| Surabaya basin is located in the huang-huai-hai plain, belongs to the warmtemperate zone semi-humid climate region. During western and eastern Han Dynasties,the climate in Surabaya River basin is warm and moist; the land is fertile; the waterresources are rich, provides good natural conditions for agricultural development.Moreover the people in Sishui area are famous for being good at agriculture, and thenational preferential policy in Han dynasty also promotes the agricultural developmentin terms of social environment in this valley.The basin in the popularity of iron farm tools, application of new technologies,improving crop yields, irrigation and water conservancy development, rich poultrylivestock species, agriculture entered into a booming stage. The archeological materialsunearthed here indicated: large amounts of iron farm tools and farming stone unearthedillustrates the basin developed technology and iron farm implements, oxen-ledtechnology has been widely used; Of agricultural production tools unearthed, illustratesthe basin formed "tillage-harrow-seed-row" the perfect farming system; Unearthed alarge number of wells and well models shows that the basin is the combination of welland canal irrigation farmland irrigation mode; Han dynasty unearthed a large number ofwarehouse model and grain processing tools, enough to prove that the high grain yield;In addition the basin unearthed ceramic circle of livestock and poultry toilet model alsoembodies the prosperous development of poultry livestock breeding industry. All thesereflect the prosperity of the economy in the Han dynasty Surabaya valley agricultural.Compared with the rest of the country, Surabaya valley agricultural development levelis higher than that of Jiangnan, Bashu, etc, earlier than Heluo area of agriculturaldevelopment, slightly better than Guanzhong area. Surabaya basin is in the leadthroughout the country, is one of the most developed advanced agricultural areas. |
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