查询词典 vegetation

Here the former function of the building as a flower pavilion is somewhat re-incarnated; instead of housing the flowers, the new building affords the visitors a view of the Park's lush vegetation from its galleries, café, and sun deck.

在此，原&花卉馆&的功能得到了再生。人们不再来看馆里的花，而是从这里向外看到所有公园里的花草。

Such vegetation protects the soil better than row crops, but corrugations are too small to carry large streams of water.

和行播作物相比，这种植被能更好地保护土壤。但是，垄沟太小，不能输送较大的流量。

The role that a soil seed bank plays in vegetation regeneration is discussed.

土壤种子库时期是植物种群生活史的一个重要阶段。

Soil seed bank and the mechanism of seed germination are basic for the natural vegetation restoration in the research area.

植被进展演替促进了沙漠化过程的逆转，研究区植物的土壤种子库及其萌发机制为天然植被的恢复提供了可能。

Low similarities were observed between soil seed bank and standing vegetation, and between the seed banks at different sites.

排土地上植被与土壤种子库物种组成的相似性较低。

It is not only connected with carbondioxide output of bio-body and also with maintenance in soil carbon bank. It is a fundamental basis of function and process and takes a guiding role in terrestrial vegetation carbon bank.

森林生物量不仅联系着生物CO〓的排放量，而且维持着土壤碳库的贮存，是生态系统功能、过程的重要基础，它在陆地植被的碳库中起着主导作用。

We consider suburban areas in terms of population density and of apparent spectral reflectance using Landsat data and quantify the relationship between the two variables. We also compare these results with the USGS National Land Cover Dataset (National Land Cover Characterization, 2001). We selected the Low Intensity Residential, High Intensity Residential and Commercial/Industrial/Transportation classes and crossreferenced the areal extents for these classes with vegetation fractions and urban classification estimates for the six cities included in this study.

我们从人口密度方面和利用美国地球资源探测卫星数据的表现光谱反射比与确定两变量间的关系来考虑郊区，另外，为了对该研究中的六个城市做出评价，我们将这些探测研究结果与美国地质勘探局的国家地表的一套数据(2001国家地表特点)相比，收集低密度住宅，高密度住宅，商业工业运输的分类，通过植被区与城市分类交叉引用这些来自同一地区的廷区。

Land cover changed a lot through the Weijing and Tang Dynasties, especially in Ming and Qing Dynasties, resulting in a series of changes such as shrinkage of lakes, river re-channeling, oasis movement, and loss of vegetation due to dessication.

土地覆盖包括覆盖地球表面的天然或人工植被以及人工建筑，是地球表面的生物物理状态，是覆盖地面的自然物体和人工建筑物的综合体，反映的是地球表层的自然状况。

Based on directional law of thermal infrared radiance of non isothermal mixed pixel, the directional model of continuous vegetation has been established and the relationship between the component effective emissivities and var...

文中以非同温混合像元热红外辐射方向性规律为基础，建立了连续植被类型非同温混合像元热红外辐射模型，用蒙特卡罗方法模拟分析了连续植被的组分有效比辐射率与变量的关系。

In this paper, taken erectophile type continuous vegetation as an example, we did many Monte-Carlo simulations, and established empirical analytic expressions of component effective emissivities with soil emissivity and leaf area index.

徐希孺(北京大学遥感与地理信息系统研究所，地表过程分析与模拟教育部重点实验室，北京 100871)基金项目：国家&九。五&攀登预选项目，编号：95-预-38和国家重点基础研究发展规划项目，编号：

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。