Complex sentence: After this reform, salt provided more than half of the dynasty's annual revenue and probably delayed its fall, for then and in years after, a government which controlled the salt production areas, the canal, and the capital would be hard to dislodge.
Split into simpler sentences: After this reform, salt provided more than half of the government's annual revenue and probably delayed its fall. A government which controlled the salt production areas, the canal, and the capital would be hard to dislodge.