The temporal and spatial distribution of ancient rice in China and its implications

查看全文 作　　者：GONG ZiTong CHEN HongZhao YUAN DaGang ZHAO YuGuo WU YunJin ZHANG [1]GanLin

机构地区：[1]State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008,China

出　　处：《Chinese Science Bulletin》索引2007年第52卷第8期,共9页

基　　金：Supported by the National Natural Science Foundation of China(Grant Nos.40625001 and 40235054) 摘　　要：The relics of ancient rice have been regarded as the most important objective evidence of the origina- tion and spread of rice cultivation.Based on the records of 280 rice relics sites and the rice cropping regionalization as well as the distribution map of paddy soils,the current study compiled the temporal and spatial distribution map of ancient rice distribution in China.The map shows that the distribution of ancient rice is spatially extensive and meantime comparatively concentrated,temporarily covering a long and relatively continuous time-span.The rice relics in the Central China double and single rice cropping regions are among the earliest and the most abundant ones,possessing continuity in time sequence.Combined with the discovery of ancient rice and paddy filed relics,soil micromorphology, pollen combination and element geochemistry,it is suggested that Central China was the origin center of rice cultivation in China.Rice had been spread to the rest part of China in three major waves,also to the East Asian part like Korea and Japan.The temporal and spatial distribution of ancient rice reflects the past environmental change,which is also meaningful to the current rice regionalization and plan- ning as well as food security in China. 关键词：古代水稻起源时空分布中国

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The temporal and spatial distribution of ancient rice in China and its implications

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