Northern Song Dynasty Northern Silt Tian A Number Of Issues A Preliminary Study

Many rivers in North China contain a high percentage of sand, which brings certain trouble to river regulation and water diversion irrigation. However, utilization of the sediment water (abundant in organic matter) as an alternative to proceed the irrigation, which was once called as "colmatage" in history, turns out to be an effective way to improve the harsh conditions. This kind of age-old method originated from the early year of Warring States period, and got some advancement during the Qin and Han Dynasties. In succession to the Han Dynasty, the Tang Dynasty had relatively fewer colmatage, which was confined to just some areas. As of Song Dynasty, most rivers in North China were sedimental in nature. The sediment water resources, especially those in the middle and lower Yellow River, and along the banks of Bian River, Fen River, Hutuo River, Zhang River, were made full use to the irrigational purpose. Such a phenomenon amounted to a climax of irrigation with sediment water, which was unprecedented throughout our history. Despite of several setbacks attributed to lack of experience during the implementation, the advantage brought by such kind of fields was fairly significant. The application of this agricultural technique not only increased the acreage of land, improved the saline-alkaline land, but also remarkably enhanced the food production, and mitigated the pressure of food supply of the North Song Dynasty at war therein.Full text is divided into five chapters content:The first chapter basically introduces the treaty of interested in farmland, and some concrete measures how sedimentation in the colmatage of the rise of northern region.The second chapter in the northern song dynasty, mainly probes into the colmatage of henan region sedimentation, henan in the lower Yellow River, this period with frequent HuangHeHe, leaving the song dynasty, the government had to spare a lot of manpower and material resources to cope with the growing serious river with and alkali and waterlogging disasters, in this case in city KaiFengFu mass warping the rise around Taiwan near the river. Henan in the colmatage activities benefiting at most sedimentation, mainly on the Yellow River, near the river coast warping. So this chapter will mainly discuss the silting colmatage activities and henan benefits brought by sedimentation colmatage, but also the measures of silt colmatage a elaboration.The third chapter discusses mainly the silting in the northern song dynasty, hebei area colmatage activities. In the northern song dynasty, hebei with military status, liao border is particularly important, so then formed "border type agriculture", although plain area is larger, but agriculture accounts for only a small part of this land. Because ZhangHe dipping, hebei province, HuTuoHe bermudagrass, so they have such waters to execute silting colmatage conditions.The fourth chapter basically introduces silting tian brings the economic benefits and practical experience. The development of sedimentation, expand the colmatage in the northern song dynasty, the northern regions in China, rice planting area increased food production, and effective improved after the saline-alkali land, after warping for beauty field party. Of course in warping process the ancients also summarizes the rich practical experience, warping of time, drainage, flood control and overall planning is very important, not despise.Conclusion in the northern song dynasty part summarizes the basic situation of sedimentation colmatage in the process, although some problems occurred, but after all outweigh the costs, in ancient China played a big role. In the current society, just under the guidance of the scientific, using YinHong irrigation can not only effective utilization of water resources and the utilization of organic fertilizer and governance sediment has economic benefits, alkali is worth our using for reference.This paper is to belong to historical geography research category, the study circles on silt colmatage, but as though there are also a kind of water conservancy field in Chinese history, it plays its unique light, so the study of the Angle also, research achievement of natural endless. The innovation of this paper lies in the south song dynasty:the system with the silting colmatage, the typical regional henan and hebei as cases, trying to restore the social context people at production activities, as well as people the ability to transform nature.