The upper reaches bet365 new user promo Xiliao River are located in the southwest of Northeast my country、Eastern Inner Mongolia Autonomous Region，Belongs to the transition zone between the Eurasian steppe area and the northeastern broad-leaved forest area，With North China、Northeast、The Daxinganling and Mongolian flora are staggeredly distributed。Because this area is located on the edge bet365 new user promo monsoon、The transition zone between arid and semi-arid and semi-humid areas、Edge of Horqin Sandy Land，Sensitive to environmental evolution and human activities，Climate change can easily affect human activities。

In order to understand the business structure and production conditions during the Hongshan Culture bet365 new user promo，Discuss the relationship between man and land at that time，We are at the Weijiawopu site, a typical site of the Hongshan Culture bet365 new user promo、The second location of Xinglonggou，Using flotation method to obtain millet including crops、Charcoalized plant seeds of millet and other weeds (Poaceae、Chenopodiaceae、Fabaceae、Lamiaceae、Solanaceae, etc.)，But the absolute number of crops unearthed is very low，Both millet and millet are only 7%。Flotation result display，The ancestors of the Hongshan Culture bet365 new user promo in the upper reaches of the Western Liao River had begun to engage in agricultural production activities，With millet、Mainly millet。

After the "8200-year climate change event"，The Holocene climate enters the Great Warm bet365 new user promo，7500-6000 years ago was the optimal climate bet365 new user promo，There were climate fluctuations 6000-5000 years ago。There is a good correspondence between stalagmite δ18O records and solar radiation in Nuanhe Cave, Huanren County, Liaoning Province，Shows that this area was in the Holocene Warm bet365 new user promo during the Hongshan Culture bet365 new user promo，Higher temperature，But it dropped to a low value around 6400 years ago。The precipitation fluctuated during the Hongshan Culture bet365 new user promo，But overall it is weaker than the early bet365 new user promo (8000-7000 years ago) and the later bet365 new user promo (3700-3200 years ago)。Compared to the Xinglongwa-Zhaobaogou bet365 new user promo of the early Neolithic Age and the lower Xiajiadian cultural bet365 new user promo of the Bronze Age，The summer monsoon during the Hongshan Culture bet365 new user promo was weak，Low precipitation。Warmth、Arid but relatively stable climate conditions may have ensured the continued development of Hongshan Culture。

Analysis based on flotation results，The early economic form of the Hongshan Culture at the Weijiawopu site included agricultural production components，And plant drought-tolerant crops like millet、Mainly millet。Millet、Millet is an important crop type in dry farming in northern China，The original dry farming agriculture with millet as the main crop in the Xiliao River Basin began during the Xinglongwa Culture bet365 new user promo。More than 10,000 seeds of various plants were unearthed from the first location of the Xinglonggou site，Including millet、Two cultivated grains of millet，The carbonized millet grains unearthed here still retain strong characteristics of their wild ancestors，If the grain shape is longer，Small size，Should be an early species in the evolution of cultivated crops。

Weijiawopu Ruins、The Hongshan Culture bet365 new user promo represented by the second site of Xinglonggou，With millet、The dry farming system represented by millet should inherit the dry farming tradition of the Xinglongwa Culture bet365 new user promo in the upper reaches of the Liao River in the West，But millet in this bet365 new user promo、The absolute quantity and probability of unearthed millet，Far lower than the Central Plains Cultural District in the same bet365 new user promo，At the same time, it is also far lower than the lower Xiajiadian cultural bet365 new user promo of the Bronze Age。Identification display of the Weijiawopu site and the second location of Xinglonggou，Millet、The absolute number of millet is much lower than that of the third site of Xinglonggou and the Sanzuodian site of Songshan District during the lower Xiajiadian culture bet365 new user promo (9665 millet grains、99348 grains of millet)，Millet、The probability of unearthed millet is also much lower than the latter。This explains，Taking the Weijiawopu site、The agricultural system during the Hongshan Culture bet365 new user promo represented by the second site of Xinglonggou does not account for a high proportion in the livelihood model。

This difference may be caused by the diversification of business models during the Hongshan Culture bet365 new user promo。The characteristics of the stone tools unearthed from the Hongshan Culture show that the stone tools related to agriculture are mainly large fellers and stone shovels and other earth-moving tools，Lack of shovel tools for fine farming，May reflect the production conditions of large-scale reclamation and extensive farming at that time；Thin-edged and sharp stone tools, fine stone tools with a high probability of being unearthed, and bone-stemmed stone-edged tools that are not seen in other agricultural areas，It is mostly related to cutting skin and flesh，Reflects the hunting industry、The existence of breeding industry；Stone arrowheads found in many ruins，Also reflects the economic form of hunting。

The animal bones unearthed from the Hongshan Cultural Site in Niuheliang include domestic animals and sika deer、Roe deer、Deer、dog、Black Bear、Hare、Badger、Northeastern zokors and other wild animals。The Hongshanqian site and the Hongshan bet365 new user promo strata of Baiyin Changhan have been identified as containing deer bones，Show hunting、Livestock raising accounts for a large proportion in economic life。

During the flotation process of the Weijiawopu site，A large number of fish bones, mollusk shells and some animal bones were also discovered，Shows that the fishery economy occupies a large proportion in the economic life of the ancestors of the Weijiawopu site。Pick oak、Wild fruits such as Catalpa japonica and Cortex japonica，As a food source for the ancient ancestors of the early Neolithic bet365 new user promo in the western Liaohe area。Tools such as stone millstones and grinding rods found at Weijiawopu and other sites should also be collected、Processing is related。

Visible，Hunting、Livestock breeding、Fisheries、Collecting also played an important role in the way of livelihood during the Hongshan Culture bet365 new user promo，With millet、The level of dry farming in northern China, represented by millet crops, is not high。Due to the rich variety of landforms in the upper reaches of the Xiliao River，Significant altitude difference (120-2100 meters)，Different landform units provide environmental conditions for the diversification of human production methods in the region，Promotes the diversification of business models in the region。

Hongshan culture lasted longer，Overall，Whether it is an unearthed relic，The scale of settlements is still higher than in other periods，This may be a product of the "agglomeration effect" on the time scale。However, the number of sites and the total area of ​​sites in the Chifeng area during the Hongshan Culture bet365 new user promo are still lower than those in the later Xiajiadian Lower Culture bet365 new user promo and Xiajiadian Upper Culture bet365 new user promo。At the same time，Humans tended to live in valleys during this bet365 new user promo、Low elevation areas such as alluvial plains and floodplains，And higher altitude areas such as hills and low mountains，The former may be affected by fishery economy，The latter may be related to the hunting and gathering economy。

The ancestors of the Hongshan Culture bet365 new user promo in the upper reaches of the Western Liao River were engaged in agricultural production activities，With millet、Mainly millet，Hunting simultaneously、Livestock breeding、Fisheries、Collection also plays an important role。Find out the reason，The relatively dry climate conditions during the Hongshan Culture bet365 new user promo in the upper reaches of the Western Liaohe River may have limited the development of the agricultural economy in the area，Ancestors had to engage in hunting、Livestock breeding、Fisheries、Collect etc. to replenish food resources。Different landform and environmental characteristics may also promote the diversification of business models。

(Author’s unit: School of History and bet365 new user promo, Chifeng University)