登录

双语推荐：藜科

进入期刊文章
为了了解青岛地区秋季为害苜蓿生产的主要杂草种类及其发生动态,作者于2012年8～10月在青岛畜牧科技示范园牧草试验基地的人工苜蓿田,采用普查与样线法相结合的方法,调查了主要杂草的发生种类及其生长动态。结果表明：在青岛地区紫花苜蓿田秋季发生的杂草种类有16种（隶属11科）,多为夏季1 a生和多年生杂草。出现数量较多、为害较大的杂草种类是以马唐、稗草和狗尾草为主的禾本科,以苍耳为主的菊科,以反枝苋和刺菜为主的苋科,以绿藜为主的藜科和以龙葵为主的茄科,其中优势种为禾本科。自8月开始,禾本科和藜科杂草已经开始结实,基本不再生长;其他科杂草处于苗期、营养期或花期,仍在生长。
In order to understand the main weeds species which harm alfalfa production and its occurrence dynamic in autumn of Qingdao area, the species and the dynamic growth were investigated using the methods of census and sampling method of combining in the artificial alfalfa fields of forage base of Qingdao animal science and technology demonstration park from August to October of 2012.The results showed that there were 16 species of weeds in autumn (belonging to 11 families) in the artificial alfalfa fields of Qingdao area, and most of them were annual and perennial weeds in summer.The weed species with large number and higher damaged were gramineae such as Digitaria sanguinalis, Echinochloa crusgalli, Setaira viridis, compositae such as Sphaerotheca fuliginea Poll, amaranthaceae mainly with Amaranthus retroflexus and Cynara cardunculus, chenopodiaceae mainly with Chenopodium glaucum and solanaceae mainly with Solanum nigrum, the dominant species was gramineae.Since August, gramineae and ch

[ 可能符合您检索需要的词汇 ]

进入期刊文章
阿拉善荒漠区分布有种子植物73科,328属,820种,优势现象明显,优势科8个:菊科、禾本科、豆科、藜科、毛茛科、蔷薇科、十字花科和莎草科;表征科8个:香蒲科、麻黄科、柽柳科、蒺藜科、胡颓子科、藜科、眼子菜科和蓼科。植物区系成分多样,其中,以世界广布成分为主,共35科,占总科数的47.95%,它们对当地的生态环境具有重要的决定地位;其次为温带分布,共27科,占总科数的36.97%;热带成分、热带亚热带成分和泛热带成分较少,共11科,占总科数的15.07%。这些均反映出植物的分布与气候相适应的特点。
There are 73 families, 328 genera, 820 species seed plants which are obvious dominant phenomenon in Allah Desert of China. There are 8 dominant families （Compositae,Gramineae Leguminosae,Chenopodiaeeae, Ranunculaceae,Rosaeeae,Crueiferae,Cyperaceae）and 8 typical families（Typhaceae,Ephedraceae,Tamaricaceac, Zygophyllaceae,Elaeagnaeeae,Chenopodiaceae,Polyg-onaeeae,Potamogetonaeeae）. The flora has a diverse geographical elements and the mainly ones is cosmopolitan elements （35 families）,they are accounting for 47.95%, they play a important role on the local ecological environment.The followed is temperate elements （27 families）and they are accounting for 36.97%, Tropics,Tropics-Subtropics and exudes tropics elements are only 11 families and accounting for 15.07%.It shows that the distribution of plants adapt to the climate.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
对黄河兰州段湿地植物区系组成、生态特征和物种多样性进行了系统分析。结果表明:黄河兰州段湿地共有植物132种,隶属于33科90属,菊科、禾本科、藜科、莎草科和蝶形花科是物种数占前5位的科,占总种数的59.85%;蒿属、藜属、蓼属和藨草属是含物种数占前4位的属,优势科、单种属现象明显。湿地植被分为9个群丛,包括木本群丛2个(旱柳群丛、柽柳-枸杞群丛),草本群丛7个(芦苇-萹蓄群丛、莳萝蒿群丛、酸模叶蓼-灰绿藜群丛、垂穗鹅观草-宽叶独荇菜群丛、碱蓬群丛和地肤-冰草群丛);并提出了对黄河兰州段湿地植被保护利用的对策。
Based on investigating the wetland resources of Yellow River in Lanzhou on,analysis the wetland flora composition,species diversity and ecological characteristics systematicly.The results show that:there are 132 plants in wetland plant along the Yellow River,belonging to 33 families and 90 genera.Asteraceae,Poaceae, Chenopodiaceae,Cyperaceae and Fabaceae species is the number of families accounted for the top five,share to 59.85% of the total amount,Artemisia,Chenopodium,Polygonum spec and mariqueter is the number of genera accounted for the top four,dominant families,single-species phenomenon obviously.wetland vegetation at Lanzhou section of the Yellow river is divided into 9 associations.Including 2 woody associations,there are Salix matsudana Ass.Tamarix chinensis + Lycium chinense ,and 7 herbaceous associations,there are Phrag-mites + Polygonum aviculare Ass.Artemisia anethoides Ass.Polygonum lapathifolium +Chenopodium glau-cum Ass.Calamagrostis pseudophragmites + Phragm

[ 可能符合您检索需要的词汇 ]

进入期刊文章
目的：小叶菝葜是抗痛风性关节炎的中草药，探讨行质量评价方法很有必要。菝葜科植物中的标志性化合物-白藜芦醇是公认的具有明确疗效的化合物。方法：高效液相色谱（HPLC），流动相乙腈-水（25：75）；检测波长320 nm。结果：该方法可以用于小叶菝葜中白藜芦醇的含量测定。结论：本研究可建立小叶菝葜中白藜芦醇的测定含量方法，为进一步制定该中草药的质量标准奠定基础。
Smilax macrophylla is a type of Chinese herbal medicine for the treatment of gouty arthritis. Study on its quality evaluation method was very necessary. Resveratrol (trans-3,5,4''-trihydroxystilbene), its generally acknowl-edged major compound with definite therapeutic effect, was detected in the root of S. macrophylla. HPLC was used with the mobile phase of acetonitrile-water (25:75). The detection wavelength was 320 nm. The results showed that the method can be used in content determination of resveratrol in S. macrophylla. It was concluded that the study was able to establish content determination method of resveratrol in S. macrophylla in order to lay the foundation of the establishment of quality standard of this Chinese herbal medicine.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
目的调查成都市城区大气气传花粉的种类、数量、季节消长规律。方法采用Durham质量法收集气传花粉,对成都市城区进行为期1年的大气气传花粉调查,并分析其分布规律。结果成都市城区2011年全年均有花粉飘散,呈现出明显的2个高峰:第1个高峰出现在3-6月,占全年花粉总数的72.76%,以松属(29.63%)、胡桃科(18.54%)、蔷薇科(7.97%)为主;第2个高峰出现在9-10月,占全年花粉总数的11.63%,以菊科(4.27%)、藜科(3.17%)、棕榈科(0.89%)为主。结论成都市城区2011年全年共有20个科属的花粉飘散,3-6月和9-10月为花粉飘散高峰期。松属、胡桃科、蔷薇科花粉是最主要的春季优势花粉,菊科、藜科、棕榈科是最主要的秋季优势花粉,胡桃科为成都市城区独有的花粉。
Objective To explore the species ,amounts ,dispersal variation of airborne pollens in urban dis-trict of Chengdu .Methods The investigation was completed in urban district of Chengdu from January 1 ,2011 to December 31 ,2011 .The pollens were collected by Durham gravity method and all kinds of pollens were identified and counted with microscope .Results There were various kinds of airborne pollens in atmosphere of the urban district of Chengdu throughout 2011 .The dispersal variation of airborne pollens leaded to two peaks ,the first peak occurred in March ,April ,May and June .The predominant pollens were Pine L .pollen ,Juglandaceae pollen and Rosaceae pollen .The second peak occurred in September and October ,and the predominant pollen was Com-positae pollen ,Chenopodiaceae pollen and Palmaceae pollen .Conclusion There were 20 species airborne pollens in atmosphere in urban district of Chengdu throughout 2011 .The dispersal variation of airborne pollens leaded to two peaks ,the firs

[ 可能符合您检索需要的词汇 ]

进入期刊文章
为了探索祁连山北坡垂直气候带植被群落分布特征，采用样地调查和档案资料整理相结合的方法，按照海拔梯度变化格局研究植被群落的梯度特征，结果表明：（1）祁连山北坡植物分属84科399属1044种，从大到小依次为菊科、禾本科、毛茛科、蔷薇科、豆科、藜科、伞形科、唇形科、石竹科、十字花科，这前10个科的属和种均占祁连山植物属和种的54．89％；（2）沿海拔梯度，祁连山北坡植被群落呈现5大植被带和16个主要的、典型的植被群落。
In order to explore the characteristics of distribution of vegetation community in vertical climatic zones in the north slope of Qilian Mountain ,adopting combined methods of sample survey & file data compilation ,gradient characteristic of vegetation community was discussed according to changes of altitude .Result shows that :(1) it has 84 families ,399 genera & 1 044 species in the north slope of Qilian mountain .These first ten families are Asterace-ae ,Poaceae ,Ranunculaceae ,Rosaceae ,Leguminosae ,Chenopodiaceae ,Umbelliferae ,Lamiaceae ,Caryophyllaceae ,Cru-ciferae ,which accounted for 54 .89% of all kinds of genera and species in Qilian Mountains .(2) according to altitude gradient ,five major vegetation zones and 16 typical vegetation communities were presented in the north slope of Qil-ian Mountain .

[ 可能符合您检索需要的词汇 ]

进入期刊文章
维尼非林( viniferin)是白藜芦醇寡聚体的总称，其作为植保素存在于豆科、蓼科、葡萄科、毛茛科和龙脑香科等植物中，并承担抗菌、抗真菌和病毒侵染以及紫外损伤等生理功能。维尼非林具有抗氧化、抗病原微生物、抗炎和抗肿瘤等药理活性，且对心脑血管和神经退行性疾病具有改善和防治作用。本文对近年维尼非林药理活性研究进展进行综述，为其药物开发和应用提供参考。
Viniferin is the generic term of oligomers of resveratrol, which acts as phytoalexin in Leguminosae, Polygonaceae, Vitaceae, Ranunculaceae, Dipterocarpaceae and other plants. Viniferin plays important physiological roles in protecting against UV damage and resisting bacterial fungal and viral infection in plants. Nevertheless, these oligomers have shown various pharmacological activities including antioxidative activities, anti-pathogenic, anti-inflammatory and anti-tumor activities. This paper review the recent advances in research of viniferins microbes to show their key pharmaceutical activities for pharmaceutic references.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
为明确重庆市烟田杂草的种类、分布和危害情况,采用倒置W九点取样法对重庆市烟田杂草进行了调查.结果表明:重庆市烟田杂草共有121种,隶属于35科,其中阔叶杂草93种,占76.86%;禾本科杂草19种,占15.70%;其他杂草9种,占7.44%.一年生杂草68种,占56.20%;多年生杂草53种,占43.80%.根据各杂草相对高度、相对盖度、相对多度的综合值进行评价,藜、紫苏、尼泊尔蓼、马唐、牛膝菊、艾蒿、狗尾草和黄花蒿是重庆市烟田的优势杂草.地区间杂草发生危害情况差异显著,尼泊尔蓼、牛膝菊和雀稗在渝东北植烟区发生危害较为严重,艾蒿、马唐、狗尾草、西来稗、紫苏和藜次之;渝中部植烟区以藜发生危害较为严重,马唐、尼泊尔蓼、牛膝菊、黄花蒿、铁苋菜和春蓼次之;渝东南植烟区以藜、紫苏、黄花蒿和狗尾草的危害占优势.
An investigation was carried out by inverted W nine point sampling method to study the catego ‐ries ,distribution and damage of weeds in tobacco fields in Chongqing Municipality .The results showed that there were 121 weed species belonging to 35 families ,including 93 kinds of broad‐leaved weeds (ac‐counted for 76?86% ) ,19 kinds of gramineous weeds (accounted for 15?70% ) and 9 kinds of the others (accounted for 7?44% ) ;among them ,there were 68 kinds of annual weeds (accounted for 56?20% ) and 53 kinds of perennial weeds (accounted for 43?80% ) .According to comprehensive value of the relative height ,relative coverage and relative abundance of weeds , Chenopodium album L? , Perilla frutescens (L? ) Britt? , Polygonum nepalense Meisn? , Digitaria sanguinalis (L? ) Scop? , Galinsoga p arviflora Cav? ,A rtemisia argyi Levl? et Vant? ,Setaira viridis (L? ) Beauv? and A rtemisia annua L? were domi‐nant weeds in Chongqing .Weed damages in different districts differed signi

[ 可能符合您检索需要的词汇 ]

进入期刊文章
为系统评价南亚热带不同林龄人工针阔混交林生物多样性的状况,在广东省佛山市云勇林场选择立地条件相近的针阔混交林,对乔木层、灌木层和草本层的生物多样性进行了比较。针阔混交林分为3个林龄段,其中针阔混交林Ⅰ为10~11 a生,针阔混交林Ⅱ为7~9 a生,针阔混交林Ⅲ为3~5 a生。生物多样性用物种丰富度指数(S)、Shannon-Wiener指数(H'')、Simpson优势度指数(D)和Pielou均匀度指数(E)衡量。结果表明:随着林龄的增大,针阔混交林乔木层和灌木层植物种数先减小再增大,草本层则先增大再减小。针阔混交林乔木层重要值最大的科均为杉科,其重要值随林龄的增大呈现出先升高后降低的趋势,表明杉木在演替过程中不断衰退,逐渐被阔叶树种所取代。不同林龄针阔混交林乔木层主要以樟科、金缕梅科、山茶科、大戟科、芸香科和木兰科占优。在乔木层,重要值较高的造林树种包括米老排、阴香、山杜英、藜蒴、香樟、火力楠、楝叶吴茱萸,这些树种适宜于本地区杉木林改造;重要值较高的自然更新乔木物种为鸭脚木、山苍子、山麻黄和银柴。在灌木层,重要值较高的物种因林分而异,藜蒴、鸭脚木、山苍子、山黄麻等乔木树种的幼苗具有较高的重要值,表明部分造林树种能够实现自我更新,群落处于正向演替过
Plant diversity of conifer-broadleaf mixed forest (CBMF )of different age was studied in Yu-nyong Forest Farm of Foshan,Guangdong.Three CBMF in similar site conditions were 10 to 1 1 ,7 to 9 and 3 to 5 years old,respectively.The species abundance index (S),Shannon-Wiener index (H′),Simpson index (D)and Pielou index (E)were chosen to compare the diversity of tree,shrub and herbaceous layer of the three CBMF.The results were as following:along with the increasing age of CBMF,species number decreased first and then in-creased in tree and shrub layer,but the contrary change was found in herbaceous layer.The important value (IV) of Taxodiaceae was highest than other families in tree layer,but declined at 10 to 1 1 years old,indicating Cunning-hamia lanceolata declined and was replaced by other broadleaf species.The families of Lauraceae,Hamamelidace-ae,Theaceae,Euphorbiaceae,Rutaceae and Magnoliaceae dominated in tree layer of CBMF.These species,in-cluding Mytilaria laosensis,Cin

[ 可能符合您检索需要的词汇 ]

进入期刊文章
为安顺市烟田杂草的综合防除提供参考，采取定点调查方法对安顺市烟田杂草的种类及发生危害状况进行调查。结果表明：1）安顺市烟田有25科55种杂草。其中，菊科13种，占23．64％；禾本科10种，占18．18％；蓼科5种，占9．1％；莎草科、苋科、石竹科、伞形科、玄参科各2种，均占3．64％；大戟科、毛茛科、藜科、堇菜科、酢浆草科、荨麻科、旋花科、鸭跖草科、蔷薇科、十字花科、唇形科、木贼科、车前科、茜草科、爵床科、商陆科各1种，均占1．82％。在55种杂草中有阔叶类杂草43种，占78．18％；其他杂草12种，占21．82％。2）马唐、辣子草、铁苋菜、马兰、狗尾草、胜红蓟、旱稗和腺梗豨莶等杂草的相对多度均在10％以上，且不同地区烟田的主要杂草类型存在一定差异，各地区马唐的相对多度均在62％以上，是安顺市烟田杂草的优势种群。
The species and damage status of weeds in tobacco fields were investigated by the fixed spots method to provide a reference for integrated control of weeds in tobacco fields in Ansun City.The results showed that:1)There are 55 species belonging to 25 families,and 13 species in Asteraceae,10 species in Poaceae and 5 species in Polygonaceae accounting for 23.64%,18.18% and 9.1% respectively. 43 species with broad leaf type and 12 other weed species accounting for 78.18% and 21.82% separately:2 ) The relative abundance of Digitaria sanguinalis, Galinsoga parviflora, Acalypha australis, Kalimerisindica,Setariavirdis,Ageratumconyzoides,Chinochloacrusgalli and Siegesbeckia pubescens is over 10% but there is certain difference in main weed types between different areas.D.sanguinalis is the dominant population in tobacco fields because the relative abundance of D.sanguinalis is over 62% in different areas in Anshun City.

[ 可能符合您检索需要的词汇 ]