- 更多网络例句与三年生植物相关的网络例句 [注：此内容来源于网络，仅供参考]
-
Flooding,as a kind of disturbance events,occurred with higher and higherfrequency over the world.To investigate the effects of flooding disturbance ongrassland vegetation and the soil,a comparatively thorough study was conducted onAneurolepidium chinense grassland in Songnen plain,Northeast China.The studysite was located in Sanjiadian National Rangeland in the territory of Da'an city,Jilirprovince,which was partly flooded in 1998.On the study site,Several transectssubjected to different flooding durations and intensities were designed for thecomparative study among them on such aspects as vegetation characteristics,seedbanks,vegetative propagation of rhizomatous plants,distribution patterns ofpopulations,interspecific relations,and physio-chemical properties of soil.Theresults were as follows:(1)Of the functional group composition of the vegetation,with the elongation of the flooding duration or the increase of flooding severity,theratio of hygric and hygro-mesic plants increase,while that of mesic and mesoxericplants decrease,of Therophytes changed unimodally,of Geophytes increased,whileof Hemicryptophytes decreased.
为弄清草地植被及其土壤环境对水淹干扰的响应，在松嫩平原羊草草地1998年部分遭受水淹的吉林省大安市三家甸子草场内设置了经历不同水淹干扰持续时间和不同水淹强度的样带，并在这些样带之间从植被特征、种子库特征、根茎植物的营养繁殖性能、种群分布格局、种间关系及土壤的理化性质等多个方面展开对比研究，主要结果如下：(1)在植被的功能群组成中，随干扰强度的增加和水淹干扰持续时间的延长，湿生、湿中生类植物功能群的优势度比例基本上是逐渐增加的，中生、中旱生类植物功能群的优势度比例则逐渐减小，而一年生植物的优势度比例呈单峰型变化，地下芽植物比例增加，地面芽植物比例减小。
- 更多网络解释与三年生植物相关的网络解释 [注：此内容来源于网络，仅供参考]
-
Compositae：菊科
牛蒡(Arctium lappa L.)又名白肌参, 菊科(Compositae)牛蒡属直根系,二年生或多年生大型草本植物. 扎根地下三尺,形似牛尾,汲天地之精华,取日月之灵气,是一种药食两用植物,被卫生部确定为保健食品原料,已被应用在润肠通便、抗疲劳、提高免疫力的健康食品中.
-
triennial：三年生植物 三周年纪念
trienine 三烯菌素 | triennial 三年生植物 三周年纪念 | triennialcropping 三年结实现象
-
triennial：每三年一次的
biennial 二年生植物,二年一次的事 | triennial 每三年一次的 | centennial 百年纪念
-
Eragrostis minor：小畫眉草
作为亚洲中部于旱、半干旱地带草地中一、二年生植物层片和冠芒草同时存在的植物通常有三芒草(Aristida adscensionis小画眉草(Eragrostis minor)、虱子草(Tragus berteroniaus)、蒙古锋芒草(Tragus racemosus)、虎尾草(Chloris vira)、猪毛嵩(