内蒙古典型草原植物的空间分布及其种间关系对模拟气候变化的响应  

Spatial Distribution of Typical Grassland Plants in Inner Mongolia and Their Interspecific Relationships in Response to Simulated Climate Change

作　　者：刘宜萱 Liu Yi-xuan(School of Geography,Inner Mongolia Normal University,Hohhot,Inner Mongolia 010020)

机构地区：[1]内蒙古师范大学地理科学学院,内蒙古呼和浩特010020

出　　处：《农业灾害研究》2023年第12期234-236,共3页Journal of Agricultural Catastrophology

摘　　要：作为主要的陆地生态系统类型之一,草地生态系统容易遭受气候变化的影响,研究典型草原植物种群关系对温度升高和降水变化的反馈,有助于明确未来气候变化背景下典型草原群落结构。共设置4个实验处理,对照(CK),增温(CT),增雨(P),增温增雨(CTW),结果表明:P、CT和CTW处理下,羊草种群的高度、密度和生物量为增加趋势,克氏针茅种群生物量为增加趋势,但密度却呈相反趋势。P、CT处理下唐松草种群的空间分布为均匀分布,CTW处理下银灰旋花种群的空间分布为均匀分布。在未来气候变化的情况下,典型草原区中羊草种群更具有优势。As one of the main types of terrestrial ecosystems,grassland ecosystems are susceptible to the impact of climate change.Studying the feedback of typical grassland plant population relationships on temperature rise and precipitation changes can help clarify the response mechanism.A total of four experimental treatments were set up,including control(CK),warming(CT),warming(P),and warming and warming(CTW).The results showed that under P,CT,and CTW treatments,the height,density,and biomass of the Leymus chinensis population showed an increasing trend,while the biomass of the Stipa grandis population showed an increasing trend,but the density showed the opposite trend.P.The spatial distribution of Tang Songcao population under CT treatment was uniform,while the spatial distribution of Silver Grey Convolvulus population under CTW treatment was uniform.In the context of future climate change,the population of Leymus chinensis in typical grassland areas has more advantages.

关 键 词：气候变化 群落特征 空间分布格局 种间关系 

分 类 号：S812.1[农业科学—草业科学]