基于生境适宜度的厚朴生长适宜性研究

摘要

ABSTRACTOBJECTIVE To study the growth suitability of Magnolia officinalis on the basis of investigation on the correla-tion between its growth and ecological factorsand to provide scientific basis for determining the suitable planting region of Magnolia officinalis in China.METHODS Based on the investigation of 43 sampling points of Magnolia officinalis the eco-logical factors affecting its growth was calculated by Maxent.The geographic information systemGIS was applied to assess the growth suitability rank dividing of Magnolia officinalis in China.RESULTS Precipitation of OctoberaltitudeSeptember precipitationprecipitation in July is the main ecological factors that influencing the growth of Magnolia officinalis .The habi-tat suitability values of Magnolia officinalis in Southwest of Hubei province and Eastern Chongqing is highest.CONCLUSION Hubei and Chongqing are the suitable planting areas of Magnoliae officinalis .%目的：通过对厚朴生长与其环境生态因子之间的相关性考察，研究厚朴的生长适宜性，为确定厚朴的适宜种植区域提供科学依据。方法对43个样点的厚朴资源进行调查，利用最大信息熵模型计算影响厚朴生长的各种生态因子；应用地理信息系统（GIS）提取各样点的生境适宜度值，并进行厚朴生长适宜性等级划分。结果10月降水量、海拔、9月降水量、7月降水量等4个生态因子是影响厚朴生长的主要生态因子；湖北西南部及重庆东部等地区厚朴的生长适宜性等级最高。结论湖北和重庆是厚朴的适宜种植区。