青冈林植物区系成分复杂，具有较高的热带成分比例。
The community has a high diversity of family, genus and species, and a great variety of plants whose composition is complex.
植物区系成分的研究，为合理开发、利用、保护当地植物资源，开展科学引种提供了充分的依据。
The study of floristic element has supplied sufficient basis for developing, utilizing and preventing the local plant resources, as well as developing plant introduction from other basin or areas.
中生代，广东植物区系成分发生了很大的变化，裸子植物大量繁盛，但总体上是在本区晚古生代华夏植物区系的基础上演化而来的。
In Mesozoic, Guangdong flora had a big change, the gymnosperm was prosperous, but it was evolved from the late Paleozoic Cathaysian flora as a whole.
植被的植物区系组成明显以热带成分为主，其中有些属与近代典型热带草原有联系。
The floristic component of Yuanmou vegetation distinctly consists of the large part of tropical elements, in which some genera connect to the current typical savannas.
在区系成分中存在较多中国-喜马拉雅成分，表明了该区系具有明显的高原及高山植物区系的特色。
Owing to the elements in the flora are mainly of Sino-Himalayan ones, so the flora is obviously with plateau and alpine floristic features.
干暖河谷的特有区系成分和各级植物区系标志种均较好地反映本河谷区系演化的近代趋势及其独特性。
The endemic elements and the character elements are all the better to be reflect the evolutional tendency of tropical flora and the unique flora in these valleys.
应用稳健主成分分析研究欧亚大陆早侏罗世植物区系划分尚属首次试验。
This is the first time to use the Robust principal component analysis method in studying the early Jurassic floristic division of Eurasia continent.
属的这种分布格局，显示出该区蕨类植物区系从热带成分向亚热带成分的渗透和过渡。
The above distribution pattern reveals the transitiveness of the elements from tropical to subtropical.
本文介绍了应用数值分析的某些方法和原理进行植物区系基本成分统计、地理成分划分及其分区。
This paper introduces some methods and principles of the numerical analysis that has been used for the statistics of basic elements, division of geographical elements and regionalization of flora.
对广西蕨类植物区系的组成、特征、区系地理成分作了详细阐述。
The taxon numbers, characteristics and distribution types of Guangxi pteridophyte flora are discussed in present paper.
大岗山植物区系是典型的亚热带植物区系，有由热带成分向温带成分过渡的特点，成为许多热带性属的分布北界。
The study indicates that the Dagangshan has a typical subtropical flora and is characteristic of floristic transition from tropical to temperate composition.
大熊猫分布区的植物区系起源古老，成分复杂。
The origin of flora is ancient in the distribution area of the giant panda and its elements are complicated.
在各类植物区系地理成分中，世界分布属占有绝对优势，说明该湿地植物区系具有非地带性特征；
Among various geographical elements, the world distribution has an absolute advantage in indicating the wetland flora with non-zonal features;
在各类植物区系地理成分中，世界分布属占有绝对优势，说明该湿地植物区系具有非地带性特征；
Among various geographical elements, the world distribution has an absolute advantage in indicating the wetland flora with non-zonal features;
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