herbages

与herbages相关的网络例句 [注：此内容来源于网络，仅供参考]

Pubescens community and mixed plant species belonged to 56 families, 85 genera, 122 species. The layers of arbors, shrubs, liane, and herbages could be distinguished clearly. The community of Jiulian Mountain Nature Reserve in Jiangxi Province had the highest diversity indices of tree layer in four T. ciliata var. pubescens forest communities, the least was community in Changgang, Longquan of Zhejiang Province. The community of Changgang had the highest index evenness, the least was in Jiulong Mountain of Zhejiang Province. The importance value of T. ciliata var.

研究结果表明：毛红椿天然林群落的物种多样性丰富，与毛红椿混生的植物种类有56科85属122种，而且层次性较强，分为乔木层、灌木层、藤本层和草本层4层。4个毛红椿天然林群落乔木层中，江西九连山群落Simpson多样性指数最高，浙江龙泉昌岗毛红椿群落为最低；浙江龙泉昌岗群落的均匀度指数最高，浙江九龙山群落为最低。

Defoliations have most species and high individual density, with jarless community structure; shrubs have high evenness with less jarless community structure; herbages have less species and individual density, with predominant species conspicuous.

在自然生态系统中蜘蛛种类多，种群数量大，全是掠食性的，且捕食的对象极大部分是害虫，因此蜘蛛是一类重要的害虫天敌，在生物防治尤其是林业害虫防治方面具有重要作用(宋大祥等，2001)。

A modified method of paraffin slice is used for the comparative study on the seed shell compositions of two excellent leguminous herbages Onobrychis viciaefolia Scop.

采用改进的石蜡切片方法，对两种优良豆科牧草———红豆草和扁蓿豆种子的种皮结构及成分进行对比研究。

Sabaigrass is a kind of herbages plant with excellent exploitation value, most of which is wild.

龙须草是一种极具经济效应和生态效应的纤维草本植物，多为野生。

In silvicultural regeneration treatment,the diversity of shrubs and herbages increases gradually in stage A1～A3,and the variation will continue after stage A3,further work is needed to examine the dynamic.

群落多样性是指生物群落在组成、结构、功能和动态等方面的多样化，是生物多样性各个层次中研究得最早的一个层次，其研究内容主要侧重于群落的物种组成和结构的多样性[1]。