基于TCMGIS的当归生态适宜性研究

应用《中药材产地适宜性分析地理信息系统》（TCMGIS）对当归Angelica sinensis(Oliv.)Diels在全国的生态适宜区进行分析。以当归药材主产区22个生产点为分析基点，选取1月最低温、7月最高气温及其年降水量、相对湿度、海拔、土壤类型等影响当归生长发育的关键生态因子，通过对主产地野外GPS采点调查确定当归的各生态因子的属性数值范围。研究结果表明：当归适宜产地主要分布于我国的甘肃南部、云南西北部、四川北部及西南部、陕西南部，湖北西部、贵州西北部，河南、宁夏、山西等省市自治区也有少量分布，还在西藏东南部发现有很大的区域为当归种植的适宜区。

TCMGIS Based Evaluation of the Areas Desirable for Growing Angelica sinensis (Oliv.) Diels

We used TCMGIS (Suitability evaluation geographic information system of traditional Chinese medicine producing area) to analyze the areas desirable for growing Angelica sinensis (Oliv.) Diels. 22 of the traditional growing areas were selected as the targets for the study. Six major ecological factors concerning the growth and development of A sinensis (Oliv.) Diels, were chosen from TCMGIS database to determine the optimum producing area (OPA) in the country. These factors are: averaged temperatures from January to July, annual precipitation, relative humidity, altitude, and soil type. Each factor was evaluated based on the data collected from the field surveys. Major factors were compared with the data of 20 selected traditional producing areas as a benchmark. Results show that the areas desirable for growing Angelica were mainly distributed in the south of Gansu Province, the northwest part of Yunnan, the north and the south-west part of Sichuan, the southern part of Shanxi, the west part of Hubei, the northwest part of Guizhou, Henan, Ningxia, Shanxi, with other provinces, municipalities, and autonomous regions having limited areas for growing the herb. Even in the southeast part of Tibet, one has found extensive areas desirable for growing the herb.