云南地区稻作品种多样性的地理分布格局与不同民族人口分布之间的关系

Relationship between Geographical Distribution Structure of Diversity of Rice Varieties and Population Distribution of Different Nationalities in Yunnan Area

利用云南地区5285份稻种资源信息和人口普查数据,分析了该地区稻作品种多样性的地理分布格局及其与不同民族人口分布之间的关系。结果表明,云南地区稻作品种的多样性从南到北总体上呈递减趋势;傣族、哈尼族、拉祜族和布朗族人口比重与稻作品种的丰富度密切相关;不同民族文化和稻作文化背景下的人口对传统稻作品种的留存和栽培可能具有不同的影响。

By utilizing 5 285 shares of information about rice variety resources and data about population census of Yunnan area,the geographical distribution structure of diversity of rice varieties and its relationship with population distribution of different nationalities in this area were analyzed.The results indicated that in Yunnan area,the diversity of rice varieties showed progressively decreasing trend from south to north totally;the population proportions of Dai,Hani,Lahu and Bulang nationalities were closely related to richness of rice varieties;the population might have different influences on the retaining and cultivation of traditional rice varieties under different national culture and rice-cultivation culture backgrounds.