Local Irrigation Canals
Small canals, ditches, sluices, and field channels used by villages to distribute water before large regional canal networks.
Core metadata
- ID: irrigation_canals_local
- Era: Ancient
- First known date: -3000 (century)
- Region: Southwest Asia and early farming societies
- Review status: source_checked
- Maturity: established
Prerequisites
- Basic Geometry and Surveying (basic_geometry_and_surveying)
- Irrigation (irrigation)
- Labor Specialization (labor_specialization)
Dependents
- Irrigation Sluice Gates (irrigation_sluice_gates)
- Norias & Water-Lifting Wheels (norias_water_wheels)
Fields
Field lanes
- Water & Sanitation Systems: Conveyance & Distribution
- Civil Engineering & Built Environment: Water & Sanitation Infrastructure
Node sources
- Water Supply System (Encyclopaedia Britannica, 2026, textbook) • Supports: node, maturity
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 3
- Average edge confidence: 70%
- Prerequisite sources: 3
- expert_inference: 3
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Irrigation (irrigation) | enabling | 68% | expert_inference | Irrigation provides a capability that enables this technology without being the only possible path. |
|
| Basic Geometry and Surveying (basic_geometry_and_surveying) | historical_predecessor | 75% | expert_inference | Basic Geometry and Surveying is an earlier historical predecessor or foundation, not a one-to-one engineering dependency. |
|
| Labor Specialization (labor_specialization) | enabling | 68% | expert_inference | Labor Specialization provides a capability that enables this technology without being the only possible path. |
|
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