厚朴与凹叶厚朴在湖北地区的生态适宜性研究＊

通过实地调查和文献研究,了解厚朴与凹叶厚朴在湖北地区的种植状况;采集45个野生分布点的海拔、经纬度数据,应用地理信息系统（GIS）提取各样点生境适宜度值,分析厚朴与凹叶厚朴在湖北地区的生长适宜性,为确定湖北区域内厚朴的适宜种植地提供科学依据。本研究结果表明,湖北西南部位于武陵山区的恩施地区及其周边适宜厚朴生长,适宜度值0.4~0.9;湖北东部位于大别山区的黄冈地区适宜凹叶厚朴生长,适宜度值0.8以上;湖北西北部位于武当山区的十堰地区,厚朴与凹叶厚朴均不适宜生长。

Growth Suitability of Magnolia Officinalis and Magnolia Officinalis var. Biloba in Hubei Province

Through on-the-spot investigation and literature research, the planting status of Magnolia officinalis and Magnolia officinalis var. biloba in Hubei was investigated; the altitude, longitude and latitude data of 45 planting sites were collected, and the habitat suitability values of each planting site were extracted by Geographic Information System (GIS), and the growth suitability of Magnolia officinalis and Magnolia officinalis var. biloba in Hubei was analyzed. The results showed that the growth of Magnolia officinalis was suitable in Enshi area of Wuling Mountains in southwestern Hubei and its surrounding areas, with the suitable value of 0.4-0.9; the growth of Magnolia officinalis var. biloba was suitable in Huanggang area of Dabie Mountains in eastern Hubei, with the suitable value of more than 0.8. Magnolia officinalis and Magnolia officinalis var. biloba are not suitable for growth in Shiyan area of Wudang Mountains in northwestern Hubei.