stage 4 — Field Tests

Soil Texture

Use ribbon test to distinguish sand, silt and clay dominance.

Soil Structure

Assess aggregate stability, friability, rooting and pore spaces.

Biological Activity

Record earthworms, roots, fungal hyphae, insects and decomposition.

Moisture

Assess dry, moist or saturated conditions.

Surface Stability

Record erosion, crusting, runoff and infiltration.

Stage 5 — Laboratory Analysis

Category	Parameters
Chemical Properties	pH, Electrical Conductivity, Soil Organic Carbon, Organic Matter, Total Nitrogen, Available Phosphorus, Exchangeable Potassium, Calcium, Magnesium and Sulphur.
Micronutrients	Zinc, Boron, Copper, Iron and Manganese.
Physical Properties	Bulk Density, Texture, Moisture Capacity and Aggregate Stability.
Biological Indicators	Microbial biomass, respiration, enzyme activity and microbial diversity where available.

Stage 6 — Evidence Verification

Evidence quality is strengthened through multiple verification pathways:

Repeat sampling
Independent observer review
Laboratory confirmation
GPS validation
Photographic verification
Historical comparison
Remote sensing where appropriate
Seasonal re-observation

Stage 7 — TT-OS Analysis

Field Observation ↓ Verification ↓ Laboratory Results ↓ Ecological Interpretation ↓ Plant Passport Update ↓ Confidence Calculation ↓ Decision Support ↓ Institutional Memory

Stage 8 — Plant Passport Integration

Verified soil intelligence updates the associated Plant Passport. Fields may include Soil Type, Preferred pH, Organic Carbon, Drainage, Moisture Preference, Nutrient Status, Suitability Rating, Evidence References, Confidence Score and Last Verification Date.

Stage 9 — Decision Intelligence

TT-OS converts verified evidence into practical recommendations. Examples include species selection, fertility improvement, compost application, mulching, water management, agroforestry redesign, restoration priorities and monitoring frequency. Recommendations remain directly traceable to supporting evidence.

Stage 10 — Institutional Knowledge Inheritance

Every completed assessment becomes part of TT-OS institutional memory. Validated soil intelligence may subsequently be inherited by Plant Passports, Restoration Programmes, Species Intelligence, Food System Intelligence, Climate Resilience Intelligence, Carbon Assessments, Natural Capital Assessments, Sustainable Architecture and Business and Economic Intelligence.

This prevents duplicate work and ensures that verified knowledge continues to generate value across multiple domains.

Soil Health Intelligence Workflow

Soil assessment within TT-OS is not treated as a single laboratory test. It is a structured intelligence workflow that combines field observations, laboratory analysis, ecological interpretation, verification and decision support.

Planning and Site Definition

Site boundary confirmation, GPS coordinates, land use classification, agroforestry zone allocation, historical management review and baseline photography.

Field Assessment

Vegetation condition, canopy cover, ground cover, erosion, water movement, root development, soil colour, compaction, biological activity and visible fungal activity.

Soil Sampling

Multiple sub-samples, standard depths, composite sample preparation, labelling, GPS recording and chain-of-custody documentation.

Ecological Interpretation

Interprets laboratory values in context: root growth limits, nutrient deficits, organic matter trends, biological activity and restoration success.

Quality Assurance Checklist

Verification Item	Required
Site ID assigned	Yes
GPS recorded	Yes
Plot photographs completed	Yes
Soil pit documented	Yes
Composite sample collected	Where applicable
Laboratory metadata recorded	Where applicable
Field observations completed	Yes
Verification pathway recorded	Yes
Plant Passport updated	Where relevant
TT-OS Knowledge Object created	Yes for validated assessments

Geospatial, Temporal and Repair Hardening

Geospatial Logging

Every field sample and profile exposure should capture WGS 84 latitude and longitude using EPSG:4326, plus elevation where available.

Temporal Baseline

Sampling cycles should distinguish baseline, pre-wet season, post-rainy season, post-harvest and repair follow-up.

Repair Triggers

Critical acidity, compaction, SOC decline and missing metadata are routed to review rather than passively published.

Agent Gates

Agent 4 checks structural evidence integrity. Agent 7 checks public release risk, anomaly flags and claim boundaries.

Boundary

This protocol demonstrates due diligence and repeatability. It does not guarantee yield, certification, carbon credit outcomes, regulatory compliance or treatment outcomes.

Plant Passport Template | Universal Decision Intelligence | Methodology / Standards / Evidence

Public use caution

Public material is evidence-bounded and Founder-gated. It is not medical, legal, financial or investment advice.