Zao Zhi (枣祗; original surname Ji 棘; died after 196 CE) was an officer under Cao Cao during the late Eastern Han dynasty. He is best remembered as the principal advocate and organiser of the tuntian (屯田, military-agricultural colony) system, which provided the economic foundation for Cao Cao’s military campaigns and eventual domination of northern China. Zao Zhi also distinguished himself as Magistrate of Dong’a, successfully defending the city against the forces of Lü Bu and Chen Gong.
Biography
Early life and joining Cao Cao
Zao Zhi was originally surnamed Ji (棘). His ancestors changed the family name to Zao (枣) to avoid retribution from enemies. He was from Changshe County in Yingchuan Commandery (modern Changge City, Henan).
Zao Zhi first appears in the historical record around 189 CE, during the chaos that followed the death of Emperor Ling and Dong Zhuo’s seizure of the capital. At this time, Zao Zhi was already a man of considerable reputation. He joined Cao Cao when Cao Cao raised an army to oppose Dong Zhuo’s tyranny, and the two ‘raised righteous troops together, campaigning side by side’ (共举义兵，周旋征讨). Zao Zhi quickly gained Cao Cao’s trust and respect.
Magistrate of Dong’a (192–196 CE)
In 192 CE, after Cao Cao seized control of Yan Province and appointed himself its governor, he named Zao Zhi as Magistrate of Dong’a (东阿令, in modern Shandong). Dong’a was a strategically important city in eastern Yan Province, and Cao Cao entrusted Zao Zhi with its defence and administration.
Zao Zhi proved to be an able administrator. He focused on promoting agriculture, stockpiling grain, and strengthening military preparedness. He organised the training of both soldiers and civilians, and oversaw the strengthening of the city’s fortifications.
In 195 CE, while Cao Cao was campaigning in Xu Province, Lü Bu and Chen Gong launched a surprise attack on Yan Province, seizing most of Cao Cao’s territories. Lü Bu’s forces attacked Dong’a, but Zao Zhi led the city’s defenders in a determined resistance and repelled the assault. Dong’a was one of only a handful of cities in Yan Province that remained loyal to Cao Cao during this crisis, along with Fan County (defended by Cheng Yu) and Juancheng (defended by Xiahou Dun). The survival of these three cities provided Cao Cao with a foothold from which he was able to eventually retake Yan Province.
The tuntian system
Zao Zhi’s greatest contribution to Cao Cao’s cause was his advocacy and organisation of the tuntian (屯田) system — military-agricultural colonies that became the economic backbone of Cao Cao’s regime.
The idea first occurred to Zao Zhi when he observed the practices of the Yellow Turban rebels, who combined farming with military organisation. When Cao Cao defeated the Yellow Turban remnants in Yingchuan and Runan commanderies around 196 CE, he captured large numbers of peasants along with their farming tools and draught animals. Zao Zhi proposed that Cao Cao use these resources to establish agricultural settlements around Xu (modern Xuchang, Henan), the new imperial capital.
Zao Zhi’s plan involved several key elements:
- Land appropriation: Unowned, uncultivated land was brought under state control.
- Organisation of peasants: Displaced refugees and civilians were organised into military-style work units and settled on state land.
- State provision: The government supplied land, seeds, draught animals, and farming tools to the settlers.
- Revenue sharing: Harvests were divided between the state and the peasants according to a fixed ratio, with the state taking a significant share.
- Military organisation: The peasants were organised along military lines, enabling them to defend themselves and, when necessary, be called up for military service.
The first year of the tuntian programme produced over one million hu (斛, a unit of volume) of grain — a remarkable result that demonstrated the system’s effectiveness. Cao Cao was so impressed that he ordered all commanderies to establish tuntian offices and recruit displaced populations for agricultural settlement.
Cao Cao appointed Zao Zhi as Colonel Who Establishes Righteousness (屯田都尉) and gave him full responsibility for managing the tuntian programme. Zao Zhi also later advocated the extension of the system to include military personnel — soldiers who farmed when not engaged in combat. This dual system of civilian and military tuntian became a cornerstone of Cao Wei’s economy and allowed Cao Cao to sustain large armies without overburdening the civilian population.
Later life and death
Zao Zhi died of illness not long after the implementation of the tuntian system, though the exact date of his death is uncertain. Cao Cao was deeply affected by his loss and remained grateful for Zao Zhi’s contributions throughout his life. Years later, Cao Cao posthumously enfeoffed Zao Zhi as a marquis (列侯) and allowed his son to inherit the title. He was also posthumously appointed as Administrator of Chenliu (陈留太守).
Cao Cao never forgot Zao Zhi’s contributions. The Sanguozhi records that Cao Cao issued an order praising Zao Zhi’s foresight and the transformative impact of the tuntian system on the state’s ability to wage war and govern effectively.
Legacy and descendants
The tuntian system that Zao Zhi pioneered became one of the most important institutional innovations of the Cao Wei state. It allowed Cao Cao to maintain large standing armies in a period of chronic food shortage and provided economic stability that attracted settlers to war-ravaged regions. The system continued to be used throughout the Wei period and was adopted by other states as well.
The influence of the tuntian system was so significant that a tributary of the Ying River in Linru County was named the ‘Zao Zhi River’ (枣祗河) in his honour, commemorating his work in organising agricultural settlement and irrigation in the area around Xu.
Zao Zhi’s descendants included:
- Zao Chuzhong (枣处中), his son
- Zao Zhao (枣赵), courtesy name Shuyi (叔祎), who served as Administrator of Julu
- Zao Ju (枣据), Zao Zhao’s son, who became a notable literary figure of the Jin dynasty
Zao Song (枣嵩), courtesy name Taichan (台产), was a descendant who served as Attendant-in-Ordinary (散骑常侍) and was the son-in-law of both Pei Xian (裴宪) and Wang Jun.
Relationship with other Wei officials
Zao Zhi worked closely with several other key figures in Cao Cao’s administration. Han Hao, another officer, also advocated for the expansion of the tuntian system. Xiahou Dun, Cao Cao’s trusted general, supported the agricultural programme as commander of forces in the region. Ren Jun was also involved in the administration of the tuntian system.
The successful defence of Dong’a alongside Cheng Yu and Xiahou Dun during the Lü Bu crisis demonstrated the coordination between civilian administrators and military commanders that characterised Cao Cao’s most effective governance.
Historical evaluation
The Sanguozhi and its annotations record Cao Cao’s own assessment of Zao Zhi’s contributions, which was extraordinarily favourable. Cao Cao explicitly credited Zao Zhi with understanding the fundamental importance of food supply to military success and governance — a lesson that many of his contemporaries failed to grasp.
Modern historians recognise Zao Zhi’s role in developing the tuntian system as one of the most significant institutional innovations of the Three Kingdoms period. The system not only sustained Cao Cao’s military campaigns but also provided a model for state-organised agricultural production that influenced Chinese governance for centuries.
Historical sources
Zao Zhi is primarily documented in the Sanguozhi (Records of the Three Kingdoms), particularly in the context of the biography of Ren Jun (Book 16), where his role in establishing the tuntian system is described. His contributions are also referenced in Cao Cao’s own memorials and orders, which Pei Songzhi cites in his annotations.
Additional details about Zao Zhi’s descendants and the later history of the Zao family appear in the Book of Jin (Jin Shu), particularly in the biographies of literary figures.
See also
External links
References
- Chen Shou. Sanguozhi (三国志). 3rd century.
- Pei Songzhi. Sanguozhi annotations. 5th century.
- Sima Guang. Zizhi Tongjian (资治通鉴). 11th century.
- Book of Jin (晋书). 7th century.
- Dushi Fangyu Jiyao (读史方舆纪要). Qing dynasty.