【摘要】 以小兴安岭北部公别拉河流域上游沼泽湿地为研究区,选择6类典型湿地进行植物多样性研究。结果表明:白桦-五蕊柳-修氏苔草群落草本层、灌木层和整体多样性指数均最大,其稳定性较好,目前所处演替阶段将会持续较长时间。柴桦-乌拉苔草群落草本层和整体多样性指数较高,但灌木层最低,群落稳定性较差,将会有新的灌木或乔木树种侵入。小白花地榆-丛苔草群落和柴桦-笃斯越橘-沼泽皱蒴藓沼泽群落各项多样性指数均较低,这与其季节性积水较长的生境有直接关系。更多还原

【Abstract】 Taking the wetlands of Gongbiela River upper basin in north Xiaoxing’anling Mountain as research area,six kinds of typical wetlands were selected to research the plant diversity.The results showed that the herb layer,shrub layer and the entirety of Betula platyphylla-S.pentandra-Carex schmidtii community all had the biggest diversity index and good stability,which guaranteed the current succession stage would last a long period.The herb layer and the entirety of B.fruticosa-Carex meyeriana Kunth community had higher diversity index,whereas the index of shrub layer was low,as a result,the stability of this community was bad,which would lead to the invasion of new shrub or tree species.Each diversity index of Sanguisorba parviflora-Carex caespitosa community and B.fruticosa-Vacinium uliginosum-Aulacomnium paluster marshy community was all low,which directly related to the habitat with long seasonal water standing.更多还原