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Emirate of Cordoba (Age of Charlemagne) Civil Tier 4

Irrigation Techniques

Agriculture was - and remains - a difficult endeavour. Water is the crucial factor: rivers and flood plains might be good for growing crops, but a flood can wash away good soil instead of renewing the land. In more arid areas, farmers are reliant on canals and qanats for irrigation, and water must be managed carefully. Basic irrigation systems were widespread in the ancient world because they were simple to maintain. Perennial irrigation was rarer, and required longer canal systems, a method of storage, and better maintenance to ensure that silt and salt build-up was kept in check. For example, in sun-scorched Mesopotamia the river system was able to supply water to the surrounding arable land in the dry season through a system of canals, closed off by dykes and sluice gates. Water was stored in reservoirs, either natural or man-made, and then lifted into the irrigation channels. While this was a labour-intensive task, the results of such toil were remarkable and hugely beneficial to harvests in the area.

Node Set Civil Tier 4

research_points 0

cost_per_round 0

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Requires
Requires Technologies	Book Collection

Enables
Enables Technologies	Military Remuneration
Enables Buildings	Manor Farm Olive Oil Mill