Keeping the 'blood of Turpan' circulating

Despite being more than 2,000 years old, the ancient karez irrigation system used in the areas around the ancient Silk Road city is still in use. Now, new developments are likely to reinforce the canal's importance, as Cui Jia reports.

Ablimit Yagup watched carefully as his son Ablikim was lowered into a narrow opening in the Gobi Desert near Turpan city in the Xinjiang Uygur autonomous region. The 53-year-old then tied the steel wire around his own waist so he could descend to the bottom of the 30-meter-deep shaft and join Ablikim. From the base of the shaft, the two men entered a muddy subterranean canal filled with slow-running water.

The locals say that what runs in the canal, or karez, which means "well" in the Uygur language, is not water, but the very blood of Turpan itself. People have lived around the oasis settlement for millennia, and merchants, monks and preachers traversing the ancient Silk Road trade route knew the area as an important strategic point for refreshment and replenishment of supplies.