The earliest archaeobiological evidence of the broad-ening agriculture in China recorded at Xishanping site in Gansu Province  

作　　者：J. DODSON 

机构地区：[1]Institute of Environmental Research, Australian Nuclear Science and Technology Organisation, Sydney NSW 2234, Australia

出　　处：《Science China Earth Sciences》2007年第11期1707-1714,共8页中国科学（地球科学英文版）

基　　金：Supported by the Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX3-SW-146);the National Natural Science Foundation of China (Grant Nos. 40572108, 40599423 and 40372077);the West Light Foundation of the Chinese Academy of Sciences

摘　　要：The crop types and agricultural characteristic are reconstructed using the archaeobiological proxies of pollen, seed and phytolith at Xishanping site in Gansu Province between 5250 and 4300 cal a BP. The agricultural activity strengthened in Xishanping from 5100 cal a BP. It appeared the earliest cultivation of prehistoric rice in the most northwest China at 5070 cal a BP. The sudden disappearance of conifers and expansion of chestnut trees is likely to be the result of selective hewing of conifers and cultivation of chestnuts at about 4600 cal a BP. There existed 8 crop types of foxtail millet, broomcorn millet, rice, wheat, barley, oats, soybean and buckwheat at Xishanping between 4650 and 4300 cal a BP, which cover the main crop types of the two origin centers of East and West Asia. Not only has the wheat and barley been approved to spread to northwestern China, but the earliest complexity agriculture in Neo-lithic China appeared in Tianshui, Gansu Province.The crop types and agricultural characteristic are reconstructed using the archaeobiological proxies of pollen, seed and phytolith at Xishanping site in Gansu Province between 5250 and 4300 cal a BP. The agricultural activity strengthened in Xishanping from 5100 cal a BP. It appeared the earliest cultivation of prehistoric rice in the most northwest China at 5070 cal a BP. The sudden disappearance of conifers and expansion of chestnut trees is likely to be the result of selective hewing of conifers and cultivation of chestnuts at about 4600 cal a BP. There existed 8 crop types of foxtail millet, broomcorn millet, rice, wheat, barley, oats, soybean and buckwheat at Xishanping between 4650 and 4300 cal a BP, which cover the main crop types of the two origin centers of East and West Asia. Not only has the wheat and barley been approved to spread to northwestern China, but the earliest complexity agriculture in Neolithic China appeared in Tianshui, Gansu Province.

关 键 词：archaeobiological proxy broadening agriculture Xishanping site Gansu Province 4650 cal a BP 

分 类 号：P535[天文地球—古生物学与地层学]