乡土树种概念及其简易判定

乡土树种含义明确,尽人皆知,却难于判定。为了提高乡土树种的判定能力,从分析乡土树种概念及其应用价值入手,研究了树种俗名的命名原因、命名方式,认为俗名具有与文献记载相同的记录价值,可以用作乡土树种判定标准,并简略定义乡土树种为土生土长有土名的树种。最后概要介绍,在走访调查俗名的过程中,要注意避免方言差异引起的误听误记。     

《食用菌学报》载文、作者、引文、被引情况及出版时滞的统计分析

根据信息计量学原理运用文献分析法对《食用菌学报》1994～2008年载文数量、分类、基金论文率、论文合著、引文情况以及出版时滞等因素进行了分类和量化处理,同时对学报载文被引用情况进行统计分析,为作者和读者了解学报的发展及其影响力提供客观数据。     

《湖南农业大学学报》论文作者的统计分析

以１９８０－１９９７年的《湖南农业大学学报》为样本,统计分析了科技论文的合著率,文献单元作者系数,论文作者单位间的合作及文献中体现的学科间的渗透情况,揭示了现代科学技术发展中合作科研日益加强的必然趋势。     

园林植物Xanthostemon youngii的中文命名初探

文章简述了外来种Xanthostemon youngii C.White&Francis的引种概况,重点探讨了该植物中文命名的依据,认为不宜称为年青蒲桃,而应称为扬格红蕊黄蕊木。     

1949～2003年枣研究文献计量分析

本文从论文的总量变化趋势、核心作者群、期刊分布和主题分布等方面对19492003年专业期刊发表的枣树文献进行了统计分析,结果得出,有关枣的总文献量为2402篇,署名文献2354篇,并确定了36人为核心作者和18种核心期刊。     

河南优秀图书馆学研究队伍计量分析

运用文献计量学方法,对2000～2002年在图书馆学情报学核心期刊发文的河南省作者进行计量分析,可知河南省拥有一支庞大的、较高学术水平的图书馆学研究队伍。     

Enhanced Lead Uptake by an Association of Plant and Earthworm Bioaugmented with Bacteria

Lead (Pb) is recorded as the second most hazardous pollutant of the environment. Previous cases of Pb bioremediation has been reported using single biosystem, but very few reports are available in biological approaches using multi-biosystems to achieve an enhanced bioremoval of Pb. The present study evaluated the capacity of a unique association of Pennisetum purpureum, a hyperaccumulator plant, and Lumbricus terrestris (earthworm) bioaugmented with a Pb-resistant bacterium, obtained from an industrially contaminated site and identified as isolate VITMVCJ1 Klebsiella variicola, to bioremediate Pb. The Pb-resistant gene was amplified in the bacterial isolate VITMVCJ1. The study was conducted for 60 d. Results verified that the bioaugmentation process enhanced 1) root and shoot length of the plants, 2) chlorophyll content of the plants, and 3) biofilm-producing ability of the microbes from the rhizosphere region of the plants. The total phenolic and flavonoid contents were found to be lower in the plants in the bioaugmented setup. The study also observed a reduction in the toxic effects of Pb on earthworm and plant. The earthworm was used to assess the Pb-induced stress syndrome after exposure to sublethal concentrations of Pb in the soil. A reduction in the content of malondialdehyde, a potential biomarker, on exposure to Pb demonstrated the role of the inoculum to alleviate heavy metal-induced stress in earthworms. All three symbionts accumulated Pb; Pb was accumulated mainly in the root of the plant, and poorly in the shoot of the plant and body mass of the earthworm. The bioaugmentation system exhibited stable and excellent uptake of Pb from the contaminated soils. The results of the present study suggest the positive effect of the synergistic association of the plant and earthworm with appropriate microbes for the bioremoval of Pb.     

Phytosequestration of Carbon in Miscanthus × giganteus and Pinus sylvestris L. in Degraded Zinc Smelter and Post-Mining Soils

正Dear Editor,Pinus sylvestris L.is one of the most popular and predominant tree species in Central Europe and Scandinavia.Its cultivation depends on atmospheric conditions,soil fertility,use of fertilizers,and individual characteristics of the trees.Pinus sylvestris L.wood,roots,and needles are used for energy production.Pi-     

规范水果中文名称 促进植检工作发展

我国水果中文名称混乱、缺乏规范的命名系统,给水果贸易流通带来极大不便,阻碍植物检疫工作的发展。本文以《中国植物志》为标准,整理规范了中国大陆允许进境的52种水果的中文名称,同时列举了相应水果的拉丁学名、俗名、常用英文名和常用商品名,以期为水果进境检疫、科学研究和贸易流通提供参考。     

早竹的正确学名及原植物考证

概述了早竹学名变动的历史沿革,支持将Phyllostachys violascens(Carr.) A.et C.Riv.作为早竹的正确学名,而将Ph.praecox C.D.Chu et C.S.Chao减为其异名的分类学处理结果。通过文献考证和实物照片比较分析认为,在国产早竹复合体中,产于浙皖毗连地区的新秆深绿带紫色、密被白粉、节部紫色,老秆灰绿色或黄绿色并有暗黄色或淡褐色纵条纹,其土名称之为"土早竹"(也称"宽叶早竹")这一类型与Ph.violascens(Carr.) A.et C.Riv原植物相符。而Ph.praecox C.D.Chu et C.s.Chao模式植株则为栽培品种"余杭早竹",但其原发表时的营养器官形态描述中混有"土早竹"的特征。随着近20余年来"土早竹"资源的锐减,应加强其保护。