作 者：
张金铭;符龙飞;洪欣;王丽;王智;周守标
单 位：
安徽师范大学环境科学与工程学院;广西壮族自治区中国科学院广西植物研究所;安徽大学资源与环境工程学院;环境保护部南京环境科学研究所;安徽省水土污染治理与修复工程实验室
关键词：
麋鹿保护区;湿地生态系统;草本群落;区系特征;物种多样性
摘 要：
麋鹿是栖息于湿地生境、主要以草本植物为食的大型哺乳动物,石首麋鹿国家级自然保护区是保护麋鹿等珍稀动植物的保护区,探究保护区内草本植物物种组成、区系特点及物种多样性的变化规律,对保护麋鹿及湿地生态系统具有重要意义。本研究以区内草本植物群落为对象,沿水分梯度基准线选取5个1 hm2典型样地进行了调查。结果表明:(1)样地内共有草本维管植物321种,隶属于72科216属,植物区系组成以小型科属为主。分布区类型多样,科级水平上有7个类型和2个变型,以世界分布占明显优势;属级水平上有13个类型,以泛热带分布最多,其次是温带分布。(2)保护区内草本植物的季节动态变化明显,春季和秋季的草本植物物种数分别为169和125种,不同季节相同样地内群落组成存在一定差异。(3)春、秋两季草本植物群落α多样性的变化格局与丰富度指数的变化格局比较一致,表现为春季随水分梯度减少呈总体降低的趋势,而秋季随水分梯度减少呈上升的趋势。
译 名：
Herbaceous flora and species diversity in Shishou Milu National Nature Reserve
作 者：
ZHANG Jin-ming;FU Long-fei;HONG Xin;WANG Li;WANG Zhi;ZHOU Shou-biao;College of Environmental Science and Engineering,Anhui Normal University;Guangxi Institute of Botany,Guangxi Zhuangzu Autonomous Region and Chinese Academy of Sciences;School of Resources and Environmental Engineering,Anhui University;Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection;Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation;
单 位：
ZHANG Jin-ming%FU Long-fei%HONG Xin%WANG Li%WANG Zhi%ZHOU Shou-biao%College of Environmental Science and Engineering,Anhui Normal University%Guangxi Institute of Botany,Guangxi Zhuangzu Autonomous Region and Chinese Academy of Sciences%School of Resources and Environmental Engineering,Anhui University%Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection%Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation
关键词：
deer reserve;;wetland ecosystem;;herbaceous community;;flora characteristics;;species diversity
摘 要：
Milu( Elaphurus davidianus),a species of deer that inhabits wetland habitats,mainly feed on herbs. The Shishou Milu National Nature Reserve is one of the protected areas for milu and other rare animals and plants. Understanding plant species composition,flora characteristics,and species diversity of the herbaceous community in this reserve is of great significance for the conservation of milu and wetland ecosystems. Here,the herbaceous community in the reserve was investigated by selecting five plots( size of 1 hm2) along the water gradient baseline. A total of321 species of herbaceous vascular plants were recorded in the plots,belonging to 216 genera and72 families. The flora was composed of small families and genera. There were various types of distribution,with seven types and two variants at the level of the families and world distribution type being dominant. There were 13 types at the genus level,with the flora dominated by pantropic distribution type and followed by the temperate distribution type. The species richness and community composition of herbaceous plants in the reserve showed significant seasonal dynamics. The richness of herbaceous species in spring and autumn was 169 and 125 species,respectively. Furthermore,the changes of α diversity of herbaceous plant communities was consistent with that of the richness index in spring and autumn,showing a declined trend in spring due to the decreases of water gradient but a rise trend in fall.
