1) community
[英][kə'mju:nəti] [美][kə'mjunətɪ]
草群
1.
Based on two years cutting treatments,some changes on the growth status of community,Stipa baicalensis and Leymus chinensis were observed in middle September,1999.
在连续 2a处理的基础上 ,于 1999年秋集中观察了草群、羊草和贝加尔针茅生长状况的变化。
2.
The cutting treatments were repeated in 1999 on the base of last year s design and treatments to observe the accumulated effects on the heights of community, Stipa baicalensis, Leymus chinensis and plant numbers of Leymus chinensis in unit area and Stipa baicalensis per bunch.
在上年处理的基础上 ,于 1999年进行重复处理 ,观察贝加尔针茅草原草群、羊草和贝加尔针茅高度、单位面积羊草植株数量及平均每丛贝加尔针茅植株数量变化的累加效应 ,结果表明 ,连续两年重复处理之后 ,累加效应显著。
2) Leymus chinensis population
羊草种群
1.
Effect of restorative measures on quantitative characters of reproduction for Leymus chinensis population in the degenerated grassland;
恢复措施对退化草地羊草种群有性生殖数量特征的影响
2.
Biomass allocation of Leymus chinensis population: A dynamic simulation study.;
羊草种群生物量分配动态模拟
3.
Age structure of Leymus chinensis population modules in different habitats of Zhalong Nature Reserve;
扎龙自然保护区不同生境条件下羊草种群构件的年龄结构
4) aquatic macrophyte community
水草群落
5) weed community
杂草群落
1.
Effect of protective cultivation on weed community composition and species diversity
保护性耕作对农田杂草群落组成及物种多样性的影响
2.
Four weed community groups were divided in 31 sites, one of which was obtained with almost all soybean (com) stubble rape field sites dominated with Galium apalium, and three gro.
利用７ 级目测法调查了南京地区油菜田３１ 个样点的杂草优势度级，并以其重要值为指标，对３１ 个样点的杂草群落进行计算机模拟聚类分析。
3.
Digitaria sanguinalis+Acalypha australis+Cephalanoplos segetum+Setaria viridis weed community distributed in the cotton fields with the successive .
采用杂草群落和草害的数量研究方法，对江苏省沿海地区棉田杂草草害和群落的发生及分布规律进行了定量调查研究。
6) weed population
杂草种群
1.
Important values of 20 weed populations belong to 19 genera,8 families in wheat fields of Nanjing City and Chuzhou City were investigated,and the principal component analysis (PCA) of main weed populations were conducted.
对江苏省南京市和安徽省滁州市麦田杂草群落进行了调查,测定了隶属8科19属的20种杂草的重要值,并用主成分分析的方法,研究了主要杂草种群在群落中的地位。
补充资料：陪群公登箕山赋得群字
【诗文】：
许由去已远，冥莫见幽坟。世薄人不贵，兹山唯白云。
宁知三千岁，复有尧为君。时佐激颓俗，登箕挹清芬。
高节虽旦暮，邈与洪崖群。
【注释】：
【出处】：
全唐诗：卷882-9
许由去已远，冥莫见幽坟。世薄人不贵，兹山唯白云。
宁知三千岁，复有尧为君。时佐激颓俗，登箕挹清芬。
高节虽旦暮，邈与洪崖群。
【注释】：
【出处】：
全唐诗：卷882-9
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条