Why is rice the leading crop in the Yangtze River basin of southern Anhui?

Rice is the leading crop in the Yangtze River basin of southern Anhui primarily due to the region's favorable natural conditions, which are significantly wetter than those found in the northern Huai basin.1

The Yangtze valley experiences a climate characterized by hot, wet summers and a relatively long growing season, which provides the essential moisture and warmth required for rice cultivation. While the northern parts of Anhui are better suited for crops like wheat, the southern Yangtze region receives higher annual precipitation—ranging between 47 and 71 inches—which is relatively evenly distributed compared to the north.21

Furthermore, agricultural productivity in this area has been bolstered by significant investments in water management. Since the 1950s, the development of extensive irrigation facilities and water conservancy projects has allowed for more efficient use of water resources, enabling farmers to practice double-cropping of rice. These improvements have transformed the region, allowing it to maximize its agricultural potential and maintain its status as a primary rice-producing area.341