查询词典 vegetation

Because more light penetrates the canopy, however, the vegetation of the understory and forest floor is better developed than in the tropics.

本题考查的知识点是：段落内一致性原则+上下文的衔接本题空格出现在第一段中。

Wild animals and vegetation, especially animals living in a natural,undomesticated state.

野生生物野生的动物和植物，尤指生长在天然和未驯化状态中的动物

Wild animals and vegetation, especially animals living in a natural, undomesticated state.

野生生物：野生的动物和植物，尤指生长在天然和未驯化状态中的动物

The results showed that vegetation coverage and biomass of enclosed desert grassland increased by 272%～536% and 44\^39%～305\^5% respectively compared to those of unenclosed desert grassland under the similar environments.

植被的恢复使土壤理化性质发生了变化，与封育前相比土壤中有机质、全N、速效K以及细砂、特别细砂和粘粒含量显著增加；速效N、速效P降低。

When the ground was partially bare of snow, and a few warm days had dried its surface somewhat, it was pleasant to compare the first tender signs of the infant year just peeping forth with the stately beauty of the withered vegetation which had withstood the winter —— life-everlasting, goldenrods, pinweeds, and graceful wild grasses, more obvious and interesting frequently than in summer even, as if their beauty was not ripe till then; even cotton-grass,cat-tails, mulleins, johnswort, hard-hack, meadow-sweet, and other strong-stemmed plants, those unexhausted granaries which entertain the earliest birds —— decent weeds, at least, which widowed Nature wears.

土地上有一部分已没有了积雪，一连几个温暖的日子把它的表面晒得相当的干燥了，这时的赏心悦目之事是用这新生之年的婴孩期中各种初生的柔和的现象，来同那些熬过了冬天的一些苍老的植物的高尚的美比较，——长生草，黄色紫苑，针刺草和别种高雅的野草，往往在这时比它们在夏季里更加鲜明，更加有味，好像它们的美非得熬过了冬才到达成熟时期似的：甚至棉花草，猫尾草，毛蕊花，狗尾草，绣线草，草原细草，以及其他有强壮草茎的植物，这些都是早春的飞鸟之无穷的谷仓，——至少是像像样样的杂草，它们是大自然过冬的点缀。

For year round unfenced grazing land,the total above ground biomass,overall vegetation coverage,and average plant height were all lower than for fenced land.

在全年放牧草地中，地上总生物量、植被总覆盖度、植被平均高度等指标均低于围栏内的草地。

Tigers seem to thrive in areas of dense vegetation with numerous sources of water and large populations of ungulate prey.

它们似乎能在水源和食物来源丰富的密林地带茁壮成长。

The analysis results for community species component and plant diversity showed that exclusion did change the species component and increase plant diversity remarkably, while the indicateor life-form structure, palatability analysis indicated that community for old exclusion is becoming perennity and unpalatability, whereas community for comparative exclusion is under stable non-equilibrium condition, in the view of vegetation coverage, mean height, biomass, palatability of plant composition, community for old exclusion has lower than new, comparative exclusion which proves partly that long-term exclusion can not increase grazing values for semi-arid rangeland.

对3种封育措施群落组成和生物多样性的分析结果表明，封育改变了群落的组成成分并增加了生物多样性，同时对群落植物的生活型、饲用价值分析计算结果则显示，老封育的群落植物逐渐向多年生发展，放牧价值开始降低，而对照区则明显处于一种非平衡的稳定状态。从3种措施植被的盖度、高度、生物量和饲用价值来看，老封育区均低于新封育区和对照区，表明长期封育不利于促进并提高草场的放牧利用价值。

Although much effort has been exerted to set up artificial vegetation coverage since the establishment of the People's Republic of China, the trend of desertification and soil loss is still unreversed.

建国后虽然进行了较大规模的人工林草植被建设以及以小流域为单元的综合治理，但水土流失和土地退化总的趋势并没有得到扭转，而且人工林草植被造成土壤干燥化，进一步加剧了生态环境的脆弱性。

According to the sensitivities of variance coefficients and relative range of soil properties, we found that nitrate, available phosphorus, labile organic matter, urase, invertase, and organic matter can be used as the assessing index, which can evaluate soil quality under various re-vegetation ecosystems in the Loess Plateau.

根据变异系数和相对极差的敏感性发现在定量评价黄土高原不同植被恢复生态系统土壤质量时，可选择硝态氮、速效磷、活性有机质、脲酶、蔗糖酶和有机质等极敏感和高度敏感土壤性质作为评价指标。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。