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对云南省4个县选择20个布朗族聚居村的622户布朗族农户,采用参与式问卷调查和实地考察相结合的方法,调查其种植的地方稻种,分析村级和户级水平的地方稻种分布特点。共调查收集到地方稻种资源53个,其中有色稻种和糯稻种各14个(各占26.4%)。318户种植地方稻种,占被调查农户总数的51.1%;种植地方稻种的面积占总稻作面积的30.0%;种植地方稻种的村级丰富度平均为5.64,最高达9;而户级丰富度平均为1.29,最高达4。种植地方稻种的村级均匀度平均为0.548,户级均匀度平均为0.172。地方稻种数量在调查县间差异显著,西双版纳州勐海县27个(50.9%)>临沧市双江县17个(32.1%)>普洱市墨江县9个(17.0%)>保山市施甸县0个。在乡镇级水平上,拥有地方稻种资源最丰富的是西双版纳州勐海县西定乡22个,然后依次为临沧市双江县邦丙乡9个、临沧市双江县大文乡和普洱市墨江县景星乡均为8个、勐海县布朗山乡5个、墨江县新抚乡1个。各地区种植地方稻种数量存在较大差异的主要因素是复杂的农业生态环境、丰富的民族文化习俗和多样的饮食习惯。
A total of 622 ethnic Bengal households selected from 20 Brown Villages in 4 counties of Yunnan Province were surveyed by means of a participatory questionnaire survey and field investigation to investigate the local rice varieties planted at the village level and household level Rice species distribution characteristics. A total of 53 local rice germplasm resources were collected, of which 14 were non-ferrous rice varieties and glutinous rice varieties (26.4% each). 318 households planted local rice varieties, accounting for 51.1% of the total number of surveyed households; the planting area of rice varieties accounted for 30.0% of the total rice area; the average planting density of planting local rice varieties was 5.64, up to 9; The average level of richness is 1.29, up to 4. The average of village-level uniformity of planting local rice varieties is 0.548, and the average household level evenness is 0.172. There was a significant difference in the number of rice species in the survey counties, with 27 (50.9%) in Menghai County, Xishuangbanna, 17 (32.1%) in Shuangjiang County, Lincang County, 9 (17.0%) in Mojiang County, Pu’er City 0 County. At the township level, with the most abundant rice resources in the region, Xishuangbanna Prefecture Menghai Xiding Township, 22, followed by Lincang Shuangjiang County Bangcrop 9, Shuangjiang County, Lincang Dapin Township And Pu’er Meijiang County Star Township are 8, Menghai Brown Hill Township 5, the new rural Meixiang 1. The main factors that have a big difference in the number of local rice varieties planted in various regions are the complicated agro-ecological environment, rich ethnic customs and diverse eating habits.