凉山地区野生荞麦资源的特征特性与地理分布研究

通过对四川凉山地区17个县市520个乡镇1 560个不同生态点野生荞麦资源的系统考察和整理,搜集到分布于该地区不同生态点野生荞麦资源的7个种和2个变种种子205份,植株标本96份,明确了该地区野生荞麦资源种的数量、特征,以及不同种野生荞麦资源具有比较明显区域性的3个主要分布中心,即海拔高度在1 000 m左右温度较高的东部和南部金沙江沿岸分布中心,海拔高度在2 000 m左右温度较低的中部分布中心和海拔高度在2 500 m左右温度较低的西部分布中心.

Study of the Characteristics and Geographical Distribution of Wild Buckwheat Resources in Liangshan Area of Sichuan

After systematicly investigating the wild buckwheat resources of the 1 560 different ecological areas in the 520 villages and towns of 17counties in Liangshan of Sichuan,the author collects 205 seeds of seven species and two varieties,96 plants specimens.The author get to know the quantity and characteristics of wild buckwheat resources of this area,and also know that different wild buckwheat resources have three clear and regional distribution centers,that is,the higer temperature east of an altitude of about 1 000 m and the south of the Jinsha River,the lower temperature central distribution center of an altitude of about 2 000 m,the lower temperature west of an altitude of about 2 500 m.