草业学报2024，Vol.33Issue(4)：12-21,10.DOI:10.11686/cyxb2023207
不同利用方式对大针茅草原植被群落特征的影响
Effects of different utilization methods on community characteristics of primary vegetation of Stipa grandis steppe,Inner Mongolia,China
摘要
Abstract
This study explored the effects of different utilization methods on community plant characteristics of Stipa grandis steppe,in order to provide scientific data to assist with the formulation of an optimal utilization system for this grassland.Together with a household survey,plant communities were investigated in S.grandis steppe with three utilization modes:annual mowing,annual grazing and seasonal rotational grazing.We calculated important values and diversity indices to analyze the relationship between plant diversity and biomass.It was found that,1)The dominant plant groups of S.grandis grassland under the three utilization modes were consistent.2)There was no significant difference in community species diversity among the three utilization methods,but there was significant difference in functional group species diversity.The species diversity of perennial grasses under mowing was higher than that under annual grazing and seasonal rotation grazing;the species diversity of shrubs and subshrubs under annual grazing was higher than that of annual grazing and seasonal rotation grazing.3)Above-ground standing crop of annual mowing and seasonal rotation grazing was significantly higher than that of annual grazing.4)There was a significant positive correlation between plant diversity and biomass under annual mowing and seasonal rotation grazing.In conclusion,mowing and seasonal rotation grazing maintained high species diversity while maintaining high above-ground standing crop,which is conducive to the sustainable use of S.grandis steppe,but the community structure of the two was different and therefore would support different ecosystem functions.关键词
利用方式/典型草原/生产力/多样性Key words
mode of utilization/typical steppe/productivity/diversity引用本文复制引用
索晓晶,王琪,项磊,高贺,运向军,哈斯巴根,吴金蕊,董文成,滑博伟,牟金燚..不同利用方式对大针茅草原植被群落特征的影响[J].草业学报,2024,33(4):12-21,10.基金项目
内蒙古自治区科技计划项目(2021GG0058),全国草原资源调查监测专项任务(呼和浩特中心)(DD20211599),内蒙古自治区自然科学基金(2023MS03012)和内蒙古自治区自然科学基金(2021MS03076)资助. （2021GG0058）
