查询词典 vegetation

The soil and water loss which corrades easily becomes faster because of high air temperature, precipitation rain fall, violet red and brick red sandstone, undeveloped formation structure, bad fertility and little vegetation, and frequent and irrational human activity, etc.

原因是研究区月平均气温高，雨量充沛，岩石岩性以紫红、砖红色砂砾岩为主，地层构造不发育，土壤肥力差，植被生长困难，再加上人类活动频繁，以及不合理利用土地资源，使本来就易受侵性的土壤流失更迅速。

Acid rain does harm to vegetation and wildlife, etches car finishes, and corrodes buildings and bridges.

酸雨有害于植物的生长和野生动物，蚀刻车子的光泽，以及腐蚀建筑物和桥梁。

He served fire and smoke; these denizens of the fields served vegetation, weather, frost, and sun.

他是负责管理烟火的人；农田上的人负责管理的是农作物、天气、霜冻和太阳。

The land was denuded of vegetation.

这块土地曾是不毛之地。

I dieted myself on vegetation.

我为节食而吃素。

The large area of desert without Vegetation cover is widely distributed in Minqin County and its vicinity, which makes up a region of high temperature and low pressure owing to the desert where significant air pressure gradient is raised with cold high pressure from the west Siberia dispreading towards the south of China.

民勤境内及其周围沙漠广布，且大面积沙漠裸露，易形成以沙漠为中心的高温低压区，与西西伯利亚向东南方向扩散的冷高压形成明显的气压梯度。

In order to disclose the adaptive strategies and capacity of Potaninia mongolica Maxim, acquired during its evolution history, the whole response system, which was composed of individual morphology plasticity response, organs anatomy structure response, physiological function response of anti-arid and anti-hotness, activities of protective enzymes response, endogenous hormone adjustment response, sexual reproduction strategies response of seeding, dispreading, sprouting and renewing, asexual reproduction strategies response of clonal growth patterns, clonal growth architectures, clonal growth architectures plasticity, heterogeneous resources utilization strategies, endogenous hormone distribution in clonal organs, foraging behavior, risk-spreading, and resource sharing, individual density allocation patterns response, niche differentiation response, species connection response, allelopathy response and biodiversity components response of the plant was profoundly explored in this paper.The studies come to at least four important results:(1) Taking the sensitive response and evading strategy to adapt to environment stress, Potaninia mongolica Maxim is a successful species has lived through the long-term evolution. Nevertheless, it is narrow climate and soil niche and characteristic of vegetation reproduction which has made the plant a rare and endangered species.

本论文通过对绵刺环境胁迫下个体形态可塑性响应、器官解剖结构响应、抗旱性和抗热性生理功能响应、保护酶系统激活响应、内源激素调控响应，有性繁殖对策中结实、扩散、萌发、更新等生活史过程响应，无性繁殖对策中克隆生长格局响应、克隆生长构型响应、克隆生长构型可塑性响应、克隆生长构型与资源异质性响应、内源激素调控克隆生长构型响应、克隆器官结构与功能响应、觅食行为响应、风险分摊响应、资源共享响应，种群中格局配置响应、生态位分异响应，群落中种间关联、异株克生响应、生物多样性组成响应等内容进行研究，揭示绵刺在进化过程中的适应对策和适应能力，为绵刺保护提供理论依据。

Except in the higher echelons, extensive classification has no place in the classification of vegetation.

除高阶类级之外，外延分类在植物分类中还是没有地位的。

Ensiling is an anaerobic process involving agricultural vegetation and is carried out at 25~30℃ for 1~2 weeks.

饲料青贮是一种关于农用植物厌氧加工过程，它要在25 30 ℃下进行，时间持续约为1 2周。

The vegetation roots play a very important role in reducing soil erosion by means of being embedded in, entangled in and enwrapped in soil.

植物根系在土壤中穿插、缠绕和网络，与土壤形成了一种天然的复合材料，对防止水土流失具有重要作用。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。