查询词典 vegetation

In order to provide the visual information for synthetical management of water and soil conservation, this research hotlinks the attribute of terrain and vegetation to transportation area and sedimentation area through graph database、 erosion database and GIS.

为了给水土保持部门综合治理提供可视化信息，本研究通过建立图形数据库、侵蚀量数据库，借助地理信息系统（ArcView 3.2）将实际地形及植被等属性与侵蚀量的沉积区、搬移区域图形斑块进行热链接。

It is concluded from the cluster analysis that the diversity of arthropod community is mainly affected by the vegetation types in addition to environment factors.

通过聚类分析得出，对节肢动物群落多样性高低的影响因素中，植被类型的多样性对其影响最大，其次是环境因子。

SPOT5 ,ASTER and CBERS data were used to discuss the method of identification and extraction of vegetation information.

结果表明，与单一传感器数据的结果相比，综合利用多源遥感数据能较大程度地提高植被的提取精度。

In this paper, the authors use the ASTER remote sensing image to extract vegetation index information and carry on the comparative analysis.

本文对ASTER遥感图像进行解译，提取植被指数进行比较分析，希冀对青海湖地区的可持续发展提供一些帮助。

From the views of close correlation between dynamic mechanism of wetland evolution and sediment transport, the relationship among soil salinity, vegetation, avifauna distribution and wetland elevation is studied.

着重从湿地形态演变的动力机制与泥沙运动密切相关的角度，分析和探讨了黄河三角洲湿地土壤盐分、植被和鸟类等分布与湿地高程的关系。

The results demonstrate that successive changes of vegetation and avifauna distribution gradually take place along with the soil salinity and spatially present preferable distributing orderliness with the river mouth extension.

研究结果表明，黄河三角洲湿地植被群落与动物的种群随着土壤盐分变化逐渐发生演替变化，而随着河口淤积延伸在空间上呈现较好的分布规律。

On the basis of sensitivity analyses using the PROSAIL model, the present study demonstrates an approach that uses a neural network based on image classification incorporated in PROSAIL for accurate retrieval of LAI. By including the soil reflectance index in the original PROSAIL model to take the place of soil background reflectance parameters that are difficult to determine, specific neural networks are constructed corresponding to individual types of vegetation cover.

在PROSAIL模型敏感性分析的基础上提出了一种基于影像分类的神经网络反演方法，引进了土壤反射指数用于替代原模型中难以确定的土壤背景反射参数，分别针对不同植被类型建立各自的神经网络，对经过大气纠正后的Landsat ETM+影像进行了模拟实验并同野外实测LAI数据进行比较。

It is a savage world, filled with badlands and bluffs and hardscrabble vegetation.

一个蛮荒的世界，到处是荒野、峭壁和贫瘠的植被。

Canalization, commercial development and pollution have resulted in a loss of aquatic biota and bankside vegetation in the lower reaches of many rivers. Wetlands have been lost to agriculture for grain production and grazing.

开凿运河，商业开发和污染造成了许多河流下游水生生物和河岸植被的减少，湿地被用于农业，变成了农田和牧场。

Air, water and soil pollutants (S7)Canalization, commercial development and pollution have resulted in a loss of aquatic biota and bankside vegetation in the lower reaches of many rivers.

环境关系开凿运河、商业开发和污染造成了许多河流下游水生生物和河岸植被的减少，湿地被用于农业，变成了农田和牧场。

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。