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林业资源管理 ›› 2020›› Issue (2): 141-145.doi: 10.13466/j.cnki.lyzygl.2020.02.021

• 科学研究 • 上一篇    下一篇

云杉大小蠹在西藏的适生区分析

肖义发1(), 王梦君1, 李昕宇1, 陈飞1, 王继山1, 张海武2, 次旦普尺2   

  1. 1.国家林业和草原局昆明勘察设计院,昆明 650216
    2.西藏自治区林业和草原局森林病虫害防治站,拉萨 850000
  • 收稿日期:2020-01-10 修回日期:2020-04-27 出版日期:2020-04-28 发布日期:2020-06-15
  • 作者简介:肖义发(1987-),男,江西赣州人,工程师,硕士,主要从事森林经理工作。Email:89058323@qq.com

Analysis on the Potential Distribution Area of Dendroctonus micans in Tibet

XIAO Yifa1(), WANG Mengjun1, LI Xinyu1, CHEN fei1, WANG Jishan1, ZHANG Haiwu2, CIDAN Puchi2   

  1. 1. China Forest Exploration & Design Institute in Kunming,National Forestry and Grassland Administration,Kunming 650216
    2. Forest Pest Management Station of Tibet Autonomous Region,Lasha 850000
  • Received:2020-01-10 Revised:2020-04-27 Online:2020-04-28 Published:2020-06-15

摘要:

为防止全国林业危险性有害生物云杉大小蠹(Dendroctonus micans)在西藏进一步扩散,采用最大熵(Maxent)生态位模型,结合气候、降雨等环境因素,直观、定量地模拟云杉大小蠹在西藏的潜在适生区,并采用特性曲线(ROC)对模拟结果进行验证。模拟结果表明,云杉大小蠹潜在适生区约占西藏总面积的1/6,并主要集中在西藏东南部和中部,这一结论与其寄主植物在西藏的分布基本一致;ROC曲线验证结果表明,Maxent模型对云杉大小蠹在西藏的潜在适生区模拟精度高(AUC=0.97),结果可信。云杉大小蠹的适生区模拟为早期监测和预警提供理论依据,可防止其进一步扩散蔓延。

关键词: 云杉大小蠹, 分布, 模型, 环境因子, 西藏

Abstract:

In order to prevent the further spread of Dendroctonus micans in Tibet,research was carried out to predict potential distribution of Dendroctonus micans in Tibet using the Maxent model as prediction model,and temperature and precipitation as environment variables,the prediction results are verified by the ROC curve.The results show that the potential distribution area of Dendroctonus micans is about 1/6 of the Tibet's total area,and distributed in southeastern and central Tibet,this result is basically consistent with the distribution of the host.The ROC curve test indicated that the prediction with Maxent model had a higher precision(AUC=0.97),and was credible.These provided a theoretical basis for the prevention and control Dendroctonus micans and some effective measures must be taken to prevent its spread for the further.

Key words: Dendroctonus micans, distribution, model, environmental factor, Tibet

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