基于MaxEnt的南丹参在中国的潜在分布区预测及适生性分析

目的]对南丹参在中国的潜在分布区进行预测,并对适生性进行分析。方法]通过收集中草药南丹参的分布信息,利用最大熵模型(MaxEnt)与地理信息系统(ArcGIS),综合相关68项环境因子,分析南丹参在中国的分布信息。结果]全国适合于南丹参分布的地区主要集中在湖南、江西、浙江和福建等地,其高适生区面积依次为湖南省(319.44 km2)、江西省(251.39 km2)、浙江省(122.92 km2)、福建省(62.5 km2);刀切法(Jackknife)分析显示,南丹参分布主要受到降水的影响。结论]该研究结果为南丹参的野生资源利用及其他南丹参相关研究提供了一定技术手段和理论依据。

Prediction of Potential Distribution Areas of Salvia bowleyana Dunn.in China Based on MaxEnt and Suitability Analysis

Objective ] To predict potential distribution area of Salvia bowleyana Dunn. in China and analyze its suitability. Method ] The distribution information of Salvia bowleyana Dunn. and 68 related environmental factors were collected. The potential suitable distribution range of Salvia bowleyana Dunn. in China was analyzed by the software of MaxEnt and ArcGIS. Result] The results showed that Salvia bowleyana Dunn＇ s suitable distribution areas are mainly concentrated in Hunan, Jiangxi, Zhejiang, Fujian. The high suitable area of province above are as follows ： Hunan Province（319.44 km2 ）, Jiangxi Province （251.39 km2 ）, Zhejiang Province （ 122.92 km2 ） , Fujian Province （62.5 km2 ）. Jackknife analysis showed that precipitation has obvious influence on Salvia bowleyana Dunn＇ s distributions. Conclusion ] The results can provide reference for Salvia bowleyana Dunn＇ s wild resource utilization and study.