水生植物

Water recycling system Using plants and aquatic animals to aerate, filter and purify water, without adding chemicals.

利用植物和水生动物来供氧、净化水，不添加化学物质。

It is a refereed, broad-spectrum journal publishing basic research in diverse disciplines in biology and varied taxa. The journal publishes papers from major topics:animal, vegetation and plant population in ecology, mammalogy, animal behavior, herpetology, ornithology, aquatic ecology, parasitology, ichthyology, plant physiology and biological statistics.

它发表的文章内容囊括了生物学领域的各门学科的基础研究内容，比如：动物学，植被学，生态植物种群，哺乳动物学，动物行为学，爬虫学，鸟类学，水生生态学，寄生虫学，鱼类学，植物生理学和生物统计学等。

Clone reproduction is signific ant in plant kingdom and has many types, especially in aquatic vascular plants.

克隆繁殖是植物界的一种重要的繁殖方式，具有很大的多样性，特别是水生维管植物更是如此。

The differentiation states of costae indicates the ways they absorb and transport water, and their ability adapting to the dry conditions, which was elucidated by the following examples: Brachythecium plumosum, because of its thin cell-walls in the costae and the absence of hydrome, assistant and steroid cells, can absorb water and nutrition under shady and moist conditions; Plagiomnium rostratum, though often grows in shady and wet condition, has hydrome and steroid cells, a feature similar to those of xeric mosses, which endows it to grow in the conditions with periodical drought stress during its life cycle; Hygrohypnum luridum is characterized by its slender leaves with only one layer of cells, the thin cell-walls, the absence of filaments on the leaf surface, and the fewer layer cells in the costae, the absence of hydrome and steroid cells. These features make it adaptable to aquatic environments. For Pogonatum inflexum and Atrichum undulatum, their ventral surfaces covered with lamella, while for Racomitrium japonicum, Thuidium cymbifolium, Macromitrium ferriei, Diphyscium fulvifolium, Barbula unguiculata and Ceratodon purpureus, their leaves are strongly mammillose or papillos. Such appendiculate structures made them adaptable to thy conditions.

例如，荫湿生环境下的羽枝青藓Brachythecium plumosum，其中肋细胞胞壁较薄，无导水主细胞和副细胞的分化，也没有厚壁细胞分化，能够在阴湿环境下吸收水分和养分；钝叶匍灯藓Plagiomnium rostratum具有与旱生藓类植物相似的中肋结构，叶片较厚，中肋具导水主细胞，中肋背面具厚壁细胞，这些特点使该种藓类植物能够分布于间隙性干旱胁迫的环境中；水灰藓Hygrohypnum luridum叶片纤细柔弱，仅1层细胞，细胞胞壁薄，叶表无附属结构，中肋细胞层数少，无导水主细胞分化，也没有厚壁细胞，这些特点使得水灰藓'能够生长在水生环境中；东亚小金发藓Pogonatum inflerum和波叶仙鹤藓Atrichum undulatum的叶腹面覆盖着栉片，东亚砂藓Racomitrium japonicum、大羽藓Thuidium cymbifolium、福氏蓑藓Macromitrium ferriei、东亚短颈藓Diphyscium fuhifolium、扭口藓Barbula unguiculata和角齿藓Ceratodon purpureus的叶片表面有乳头状突起或疣状物，这些附属结构使它们能够适应于旱生的环境中。

Followed successively by Bacillariophyta, with 31 species of 18 genera, taking up 19.38%; Euglenaphyta, with 15 species of 3 genera; Cyanophyta, with 7 species of 4 genera; Cryptophyta, with 3 species of 2 genera; Pyrrophyta and Chrysophyta, with 2 species 2 genera; Xanthophyta, with 1 species 1 genera.

浮游植物是水生态系统中的初级生产者，是水生生物群落结构中的重要组成部分，是水环境质量的重要指示生物，浮游植物的种类组成和数量变动都可以反映水质变化的情况。

One of four subclasses or superorders of Monocotyledones; comprises about 500 species in 14 families of aquatic and semi-aquatic herbs.

单子叶植物纲的四个亚纲或总目之一；包含14个属中500个种类的水生或半水生草类。

An aquatic plant of the genus Naias.

水生或半水生的植物的一个小属。

According to the aquatic ecosystem investigations in October of 2003 and April of 2004, the composition and quantity of phytoplanktons after impounding of the Three Gorges Reservoir were studied. We discussed the influence of water dynamics condition, water nutrient level on the phytoplankton components and quantity.

根据2003年10月和2004年4月的水生生物调查，对三峡库区二期蓄水后的浮游植物组成与分布变化进行研究，探讨水力学与营养盐条件变化对库区浮游植物结构与数量的影响。

It is found that (1) the aquatic protozoa communities consists of thirty-six taxa in twenty-six genera and twenty-four families;(2) the groups of ecological function include: Photosynthetic autotrophs (P groups, 25%), Bactivores detritivores (B groups, 44.44%), Saprotrophs (S groups, 2.78%), Algivores (A groups, 11.11%), Nonselective omnivores (N groups, 11.11%) and Raptors (R groups, 5.56%);(3) according to the characteristics of karst water, substrates and mosses, four ecological types and eight sub-types of aquatic protozoa communities can be distinguished.

2水生原生动物群落含6个功能营养群。其中，原生动物光合营养群（P群，Photosynthetic autotrophs），占总数的25%；细菌取食者群（B群，Bactivores detritivores），占总数的44.44%；腐生营养类群（S群，Saprotrophs，占总数的2.78%；食藻者类群（A群，Algivores），占总数的11.11%；非选择性杂食者群（N群，Nonselective omnivores），占总数的11.11%；食肉者群，占总数的5.56%。(3)根据岩溶水流、基质和藓类植物特征，划分该区附生水生原生动物生态群落为4个类型和8个亚类型。

Small genus of aquatic or semiaquatic plants.

水生或半水生的植物的一个小属。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。