A man walks through one of the drainage channels that make up the Dujiangyan Irrigation System.
SEAN GALLAGHER, FOR THE PULITZER CENTER, SICHUAN PROVINCE, CHINA
Water did not seem in short supply as I arrived in China’s southwest province of Sichuan. Rain was pounding on the windshield of my taxi and pools of water were starting to flow down the streets of the province’s capital, Chengdu. People scurried around the streets, desperate to get out of the storm that had quickly descended on the city.
This unsavory welcome was compounded by the delivery of bad news from my assistant upon my arrival at my hotel. Our primary location for the week, the largest highland marsh and peat lands in Asia, Ruoer’gai in the north of Sichuan, had just been sealed off from the outside world. The heavy rains had caused landslides which had wiped out all roads leading to the 3500 meter plateau which it sat upon. These marshes comprise half a million hectares and have been dubbed the ‘kidneys’ of the Qinghai-Tibetan plateau. Made up of 90 percent water, they act like a sponge sequestering carbon and providing a home for a vast range of highland species. A vital ecosystem and source of water, they are the origin of the Yellow River, one of China’s mightiest waterways.
