文献类型：期刊文献

中文题名：气候因子对乌兰察布草原区不同植被类型群落特征的年际影响

英文题名：Interannual Effects of Climate Factors on Community Characteristics of Different Vegetation Types in Ulanqab Steppe

作者：韩雪娇[1] 图雅[2] 刘晓娟[3] 朱媛君[4] 时忠杰[4] 杨晓晖[4]

第一作者：韩雪娇

机构：[1]乌兰察布市野生动植物和湿地保护站,内蒙古乌兰察布012000;[2]北京林业大学水土保持学院,北京100083;[3]乌兰察布市草原工作站,内蒙古乌兰察布012000;[4]中国林业科学研究院荒漠化研究所/生态保护与修复研究所,北京100091

年份：2024

卷号：40

期号：3

起止页码：363-373

中文期刊名：生态与农村环境学报

外文期刊名：Journal of Ecology and Rural Environment

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;Scopus;北大核心:【北大核心2023】；CSCD:【CSCD2023_2024】；

基金：国家自然科学基金国际(地区)合作与交流项目(32061123005);中央级公益性科研院所基本业务费专项资金(CAFYBB2017ZA006)。

语种：中文

中文关键词：气候变化;群落特征;植被类型;乌兰察布草原

外文关键词：climate change;community characteristics;vegetation types;Ulanqab Steppe

分类号：X171

摘要：随着全球气候变化逐步加剧,温度、降水和风速等气候因子对草原群落的影响日趋增强。探索气候变化对不同植被类型群落特征的影响,对于研究草原生态过程、合理利用和保护草原资源以及修复退化草原生态具有重要意义。采用样地调查法考察年平均气温、年平均降水量和年平均风速3个气候因子对2010—2020年乌兰察布草原区根茎草类草地、丛生草类草地、灌木/半灌木草地以及杂类草草地4种植被类型不同群落特征的年际影响进行分析。结果表明:(1)丛生草类草地和杂类草草地植被样地年平均气温、年平均降水量和年平均风速均呈波动性逐年递增趋势,根茎草类草地和灌木/半灌木草地植被样地年平均气温和年平均降水量呈波动性逐年递增趋势,年平均风速呈波动性逐年递减趋势。(2)丛生草类草地、根茎草类草地和杂类草草地植被样地物种丰富度、盖度、平均高度和生物量4种群落特征年际变化整体呈波动性逐年递增趋势,灌木/半灌木草地植被样地4种群落特征年际变化趋势不明显。(3)年平均气温对根茎草类草地和杂类草草地植被样地群落特征影响最大,对灌木/半灌木草地植被样地群落特征无显著影响;年平均风速对杂类草草地植被样地群落特征的影响最大;年平均降水量与4种植被类型样地群落特征整体呈显著正相关,对乌兰察布草原区群落特征的影响程度明显高于年平均气温和年平均风速,是影响该区域群落特征变化的最主要气候因子。
With the gradual intensification of global climate change,the impact of climate factors such as temperature,precipitation,and wind speed on steppe communities is increasing.Exploring the effects of climate change on community characteristics of different vegetation types is of vital significance for studying steppe ecological processes,rational utilization and conservation of steppe resources,and the ecological restoration of degraded steppes.In this study,three climate factors,namely,annual average temperature,annual precipitation,and annual average wind speed,were investigated by using a plot survey method to analyze the interannual effects of different community characteristics of rhizome steppe,tussock steppe,shrubby/semi-shrubby steppe and forb steppe in Ulanqab grassland from 2010 to 2020.The following conclusions were drawn:(1)The annual average temperature,annual precipitation,and annual average wind speed exhibited a fluctuating increasing trend for the tussock and forb steppe;the annual mean temperature and annual mean precipitation of rhizome steppe and shrubby/semi-shrubby steppe showed a trend of increasing year by year,and the annual mean wind speed showed a trend of decreasing year by year.(2)The interannual changes of the 4 community characteristics of tussock steppe,rhizome steppe and forb steppe showed an overall trend of increasing year by year,while the interannual changes of the 4 community characteristics of shrubby/semi-shrubby steppe were not obvious.(3)Annual average temperature exerted the greatest influence on the characteristics of rhizome steppe and forb steppe communities,while it had no significant impact on the characteristics of shrubby/semi-shrubby steppe communities.Annual average wind speed had the most significant effect on the characteristics of the forb steppe community.Annual precipitation demonstrated a significant positive correlation with the characteristics of all four vegetation types,and its influence on the community characteristics of the Ulanqab Steppe region surpassed that of the annual average temperature and annual average wind speed,making it the primary climate factor impacting the community characteristics in this region.