唐以前江南农业相对落后原因试析中国农业博物馆徐旺生在中国历史上，唐代以前，经济政治的重心位于黄河流域，影响后世的典章制度、社会伦理心态，都是形成于这一地区。虽然近来学术界给长江流域的古代文明以足够的关注，从多个角度来论证长江流域在古代也是中华文化的发... Before the Tang Dynasty, the Causes of the Relative Backwardness of Jiangnan Agriculture An Analysis of the Causes of Relative Backwardness of Jiangnan Agriculture in China In the history of China, before the Tang Dynasty, the center of economic and political politics was located in the Yellow River basin. The rules and regulations affecting the later generations and the social ethics and mentality were all formed in this area. Although recent academic circles have given enough attention to the ancient civilizations in the Yangtze River Valley, they have argued from several angles that the Yangtze River Valley is also an ancient Chinese culture ...