Acta Agrestia Sinica ›› 2024, Vol. 32 ›› Issue (2): 579-587.DOI: 10.11733/j.issn.1007-0435.2024.02.027

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Simulation of Potential Suitable Growth Areas of Shrubs in Hinggan League Steppe

SONG Qing1,2,3, FU Hong-li1,2,3, WANG Tie-mei1,2,3, SU Yi-ran1,2,3, LIANG Liu-xi2,5, TONG Laga2,5, XU Jian2,4, DONG Hao-ye2,4, TAI Tala2,6   

  1. 1. School of Grassland Science, Beijing Forestry University, Beijing 100083, China;
    2. National Positioning Observation and Research Station, Horqin Right Wing Front Banner, Xing'an League, Inner Mongolia 137400, China;
    3. Research Center of Grassland Resources and Ecology, Beijing Forestry University, Beijing 100083, China;
    4. Grassland workstation, Xing'an League, Inner Mongolia 137400, China;
    5. Grassland workstation, Horqin Right Wing Front Banner, Xing'an League, Inner Mongolia 137400, China;
    6. Lvshui livestock farm breeding center, Horqin Right Wing Front Banner, Xing'an League, Inner Mongolia 137400, China
  • Received:2023-06-18 Revised:2023-09-07 Online:2024-02-15 Published:2024-03-06

兴安盟草原灌丛植被潜在适生区分布模拟分析

宋晴1,2,3, 付鸿莉1,2,3, 王铁梅1,2,3, 宿逸然1,2,3, 梁留喜2,5, 通拉嘎2,5, 胥健2,4, 董昊野2,4, 邰塔拉2,6   

  1. 1. 北京林业大学草业与草原学院, 北京 100083;
    2. 内蒙古科尔沁草原生态系统国家定位观测研究站, 内蒙古 兴安盟 137400;
    3. 北京林业大学草地资源与生态研究中心, 北京 100083;
    4. 内蒙古兴安盟林业和草原工作站, 内蒙古 兴安盟 137400;
    5. 内蒙古科尔沁右翼前旗草原工作站, 内蒙古 兴安盟 137400;
    6. 内蒙古科尔沁右翼前旗绿水种畜场繁育中心, 内蒙古 兴安盟 137400
  • 通讯作者: 王铁梅,E-mail:alfalfa@126.com
  • 作者简介:宋晴(2000-),女,汉族,山东枣庄人,硕士研究生,主要从事草地资源与生态方面研究,E-mail:songqing13@163.com
  • 基金资助:
    内蒙古自治区草原资源评价项目资助

Abstract: Located in the transition zone from the Daxingan Mountains to the Songnen Plain,Hinggan League grassland is an important grassland ecological protection barrier and very sensitive to climate change and anthropogenic disturbances. Shrub as its native vegetation has the potential to expand further when subjected to external disturbance. In order to reveal the environmental factors affecting the shrubland vegetation in Hinggan League Steppe,the MaxEnt model was used to predict the potential suitable growth areas of shrubs in Hinggan League steppe basing on 61 shrub distribution points and 22 environmental factors. The results showed that isotherm,slope,driest monthly precipitation and annual mean temperature were the main environmental factors affecting the distribution of shrubland in Hinggan League steppe. The potentially suitable areas of shrub vegetation were mainly distributed in the west and southwest of Horqin Right Wing Front Banner and Middle Banner. In the future climate scenario,the overall distribution of shrubland would extend to the high latitude area,and the shrub line would climb upward. When greenhouse gas emissions continually increased,it might cause water shortage in the Hinggan League,and then lead to a significant decrease in the area of highly suitable area of shrubland,and some of the highly suitable area would be transformed into moderately and low suitable area.

Key words: MaxEnt model, Shrub vegetation, Potential suitable growth areas

摘要: 兴安盟位于大兴安岭向松嫩平原过渡带,是一道重要的草原生态保护屏障,兴安盟草原对于气候变化和人为干扰十分敏感,灌丛作为其原生植被受到外界干扰有可能会进一步扩张。为了探究影响兴安盟草原灌丛植被的环境因子,本研究基于61个兴安盟草原灌丛分布点和22个环境因子,利用MaxEnt模型对兴安盟草原灌丛植被潜在适生区预测。结果表明,等温性、坡度、最干月降水量、年平均气温是影响兴安盟草原灌丛分布的主导环境因子。兴安盟灌丛植被潜在适生区主要分布于西部、西南部的科尔沁右翼前旗、中旗等地区;未来气候情境下,兴安盟草原灌丛总体分布将向高纬度地区延伸,灌木线向上爬升。当温室气体排放量持续增加时可能会引起兴安盟地区水分匮缺,导致草原灌丛高适生区面积大幅降低,部分高适生区向中、低适生区转化。

关键词: MaxEnt模型, 灌丛植被, 潜在适生区

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