内蒙古地区道地药材蒙古黄芪资源调查及产地适宜性

在文献检索的基础上,运用样地调查法和踏查法调查野生、人工种植蒙古黄芪的资源分布、生境特点、生长状况,探寻影响蒙古黄芪生长的生态因子,结合中药材产地适宜性分析地理信息系统,区划蒙古黄芪在内蒙古地区的适宜产地.结果表明: 栽培蒙古黄芪生产区域主要分布在武川县、固阳县等15个旗县,其生态特征为海拔高于1000 m,土壤类型为沙土、砂砾土和钙土.野生蒙古黄芪覆盖内蒙古中东部地区,生于向阳处,喜冷凉干燥气候,适宜沙壤土或砂砾土,忌阴湿黏重土壤.应用TCMGIS-Ⅱ分析得到内蒙古境内野生蒙古黄芪生态因子相似系数>95%的生态适宜区为43个县区,面积为94460.30 km²;栽培蒙古黄芪生态适宜区为32个县区,面积为76013.93 km².

Resource surveys and suitability of origin for genuine medicinal materials, Astragalus membranaceus var mongholicus in Inner Mongolia,China

In order to explore the ecological factors affecting the growth of Astragalu smembranaceus var. mongholicus, we investigated the resource distribution, habitat characteristics and growth conditions of wild and cultivated A. membranaceus var. mongholicus by fixed-plot observation, survey method, and literature. These data were analyzed by traditional Chinese medicine GIS-Ⅱ (TCMGS-Ⅱ) to obtain the most suitable areas of A. membranaceus var. mongholicus within Inner Mongolia. The results showed that the production areas of cultivated A. membranaceus var. mongholicus were mainly located in Wuchuan County, Guyang County and other 15 counties, which were cha-racterized by the altitude higher than 1000 m, with soil type of sand, gravel and calcareous clay. The wild A. membranaceus var. mongholicus was distributed mainly in the eastern Inner Mongolia and germinated in sunny place, which preferred to the cold dry climate and sandy loam soil or gra-vel but avoided damp heavy clay soils. There are 43 counties of 94460.30 km² for wild A. membranaceus var. mongholicus, and 32 counties of 76013.93 km² for cultivated one within Inner Mongolia, with a similarity coefficient of ecological factors greater than 95%.