Rize

Rize has only around 151,617 people in its central district, but it sits at the control point of a crop that organizes an entire stretch of Turkiye's eastern Black Sea coast. The provincial capital stands 63 metres above sea level on a narrow shelf between the sea and steep mountains. What most summaries miss is that the tea bushes are spread across the province while the city concentrates the buyers, processors, bureaucracy and outbound routes. Rize is not just a place where tea grows. It is the control room of a state-shaped monocrop economy.

CAYKUR says the tea sector is the region's socio-economic locomotive and that the company alone runs 49 fresh-tea processing factories, employs 11,931 people and buys roughly 55% to 60% of the region's fresh tea. Scientific Reports notes that Rize accounts for more than 60% of Turkiye's tea cultivation area. Anadolu reported that the province generated 48% of national tea export revenue in the first nine months of 2025, sending tea worth $10.7 million abroad. So a small provincial capital helps decide how cash moves through the surrounding valleys: what gets bought, processed, shipped and paid for.

That concentration gives Rize both strength and fragility. Tea keeps steep land productive and anchors thousands of livelihoods, but it also locks land, labour and local politics into one crop. Climate pressure makes that dependence more obvious. A 2025 Scientific Reports study describes tea as a strategic regional product already exposed to shifts in rainfall, humidity and temperature, and late-2024 reporting showed the harvest stretching into December for the first time. The city's infrastructure push is therefore not cosmetic. Rize-Artvin Airport has handled more than 2.3 million passengers since opening on 14 May 2022, and the Iyidere Logistics Port, 20 kilometres from the city centre, is designed for 13 million tons of annual capacity. Both projects widen the routes through which Rize can move labour, visitors and cargo instead of relying on a single road-bound tea economy.

The biological parallel is the leafcutter ant. A leafcutter colony can look busy and varied on the surface, but its survival depends on protecting one cultivated food source and the transport network around it. Rize does the urban equivalent. Keystone-species dynamics explain why tea supports so many secondary businesses, path dependence explains why the province keeps doubling down on the crop, and resource allocation explains why transport infrastructure matters so much in a narrow coastal niche.