Flora Crockett Stephenson (1914–1979): A life and professional partnership in planning

This article contributes to the growing literature on women's contributions to planning, especially in the UK, the USA, and Australia, and to research into the phenomenon of life partners who work together professionally. The subject is Flora Crockett Stephenson (1914–1979), the first woman to complete the Master in City Planning degree at the Massachusetts Institute of Technology. Presented as a biographical exposé, the discussion introduces Flora's background and reveals her largely unrecorded contributions as the life and professional partner of British architect-planner Gordon Stephenson (1908–1997), already the subject of several academic studies.     

Assessing the Floristic Diversity of Hedge Networks: A landscape perspective

The type of land cover adjacent to hedges has been shown to influence the species composition of the ground flora. An assessment of the contribution of hedge networks to the biodiversity of landscapes therefore requires information on the relative lengths of hedge associated with different land covers. In the River Tyne catchment, Northern England, the association between hedges and land cover types differed between four landscapes. Overall, the greatest length of hedge was adjacent to arable crops, improved grasslands and roads. Hedges next to improved grassland and roads were the most species-rich, while those adjacent to arable crops were the least species-rich. Species which were common adjacent to arable crops were also common adjacent to other land covers. Hedges adjacent to improved grassland, roads and semi-natural broadleaved woodland supported species which were not common elsewhere in the hedge network. It was also found that hedges with different land cover on each side supported different floras on each side. When planning landscape-scale surveys of hedge biodiversity, it is important to survey both sides of hedges, and sampling should be stratified to include hedges adjacent to the different types of land cover present.     

水与绿的另类展演舞台——2010台北花博大佳河滨公园设计

2010台北国际花卉博览会是中国台湾第一次举办世界级的博览会；对于这个可促进观光产业发展、岛内花卉与园艺产业成长的机会,应该如何去面对与思考?博览会结束后,除了经济上的效益之外,民众是否藉由这次活动学习到如何爱护我们的环境,与珍惜我们的资源?这些都是在设计过程中不断思索的重点.     

安徽省烟田杂草的分布与危害

采用目测法对安徽省主要烟区烟田杂草进行了调查,取样地共62.48hm2。结果查明全省烟田杂草计有42科,94属,122种。根据对每种杂草的优势度和频度的评价,最主要的杂草17种,包括稗草、马唐、墨旱莲、碎米莎草、铁觅菜、香附子和狗尾草等。结果还表明,本省三大自然烟区杂草区系成分和主要杂草群落及草害各有其特点,江南烟区主要杂草为酸模叶寥、碎米莎草、稗草、石胡荽和异型莎草等16种;江淮之间丘陵烟区主要有稗草、墨旱莲、鸭跖草、粟米草、马齿觅和马松子等11种;淮北平原烟区主要杂草是铁定菜、觅属、斑地锦、香附子、马唐、狗尾草等15种。据此,提出了杂草综合防治措施。      

吐鲁番盆地桃树园剖面三叠系与侏罗系生物地层界线

通过研究吐鲁番盆地桃树园剖面八道湾组下部的孢粉、植物化石,确认层５～８含有孢粉Ａｒａｔｒｉｓｐｏｒｉｔｅｓ,ｐａｒａｔａｅｎｉａｅｓｐｏｒｉｔｅｓ,Ｔａｅｎｉａｅｓｐｏｒｉｔｅｓ等三叠纪的重要分子,同层共生植物有Ｃｌａｔｈｒｏｐｔｅｒｉｓｐｌａｔｙｐｈｙｌａ晚三叠世常见分子;层９出现了孢粉Ｃｙａｔｈｉｄｉｔｅｓｍｉｎｏｒ,Ｃｌａｓｏｐｏｌｉｓａｎｎｕｌａｔｕｓ,Ｑｕａｄｒａｅｃｕｌｉｎａａｎｅｌａｅｆｏｒｍｉｓ等侏罗纪常见分子,同层产有植物Ｐｉｔｙｏｐｈｙｌｕｍｌｏｎｇｉｆｏｌｉｕｍ和Ｂａｉｅｒａｃｆ．ｇｒａｃｉｌｉｓ等具侏罗纪特征的分子。因此认为桃树园剖面三叠系与侏罗系的生物地层界线应划在八道湾组下部的层８与层９之间,在这一界线上下的孢粉植物群主要特征既具有明显的区别,又具有承前启后的连续性和过渡性。该剖面三叠系与侏罗系的生物地层界线距离郝家沟组与八道湾组的岩石地层界线为３０９５ｍ     

烟草VA菌根菌区系研究

从全国主要烟区12个省采集烟草根际土壤样本,以湿筛法分离出VA菌根菌的孢子。经接种烟草再次形成菌根并产生孢子后,用单一的新鲜孢子进行种的鉴定。由101份土样中分离出VA菌根菌294株。经过鉴定,定出种名的共33种,其中无梗囊霉属(Acaulospora)6种,巨孢囊霉属(Cdgaspora)3种,球囊霉属(Glomus)23种,盾孢囊霉属(Scutellospora)1种;有13种为国内新记录种。分析表明,在上述已鉴定的4个属中,球囊霉属分布最广;在33个种中,分布较广的有：A．laevis Gl.caledonium、Gl.caledonium、Gl.claroidum、Gl.clarum、Gl.diaphanum、Gl.etunicatum,、Gl.leptotichum 和Gl.mosseae。菌种的分布因土壤类型,土壤酸碱度和海拔高度而有一定差异。     

Effects of water quality on mangroves in an urban lake system

This study assessed the extent of anthropogenic stresses on two mangrove species (Sonneratia caseolaris and Cerbera odollam) in a tropical coastal lake system. An anaerobic factor, organic pollution and salt factors were identified as being responsible for the risks to mangroves. A flora risk tolerance index was developed to ascertain the spatial and temporal risk of plants to water pollution. This study revealed the risk to the Cerbera odollam species is high, compared to Sonneratia caseolaris. Further, the flora risk tolerance index is a good index for assessing the risks to the mangrove species.     

高通量测序技术对杀菌型益生菌含乳饮料菌群结构分析

目的：探查杀菌型益生菌含乳饮料中微生物菌群组成分析，及宣称的添加益生菌真实性和合规性分析。方法：对市售11批次产品直接提取的细菌总核酸，扩增，电泳检测核酸的质量；分别对产品的16S rRNA基因V3/V4进行高通量测序技术（NGS）测序，对测序序列、稀释曲线、Alpha多样性、聚类、丰度分布曲线与菌群结构分析，获得信息与产品明示值和相关规范对比进行合规性分析。结果：共得到39231条优质序列，分布在210-518bp范围内；共注解到16个门、37个纲、71个目、129个科、265个属；从门分类水平主要为厚壁菌门( Firmicutes 91.66 %) ，从纲的分类水平主要为芽孢杆菌纲( Bacill 90.43 %)，从目的分类水平主要为为乳杆菌目(Lactobacillales 82.74 %) ；优势菌种为德氏乳杆菌保加利亚亚种、嗜热链球和乳酸乳球菌；同时产品有检出携带致病性非益生菌菌群。部分产品标示菌种未被检出、部分产品检出了未标示菌种、部分产品检出益生菌与标示菌种不一致。结论：本文建立的NGS测序技术能准确、快速的对杀菌型益生菌食品微生物菌群精确筛选，市售产品益生菌种类丰富，但同质化程度较高，产品间菌群分布均匀度相差较大；同时也能深度挖掘到微量的携带致病性的菌群。     

James Flora插图作品的启示

20世纪40～50年代,设计师James Flora为哥伦比亚唱片公司等设计封面插图而有名,他的作品色调对比鲜明,造型简练而活泼,风格古朴且颇具情调,他的作品对现代插图插画风格产生了一定的影响。在插图生存空间日益拓展的今天,插图形式也越来越多样化。但是插图所具有的普遍的艺术审美是不变的,它的功用是广泛的。优秀的插图作品在任何时候都会给我们带来一定的影响和借鉴作用。     

塔里木盆地南部早二叠世孢粉组合及植物区系

塔里木盆地南部早二叠世孢粉植物群可分为Striolatospora-Qipanapollis(SQ)组合和Potonieisporites-Vestigisporites(PV)组合,时代为早二叠世早、中期.对孢粉植物群特征的分析表明,在早二叠世早、中期,属于欧美植物群范畴,并非以往所认为的属于华夏植物群,也未发生所谓的四大植物区系的混生现象.对塔里木地块当时古地理位置的讨论结果亦支持这一结论.