植物群系

具体表现在：（1）土壤表层（0-30cm）的机械组成对植物群系的影响显著。

The mechanical composition of the soil surface ( 0-30cm ) a significant impact on the plant formations .

三峡库区有144个植物群系，6388种高等植物，3418种昆虫，500种陆生脊椎动物。

For the Three Gorges reservoir area , there are 144 vegetation types , 6388 high plant species , 3418 insect species , and 500 terrestrial vertebrate species .

在该保护区中按照植物群系及海拔高度共设20个采样点，太统山蔷薇灌丛为物种数最多的样点，共鉴定到62种土壤纤毛虫，隶属于3纲8目22科26属。

There were 62 species in shrub rose which had the most species in all samples , which belonged to 26 genera of 22 families from 8 orders of 3 classes .

其中36个植物群系受到部分或全部淹没影响，4种地方特有植物的野生种群遭到淹没（1种全淹，3种部分淹没）。水文情势改变是影响水生生物的主要因素。

The reservoir inundation and resettlement are major factors affecting terrestrial life , in which 36 vegetation types will be affected and four endemic plant species will be submerged ( one species range fully submerged and three species partly ) .

哀牢山植被分8个植被型，19个植物群系，36个植物群落。

The features of the vegetation in Ailao mountain are complex in structure , transitive in nature , varied in formation and integrated in vertical vegetation spectrum . The vegetation of Ailao mountain can be devided into 8 vegetation types , 19 formations and 36 communities .

高山的：描述在高山雪线以下的植物生物群系。

Alpine Describing a BIOME ( regional community ) of plants above the treeline and below the snowline on high mountains .

4种除草剂对麦田禾本科杂草药效比较草原：以禾本科草类（禾本科）为优势物种的植物群落（生物群系）。

Effect Tests of Herbicides Against Grass weeds in Greenhouse Grassland A major world plant community ( biome ) dominated by grasses ( Poaceae ) .

草禾本科植物的总称草原：以禾本科草类（禾本科）为优势物种的植物群落（生物群系）。

The members of the grass family considered as a group . Grassland A major world plant community ( biome ) dominated by grasses ( Poaceae ) .