Shangyu people like to keep in good health. In the Yunan Mountain area at the junction of Shangyu, Yuyao and Shengzhou, a village with a white wall looming halfway up the mountain is Dongcheng Village. Since winter, more than a dozen old farmers have sown rape seeds on thousands of acres of terraces on the northern slope of Gaishan Mountain. After their careful care, more than 23,000 fields, large and small, are expected to become a golden scene in the mountains and plains next spring.