Extension of agricultural areas in northeast China during the middle Neolithic

In the Middle Neolithic (5-4 thousand BC) in the northeastern China farming centers were developed in southern regions under the influence of the migrants from the middle Huanghe, while in the north the appropriating forms of economy were still dominating. Comparative analysis of five cultures from different geographic zones - the Liaodong Peninsula, the Liaohe Plain, the Liaoxi uplands, the Songnen Plain, the Sanjiang Plain has been carried out. Settlement complexes were analyzed by the quantitative indices of stone tools, their functional diversity, concentration of dwellings in one settlement, their purpose and duration of residence. The purpose of this study is to analyze the correlation of the agriculture dispersal in a particular geographic area with the natural conditions and coexistence of several stages of agriculture development in one region.