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<正> 由广西植物研究所承担完成的广西区科委委托的国家重点项目《全国海岛资源综合调查》中的“广西海岛资源综合调查——植被、林业资源调查”,根据“全国海岛资源综合调查简明规程”第七编的要求,用了近三年的时间。对广西海岛的植被和林业资源进行了全面的调查研究,查清了广西海岛现有的森林资源的数量和质量,以及森林、植被分布规律,对海岛森林植被现状特点和防护林规划布局上存在的问题及林业发展潜力进行了全面系统分析和正确评价,在此基础上撰写了近16万字的两个调查报告和5万字的3个专题研 相似文献
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背景介绍
在日本,医药品、医疗器械批准审查的实际业务由独立行政法人医药品医疗器械综合机构（PMDA）实施。由于医药品、医疗器械带有与人的生命直接相关的危险．因此从全世界来说,医药品及医疗器械在上市前必须要经过官方的认证。PMDA是相当于美国的食品药品监督管理局（FDA）和欧洲医药品管理局（EMEA）的机构。 相似文献
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José R. PIRANI 《植物分类学报》2009,47(5):477-496
Molecular phylogenetic studies have become a major area of interest in plant systematics, and their impacts on historical biogeographic hypotheses are not to be disregarded. In Brazil, most historical biogeographic studies have relied on animal phylogenies, whereas plant biogeographic studies have largely lacked a phylogenetic component, having a limited utility for historical biogeography. That country, however, is of great importance for most biogeographic studies of lowland tropical South America, and it includes areas from a number of biogeographic regions of the continent. Important biogeographic reports have been published as part of phylogenetic studies, taxonomic monographs, and regional accounts for small areas or phytogeographic domains, but the available information is subsequently scattered and sometimes hard to find. In this paper we review some relevant angiosperm biogeographic studies in Brazil. Initially we briefly discuss the importance of other continents as source areas for the South American flora. Then we present a subdivision of Brazil into phytogeographic domains, and we cite studies that have explored the detection of biogeographic units （areas of endemism） and how they are historically related among those domains. Examples of plant taxa that could be used to test some biogeographic hypotheses are provided throughout, as well as taxa that exemplify several patterns of endemism and disjunction in the Brazilian angiosperm flora. 相似文献