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应用生态学报 ›› 2023, Vol. 34 ›› Issue (5): 1272-1280.doi: 10.13287/j.1001-9332.202305.017

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辽宁省入侵植物曼陀罗的生境适宜性评价——基于Biomod2组合模型

王子文1,2,3, 尹进2,3, 王星2,3, 陈越2,3, 毛子昆2,3, 蔺菲2,3, 巩宗强4, 王绪高2,3*   

  1. 1辽宁大学生命科学院, 沈阳 110036;
    2中国科学院沈阳应用生态研究所, 中国科学院森林生态与管理重点实验室, 沈阳 110016;
    3辽宁省陆地生态系统碳中和重点实验室, 沈阳 110016;
    4中国科学院沈阳应用生态研究所, 中国科学院污染生态与环境工程重点实验室, 沈阳 110016
  • 收稿日期:2023-01-13 接受日期:2023-03-14 出版日期:2023-05-15 发布日期:2023-11-15
  • 通讯作者: *E-mail: wangxg@iae.ac.cn
  • 作者简介:王子文, 男, 1998年生, 硕士研究生。主要从事生物入侵与物种分布研究。E-mail: ziwendamowang@163.com
  • 基金资助:
    辽宁省自然生态系统外来入侵物种调查与评估项目(2021000079)和辽宁省生物多样性本底调查与评估项目

Habitat suitability evaluation of invasive plant species Datura stramonium in Liaoning Province: Based on Biomod2 combination model

WANG Ziwen1,2,3, YIN Jin2,3, WANG Xing2,3, CHEN Yue2,3, MAO Zikun2,3, LIN Fei2,3 , GONG Zongqiang4, WANG Xugao2,3*   

  1. 1College of Life Sciences, Liaoning University, Shenyang 110036, China;
    2CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    3Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Shen-yang 110016, China;
    4CAS Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2023-01-13 Accepted:2023-03-14 Online:2023-05-15 Published:2023-11-15

摘要: 曼陀罗作为辽宁省一种主要的入侵植物,入侵成功后难以清除,对当地生态环境、生物多样性等形成较大的威胁。为了评价曼陀罗在辽宁省的生境适应性,我们通过实地调查、数据库查询等方式收集了曼陀罗在辽宁省的地理分布数据,利用Biomod2组合模型研究曼陀罗在当前和未来气候情景下的潜在适宜分布区及其主要环境影响变量。结果表明: 由广义线性模型(GLM)、广义增强回归模型(GBM)、随机森林模型(RF)、最大熵模型(MaxEnt)4个模型组成的组合模型的模拟效果良好。将曼陀罗的适生区分为高、中、低和不适生区,高适生区主要分布于辽宁省的西北部和南部,面积约为3.81万km2,占全省总面积的25.8%;中适生区主要分布于辽宁省的西北部和中部,面积约为4.19万km2,占全省总面积的28.3%。坡度和土壤表层(0~30 cm)黏土含量对曼陀罗生境适宜性的影响最大,曼陀罗的适宜性随着坡度和土壤表层黏土含量的增大呈现先上升后下降的趋势。在未来不同的气候变化情景下,曼陀罗的总适生区均呈现扩张趋势,在锦州、盘锦、葫芦岛、丹东等地适宜性明显增加。

关键词: 生物入侵, 曼陀罗, 潜在分布, 气候变化

Abstract: Datura stramonium, as a major invasive plant in Liaoning Province, is difficult to be removed after its successful invasion, and is a great threat to ecological environment and biodiversity. To evaluate the habitat suitabi-lity of D. stramonium, we collected its geographic distribution data in Liaoning Province through field investigation and database query, and using the Biomod2 combination model, and investigated its potential and suitable distribution areas and main influencing environmental variables at present and under future climate change scenarios, respectively. The results showed that the combined model which composed of GLM (generalized linear model), GBM (generalized boosting regression model), RF (random forest model), and MaxEnt (maximum entropy model) had a good performance. By classifying the habitat suitability of D. stramonium into four categories: high-, medium-, low- and un-suitable habitats, we found that the high-suitable habitats were generally distributed in the northwest and south of Liaoning Province, with an area of about 3.81×104 km2, accounting for 25.8% of the total area. The medium-suitable habitats were mostly distributed in the northwest and central parts of Liaoning Province, with an area of about 4.19×104 km2, accounting for 28.3% of the total area. Slope and clay content of topsoil (0-30 cm) were the two main variables explaining the habitat suitability of D. stramonium, and the total suitability of D. stramonium first increased and then decreased with the increasing slope and clay content of topsoil in this region. Under future climate change scenarios, the total suitability of D. stramonium showed an expanding trend, and its suitability would be obviously increased in Jinzhou, Panjin, Huludao, and Dandong.

Key words: biological invasion, Datura stramonium, protentional distribution, climate change