New York Times: Water once ruled this teeming urban center, back when its most famous commodity was vegetables, when the farms outnumbered the apartments, and before the town’s landmark 11-story building was surpassed by hundreds twice that size. Equipment manufacturing was a major part of the economy in this one-time agricultural center about 85 miles southwest of Beijing, but the region’s water quality also made film production one of the city’s top industries. Digital cameras put a swift end to …