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The Sichuan Regional Military Commission (Dusi) and its Branch (Xing Dusi) were responsible for the defense of the western frontier. The "Branch" commission specifically managed the mountainous Jianchang region. The massive discrepancy between the "original" and "current" quotas in this entry—where the original figure is exceptionally high—often reflects administrative reorganizations or the transfer of military land to civilian jurisdiction over the course of the dynasty.
The original quota for military-agricultural landTuntian: state-owned land cultivated by soldiers to provide for their own rations, reducing the need for the central government to transport supplies over long distances. was 659,545 qingOne qing is approximately 15 acres., 26 muOne mu is approximately 1/6th of an acre., 7 fenOne fen is 1/10th of a mu, roughly 700 square feet., 3 liOne li is 1/100th of a mu., and a fraction.
The current quota for military-agricultural land is 48,804 qing, 10 mu, 3 fen, 5 li, and a fraction. There are 1,938 sites categorized as garden and granary foundationsHuayuan cangji: land used for supplemental food production or the physical sites of storage buildings, which were taxed differently than standard fields.. The grain tax is 294,339 shiA shi is a unit of dry volume used for grain, roughly 100 liters., 4 dou1/10th of a shi., 9 sheng1/100th of a shi., 5 ge1/1,000th of a shi., 7 shao1/10,000th of a shi., and a fraction.
The original quota for military-agricultural land was 12,963 qing, 8 mu, and 5 fen? The unit is cut off in the original text but follows the standard decreasing sequence of area measurements.