PRELIMINARY STUDY ON THE PALAEOENVIRONMET IN THE AREA OF TROITSKY BURIAL GROUND OF IVANOVKA DISTRICT IN AMURSKAYA,RUSSIA
俄罗斯阿穆尔州伊万诺夫卡区特罗伊茨基墓地古环境初探

In order to have a better understanding about the environmental background of economic style and living pattern of an ancient ethnic group of Mohe,based on the firsthand spore-pollen materials collected from the strata(layer 2 and layer 3 in 10 th excavating square)in the area of Troitsky Burial Ground of Ivanovka District in Amurskaya of the Far East of Russia,the authors carried out the research on the ancient vegetation and climatic environment with the detailed results of spore-pollen analysis and archaeological relics.The results of the spore-pollen analysis are as follows: Palynologically both samples are high in quantity but low in diversity.31 genera in 23 families are identified,which include pollen of arbores,bushes,and herbs such as Pinaceae,Amaranthaceae,Araceae,Betulaceae,Boraginaceae,Campanulaceae,Chenopodiaceae,Compositae,Cyperaceae,Fagaceae,Gentianaceae,Gramineae,Ranunculaceae,Rosaceae,Salicaceae,Solanaceae,Thymelaeaceae,Ulmaceae,Urticaceae,Saxifragaceae,Lemnaceae and spores of pteridophytes such as Lycopodiaceae and Polypodiaceae.The result shows that in the middle of Tang Dynasty(1220± 50aB.P./1560± 75aB.P.)the climate in that area became cool and dry with steppe developed and even colder and drier in the early Liao Dynasty,although the background climate is the so called warm period in Sui &; Tang Dynasties.This might be explained as the regional climatic response to the trend of global changes during the Late Holocene,firstly shown in ligh latidudes.Under such a climate a fishing,hunting,and gathering economy is more reasonable than a farming one although the latter is common in the center area of the Mohe Culture.This study not only improves the precision of small scaled environmental researches of the region in the Late Holocene but also sets up an environmental background for a better understanding of the relationship between economic pattern and living style of Mohe man.