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农学学报 ›› 2026, Vol. 16 ›› Issue (2): 93-97.doi: 10.11923/j.issn.2095-4050.cjas2024-0214

• 农业信息 农业气象 • 上一篇    下一篇

基于MaxEnt模型的山西省冻绿分布预测

徐瑢()   

  1. 山西省林业和草原科学研究院,太原 030012
  • 收稿日期:2024-12-18 修回日期:2025-03-30 出版日期:2026-02-20 发布日期:2026-02-12
  • 作者简介:

    徐瑢,女,1982年出生,山西五寨人,高级工程师,硕士,从事林业育种研究。通信地址:030012 山西省太原市新建南路105号 山西省林业和草原科学研究院,E-mail:

  • 基金资助:
    山西省林业重点研发计划专项项目“鼠李属重点树种种质资源收集与繁育技术研究”(JLYF-2024-26)

Prediction of Rhamnus utilis Distribution in Shanxi Province Based on MaxEnt Model

XU Rong()   

  1. Shanxi Academy of Forestry and Grassland Sciences, Taiyuan 030012
  • Received:2024-12-18 Revised:2025-03-30 Online:2026-02-20 Published:2026-02-12

摘要:

以冻绿为研究对象,利用CHELSA的当前气候数据和GFDL-ESM4的3种发展情景数据,构建基于全球2057个记录点的MaxEnt分布模型。结果表明,最暖季度降水量、温度季节性变化以及昼夜温差月均值是影响冻绿分布的主导因素,MaxEnt模型的AUC达到0.987,模型拟合结果良好。冻绿在山西全省均有较高分布概率,其中在中南部的分布概率较高。未来情景预测表明,冻绿的分布区域将向北偏东方向扩展,移动速度约为492~975 m/a,但在运城盆地可能出现非最适生境。本研究探讨限制冻绿的主导气候因子,模拟其潜在适宜分布区,可为冻绿的繁育、开发利用提供理论依据。

关键词: 冻绿, MaxEnt模型, 分布, 预测, 气候因子, 气候变化, 山西

Abstract:

In this study, taking Rhamnus utilis as the research object, a MaxEnt distribution model was constructed based on 2057 global record points using current climate data from CHELSA and three development scenario data from GFDL-ESM4. The results showed that the precipitation in the warmest season, seasonal changes in temperature, and monthly mean diurnal temperature difference were the dominant factors affecting the distribution of R. utilis. The AUC of the MaxEnt model reached 0.987, indicating a good fit of the model. R. utilis has a high probability of distribution throughout Shanxi Province, with a higher probability in the central and southern regions. Future scenario predictions indicate that the distribution area of R. utilis. will expand towards the northeast direction, with a movement speed of approximately 492 to 975 m/year, but there may be non optimal habitats in the Yuncheng Basin. This study explores the dominant climatic factors that limit R. utilisand simulates their potential suitable distribution areas, which can provide theoretical basis for the breeding, development and utilization of R. utilis.

Key words: Rhamnus utilis, MaxEnt model, distribution, prediction, climate factor, climate change, Shanxi