草地学报 ›› 2024, Vol. 32 ›› Issue (12): 3905-3914.DOI: 10.11733/j.issn.1007-0435.2024.12.026

• 研究论文 • 上一篇    

基于MaxEnt模型的黄花刺茄在北方农牧交错带潜在适生区分析

郑梦月1, 宋彦涛1, 李彩琳1, 那木汗1, 乌云娜1, 马晶2, 于跃2   

  1. 1. 大连民族大学环境与资源学院, 辽宁 大连 116000;
    2. 巴林右旗林业和草原局, 内蒙古 巴林右旗 025150
  • 收稿日期:2024-04-19 修回日期:2024-05-31 发布日期:2024-12-14
  • 通讯作者: 宋彦涛,E-mail:yantaosong@dlnu.edu.cn
  • 作者简介:郑梦月(2000-),女,汉族,河北唐山人,硕士研究生,主要从事草地植物群落结构与功能研究,E-mail:1578417901@qq.com;
  • 基金资助:
    国家民委中青年英才培养计划项目(2022);辽宁省科技计划联合计划应用基础研究项目(2023 JH2/101700027);中央高校基本科研业务费(04442024091)资助

Analysis of Potential Geographic Distribution of Solanum rostratum Based on Optimized MaxEnt Model in Agro-pastoral Ecotone of Northern China

ZHENG Meng-yue1, SONG Yan-tao1, LI Cai-lin1, NA Mu-han1, WU Yun-na1, MA Jing2, YU Yue2   

  1. 1. College of Environmental and Resources, Dalian Minzu University, Dalian, Liaoning Province 116000, China;
    2. Bairin Right Banner Forestry and Grassland Bureau, Bairin Right Banner, Inner Mongolia 025150, China
  • Received:2024-04-19 Revised:2024-05-31 Published:2024-12-14

摘要: 黄花刺茄(Solanum rostratum)作为危害性极强的外来入侵物种,明确影响其在中国北方农牧交错带分布的主要环境因子以及潜在适生区对合理防治和管控具有重要意义。本研究以中国北方农牧交错带为研究区域,基于R语言ENMeval数据包优化的最大熵模型(MaxEnt)和地理信息系统(ArcGIS),结合黄花刺茄在中国北方农牧交错带的分布数据及9个环境因子,分析黄花刺茄在中国北方农牧交错带的潜在适生区。模型预测结果显示,当前模拟的潜在分布区与实际分布基本吻合,受试者工作特征曲线下面积(AUC值)为0.868,预测结果较好。结果表明,最湿季平均温、干旱度指数、降雨量变异系数、海拔是影响黄花刺茄分布的主要环境变量;黄花刺茄在中国北方农牧交错带的高适生区面积约占6.82×104 km2,主要分布在中国北方农牧交错带的东部地区。

关键词: 黄花刺茄, 北方农牧交错带, 适生区, 最大熵模型

Abstract: As a highly hazardous invasive alien species, it is important to identify the dominant environmental factors and potential habitat areas that affect the Solanum rostratum in the agro-pastoral ecotone of northern China in order to rationally control and prevent it. In this study, based on the Maximum Entropy Model (MaxEnt) optimized by the R language ENMeval data package and ArcGIS, combined with the distribution data of S. rostratum and 9 environmental factors in agro-pastoral ecotone of northern China, we predicted the potential suitable growth area of S. rostratum in the agro-pastoral ecotone of northern China. According to the results of the model, the potential distribution area of the current simulation was basically consistent with the actual distribution. The area under the receiver operating characteristic curve (AUC value) was 0.868, and the prediction result was better. The results showed that the mean temperature of wettest quarter, aridity Index, precipitation variation coefficient and altitude were the main environmental variables affecting the potential distribution of S. rostratum. The highly suitable area of S. rostratum in the agro-pastoral ecotone of northern China accounted for about 6.82×104 km2, which was mainly distributed in the eastern part of the agro-pastoral ecotone of northern China.

Key words: Solanum rostratum, Agro-pastoral ecotone of northern, Suitable distribution area, Maximum entropy model (MaxEnt)

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