Jeju Volcanic Island and Lava Tubes – Korea’s Natural Heritage

Description: Uncover the sophisticated logistics system of the Goryeo Dynasty that powered its economy and administration. Jounje—the ancient grain transport network—was Korea’s pre-modern supply chain engine.
The term "Jounje" (조운제, 漕運制) refers to the grain transport system of the Goryeo Dynasty (918–1392), a highly organized logistical network responsible for collecting, storing, and transporting grain—especially rice—from provincial regions to the central government in Gaegyeong (modern-day Kaesong).
This system was foundational for state function. It ensured the capital had enough food, allowed for tax collection in-kind, and supported military campaigns. Jounje wasn’t just about agriculture—it was the engine of governance and public finance in premodern Korea.
In the agrarian society of Goryeo, grain was more than food—it was currency. Farmers paid taxes in rice, officials were paid in rice, and surplus grain was stockpiled as insurance against famine. By controlling grain, the state controlled economic stability and social order.
Grain also fueled infrastructure projects, religious donations to Buddhist temples, and diplomatic gifts to neighboring states. The centralization of grain through Jounje allowed the monarchy to maintain power across a decentralized society marked by aristocratic landholders and regional governors.
The Goryeo dynasty built extensive infrastructure to support Jounje. This included granaries (juchang), warehouses, river ports, and transport ships. The primary transport routes followed Korea’s major rivers—like the Han, Nakdong, and Geum—which were navigable by barges and flat-bottomed boats.
Inland regions without river access relied on overland transport using oxen and carts. Some districts even maintained their own fleets. It’s remarkable to consider that centuries before modern supply chains, Goryeo had an interlinked, cross-modal logistics system guided by seasonal schedules and weather forecasting.
The Jounje system required a specialized bureaucracy. The central Ministry of Revenue (Hojo) coordinated operations, while local grain offices managed collection. Regional magistrates (moksa) were responsible for fair taxation and preventing fraud or hoarding.
Each grain shipment was meticulously recorded, weighed, and sealed. Couriers (paekpa) carried dispatches about deliveries. Corruption or mismanagement was harshly punished, as lost grain could mean famine or rebellion. The entire process reflected Goryeo’s focus on documentation, accountability, and centralized control.
Like any large-scale system, Jounje faced issues: theft, spoilage, natural disasters, and bureaucratic corruption. River piracy and flooding could devastate shipments. In response, some kings introduced reforms such as rotating local officials, improving grain storage techniques, and decentralizing emergency reserves.
King Gojong (13th century) notably restructured Jounje during the Mongol invasions to ensure food supply to warfronts. These reforms ensured resilience and demonstrated how logistics was tied directly to national security.
The principles of Jounje—centralized supply chains, standardized records, strategic reserves—mirror modern logistics systems. Today’s food distribution networks in Korea still reflect this legacy, with national warehouses and disaster preparedness drills involving rice stocks.
More broadly, Jounje highlights how effective logistics can underpin governance, social stability, and even identity. It’s a reminder that great civilizations don’t just build palaces—they build systems that feed the people and support the state.
No, but Goryeo’s implementation was particularly centralized and sophisticated. Similar grain transport systems existed in China and Japan, but Korea’s focus on riverine logistics made it notably efficient.
Grain was measured in units called seok (석), using standardized wooden measuring boxes. Taxes were assessed based on land size and productivity, with audits to prevent underreporting.
Yes. Most transport occurred post-harvest (fall and early winter) when rivers were still navigable but traffic was lighter. Weather forecasts and lunar calendars helped plan routes and prevent losses.
Indirectly. While primarily for state use, efficient grain transport stabilized food supply and prices. In times of famine, state granaries provided relief, though distribution fairness varied by era and governor.
Yes. Sites like the Gongju Juchang and archaeological museums in Kaesong and Seoul exhibit granary foundations, transport tools, and Goryeo-era documents that detail the Jounje system in action.