查询词典 vegetation

Based on the field survey, data collection and statistics of tree resources in the typical plant community and the natural vegetation abundant areas in Shennongjia nature reserve, Wudangshan nature reserve, Xingdoushan nature reserve, Jiugongshan nature reserve, Tiantangzhai forest park, and the landscape trees resource, growth effects and the application situation in the selected typical cities of Wuhan, Yichang, Shiyan, Xiangfan, Enshi, Huangshi, Xiantao, Daye, Xianning etc., and combined with the planning of city system of Hubei Province, the trends and further requirements of urban greenings and the natural vegetation distribution of Hubei Province, this research, aiming at providing the data and scientific bases for the further development and construction of urban green system, undertook the zoning and planning of tree species of the cities of Hubei Province.

本研究在对湖北省神农架自然保护区、武当山自然保护区、星斗山自然保护区、九宫山自然保护区、天堂寨森林公园等天然植被荟萃的典型区域进行树种资源和典型群落实地调查、资料收集和对我省武汉、宜昌、十堰、襄樊、恩施、黄石、仙桃、大冶、咸宁等代表性的城市市区内的园林树种的种类、应用状况、生长效果等方面进行了实地调查和统计分析的基础上，结合湖北省城市体系规划、城市园林绿化发展的趋势、要求和各地植被规律等特点，对湖北省城市园林树种进行了区划和树种规划，以期为湖北省城市绿地的进一步建设和发展提供资料和科学依据。

According to the charecteristice of soil-seed bank and overground vegetation in the natural recovering section and water-using section, the structure charecteristic of surrive natural secondary-forest and the problems existing in existence artificial forest, the strategy of building plant community for the vegetation recovering in hot-dry valley was pot forward.

根据系统中自然恢复斑块、水分利用斑块经水平阶整地的阶间坡面土壤种子库和地上植被特征、残存天然次生林的结构特点和现有人工林存在的问题提出干热河谷植被恢复中植物群落的构建策略。

The result shows that when vegetation exists in channel, flow structure is more complex, with abundant whirlpools signifying violent turbulence. And as the decrease of vegetation rigidity, flow field intends to be stable.

结果表明：水槽中有植被存在时，流场结构较为复杂，充满大量的漩涡，紊动强烈；随着植被刚度的减小，流场结构慢慢趋向稳定。

Based on the introduction of severals kinds of vegetation s which can purify atmoshpere efficiently,indoor vegetation plantation is rewmmended.

文章叙述了在城市绿化中选择净化空气的植物配植的方法、原则，介绍了几种对大气污染吸收净化能力强的植物种类，和室内选择净化空气的花草。

FLORA facing Botanists, ecologists, ecophysiologists, specialists in vegetation science, vegetation ecology, plant geography, conservation biology, plant morphologists publishes papers dealing with plant structure, plant distribution and plant functional ecology (ecophysiology, population ecology, ecosystem ecology).

植物》面对植物学家、生态学者、生态生理学者、植物学、植物生态学、植物地理学、生态保持专家和植物形态学者，出版关于植物结构，植物分配和植物功能生态学（生理生态、人口生态、生态系统）的论文。同时也出版相关于分类学种类或植物种类和植被学的论文。

4The low similarities betweenseed banks and the established vegetation were considered to be the consequences ofthe frequent presence in the established vegetation but not in seed banks of someperennial rhizomatous plants which mainly depended on vegetative propagation toregenerate;insignificant difference in the species composition of seed barks amongtransects, might be accounted for by the fact that the flood drift had functioned as adisseminator for propagules;and with the intensifying of the flooding disturbance,both species diversity and the similarity between seed banks and establishedvegetations declined.

4种子库与地上植被相似性普遍较低，其原因是主要靠营养繁殖以更新种群的多年生根茎植物经常在植被中出现而不在种子库中出现；受水淹干扰的样带之间种子库的种类组成差异不大，说明洪水漂移行使了繁殖体传播和散布的功能；随水淹干扰强度增加，种子库物种多样性指数减小，种子库与地上植被的物种组成相似性下降。

A survey of the Dahe Bay vegetation in Jin-ping cascade hydropower station setting along the river stream in Sichuan province, China, was performed. A total of 132 plant species and 4 environmental factors in 50 sample quadrats were recorded. Assemblages of Jin-ping Dahe Bay were classified using two-way indicator species analysis, ordinating by detrended correspondence analysis. Seven vegetation assemblages were divided by TWINSPAN classification, in which Pouzolzia elegans shrub grassland was the dominant community in this area.

以锦屏梯级水电站大河湾段植被为研究对象，以河流流向为基础布置样方，将50个样方物种重要值及其环境因子进行TWINSPAN数量分类和DCA排序，结果显示：（1）由TWINSPAN数量分类将植被划分为7种类型，雅致雾水葛灌草群落为该区域的主要群落。

Planted vegetation, especially more than 20 years old planted trees and planted grasses consumed much more soil water than vegetation in natural restoration, and the soil water content in 200-500cm soil layers was almost near to wilting point.

相比之下，人工植被消耗大量的深层土壤水分，特别是20年龄以上的人工林地及人工草地，其200~500cm土层的土壤含水量几乎接近凋萎湿度。

It is analyzed that the impacts of vegetation type on shear strength of unsaturated soil through direct shearing tests for unsaturated soil of different depth and various vegetation types which consist of bare soil, tanglehead grassplot, switch sorrel shrubbery and eucalyptus holt under natural moisture contents.

中文摘要：通过对裸地、扭黄茅草地、车桑子灌木林地和桉树林地四种不同植被类型、不同深度土壤在天然含水量情况下的直剪试验，研究了植被类型对非饱和土抗剪强度的影响。

In winter, snow accumulates and melts fast in spring. Snowmelt flood and a summer flood display a double peak pattern of discharge route. In order to simulate the precipitation-runoff features in semi-arid regions, an Atmosphere-Vegetation Interaction model with detailed energy and water transfer processes between atmosphere, vegetation and soil was used.

由于这些特点，在地表水量平衡的计算和模拟中，蒸发的估算十分重要，为此在植被-大气相互作用模式中对水文过程作了改进，模式中包含了大气-植被-土壤间的能量和水分传输过程，特别是半干旱区地表蒸发和植被的蒸腾过程作了比较细致的处理，考虑了蓄满和超渗两种产流机制，同时采用了一个简化的雪盖模型。

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。