Analysis of Suitable Distribution Areas and Dominant Environmental Factors of Ceiba speciosa Based on MaxEnt Model and ArcGIS
Ceiba speciosa is a garden ornamental plant with important aesthetic value.By exploring its dis-tribution of suitable habitats,we hope to provide a basis for scientific introduction and cultivation and effective use of resources.Therefore,this study is based on 854 natural distribution locations of C.speciosa and 26 envi-ronmental factors,we performed analysis by MaxEnt model and ArcGIS software to speculate the suitable area of C.speciosa in China and investigated the dominant environmental factors affecting the natural distribution.The results indicated that based on the MaxEnt model the average AUC values of the training and test set are both greater than 0.9,which indicates that the simulation results were accurate and the model was reliable.The range of suitable areas is mainly concentrated in Guangdong Province,Guangxi Zhuang Autonomous Region,Hainan Province,southern Fujian Province and southern Yunnan Province,southern Sichuan Basin,and coastal areas of Taiwan,with a total area of over 60.2 km2.The dominant environmental factors affecting the natural distri-bution are the minimum temperature of the coldest month and the average annual precipitation.The coldest month's average temperature above 5℃and the annual average areas with a rainfall of 1 500-2 500 mm are most suitable for the growth of C.speciosa.The study could provide a reference for the conservation,utilization,in-troduction,and artificial cultivation of C.speciosa.
Ceiba speciosasuitable distribution areasenvironment variableMaxEnt model
万方数据
维普
