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​ト​ラ​キ​ア (Wrath of Sparta) Tier 1

Perennial Irrigation

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. In 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.

日本語化: JapanTotalWarとは

Node Set Tier 1

research_points 2300

cost_per_round 0

Effects

• -6% ​農​業​施​設​の​建​設​費 (​全​て​の​領​土)
• +6% ​農​業​に​よ​る​収​入 (​全​て​の​領​土)