基于Maxent模型对白花龙在中国未来适生区预测

In this work,the maximum entropy model of Maxent and ArcGIS,knife cutting method,standard deviation ellipse calculation,multiple similarity surface and the most dissimilar variable analysis were applied to predict the adaptable zones at present and in the future(2050)of Styrax faberi in China,based on 235 modern distribution records and multiple environmental variables.The results show that the current high and moderate adaptive areas of the S.faberi are mainly located in most areas of Jiangxi,Guangdong,Guangxi and Fujian in China;In the 2050,the region of the suitable areas under 2 climate scenarios will significantly dwindle,with the reduced areas mainly being the mild adaptive regions,the potential of expansion will decline as well.Over all,there is a trend of migration to the northwest high latitude area.In addition,it is traced that precipitation and temperature restrict the distribution of S.faberi,and the Precipitation of Coldest Quarter(56.6%)is the leading factor affecting its future distribution.The outcomes of this work could provide theoretical guidance for the conservation and rational utilization of the resources of S.faberi.