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- The species richness, diversity and evenness of weed community in maize fields in Zhangjiakou and Chengde were higher than other regions, but the Simpson's index was relatively lower. 张家口和承德地区玉米田杂草群落的物种丰富度、多样性及均匀度较其它地区高,而优势度较低。
- Kyllinga brevifolia + Cyperus rotundus + Cynodon dactylon in Zhaoqing.The weed communities of 32 sample plots could be classified into 5 groups. 肇庆市以水蜈蚣+香附子+狗牙根为主二通过聚类分析可以将32个样点分成5个组。
- Crop rotation system and geographical factors determined the distribution of weed communities in main oilseed rape growing regions in Hubei Province. 轮作制度与地理因素决定了湖北省油菜主产区杂草群落的分布。
- An investigation on weed species biodiversity and host plants of vesicular arbuscular mycorrhiza fungi (VAMF) within weed communities in new developed fruit gardens was conducted. 本研究调查了红壤坡地幼龄果园杂草群落的物种多样性以及主要物种被VA菌根真菌的侵染率和侵染强度,分析了VA菌根真菌侵染与根际土壤磷素水平的关系。
- Urban Weeds are those bully cosmopolitan varieties of both plants and animals that flourish in the edges of the patchwork habitats that people make. 城市赘疣是活跃在人类制造的混杂的栖息地边缘、威胁着全球各种动植物的物种。
- The species composition and seasonal variations of the turf weed communities were investigated in Shenzhen with line intercept method,and all the data obtained were analyzed with cluster analysis. 用样线法调查了深圳市区不同管理类型草坪的杂草周年发生及分布情况,并用系统聚类法分析了各草坪杂草群落的发生规律。
- The results show that no significant difference was observed in composition of weed communities between plots receiving balanced NPK fertilization of organic manure or chemical fertilizer. 结果表明:N、P、K平衡施用时,无论是施用有机肥,或是施用无机化肥,田间杂草的种群组成相似;
- Our community is a leader in the conservation of wildlife. 我们社区在野生动物保护方面走在前头。
- All these indicated that L. radiata obviously changed the composition and structure of weed communities, and effectively controlled the growth of weeds. 说明石蒜改变了杂草的群落结构,有利于限制杂草的发生危害。
- He weed out one by one the book he do not want. 他把不想要的书一本一本丢掉。
- I am out of conceit with the urban life. 我对城市生活已经厌倦了。
- First thing tomorrow I'll weed the garden. 我明天一大早首先去除园内的杂草。
- We have to weed out unqualified applicants. 我们必须淘汰不合格的申请人。
- You can find out many advantages in urban life. 你会发现都市生活中有许多便利之处。
- He worked in community welfare department. 他在社会福利部工作。
- The novel is a searing indictment of urban poverty. 这部小说是对城市贫困的震撼心灵的控诉。
- Here is a local Jewish community. 这是当地犹太人的一个社区。
- A member of a convent or other religious community. 修道院住院修士修道院或其他宗教团体成员
- This play is the image of contemporary urban life. 这个剧本是当代城市生活的生动写照。
- He is ill reputed in the business community. 他在商界名声不好。