查询词典 gis

Solenopsis invicta Buren; Biology; suitable distribution; risk analysis; GIS ; China

红火蚁；生物学；适生性分布；风险性分析；地理信息系统；中国

Based on the 1992-2007 remote sensing images and field survey data, and by using the landscape ecology theories and the method of conversion matrix, the spatiotemporal dynamics and landscape pattern of Spartina alterniflora in Yancheng coastal wetlands were analyzed by GIS. The results showed that the total area of S.

基于1992-2007年的遥感影像和野外调查数据，在地理信息系统的支持下，应用景观生态学理论和转移矩阵方法，定量分析了江苏盐城滨海湿地外来种互花米草的时空动态及其景观格局的演变规律。

Then in order to construct a GIS software, the paper offers a spatial-location method of general investigations in China, which is based on the summary of several methods of spatialization of statistics and the analysis of the advantages and disadvantage of the methods.

总结归纳了统计数据空间化的几种方法，并分析了各种空间化方法的利弊，从系统建设的角度，指出了我国普查统计数据的空间定位方法以及系统建设层次。

Discrete point data can be applied with other GIS data to address some specific questions in our researches. But how to spatialize the discrete point data has been a question itself.

5离散点数据的连续空间化问题一直是将某些社会经济离散点数据与其他地理空间数据相结合，应用于各项实际研究的瓶颈问题。

In a word, spatiotemporal data modeling is a new challenging topic of GIS.

时空数据模型在城市交通规划中的应用，是对时空应用研究的一次富有希望的探索。

It has been an important task of present environment planning and management to strengthen the design and development of environment stra...

加强GIS支持下的环境决策支持系统的设计开发工作已经成为当前环境规划与管理领域的一项重要的任务。

A case of cotton climate factor ,the author adopted seven evaluation index including boundary temperature, thermal requirement ,temperature intensity requirement, extreme temperature,optimum temperature , optimum rain and optimum sunshining hours ,then evaluated the basic information and meteorological factors.

以棉花气象指标为例，采用全生育期界限温度、积温需求、温度强度需求、极端气温、最适气温、最适降水和最适日照评价指标，进行基础评价和气象单要素评价，并通过调用GIS匹配出该作物在全国范围内的适宜生长区和不适宜生长区。

Results: This study established a web-based automatic syndromic surveillance system which could utilize the Internet to upload the data files, implement statistical analysis regularly, insert new data into database automatically , offer various types of statistical graphs and GIS (geographical information system) maps, and present the latest epidemic situation materials on the webpage.

研究结果：本研究建置之症候群监测系统，利用网际网路上传资料档案，定时排程执行统计分析，即时更新资料库内容，透过网页呈现最新的疫情资料统计图表，透过多重的查询介面，防疫工作人员能藉此对异常警示作更进一步的分析与确认，降低疫情误判的发生。

Supported by GIS, maps were overlapped of normalized vegetation index, topograph, soils, government districts, yearly rainfall, yearly mean temperature, accumulated temperature during growing period of wheat, so as that ecological layers for wheat were stratified objectively and a base graph of non wheat image cell was plotted for average year.

在地理信息系统支持下，将处理好的归一化植被指数图与地形图、土壤质地图、政区图、年降水量图、年平均气温图、小麦生育期积温图等背景图件叠加，进行比较客观的小麦遥感生态分层，并制成常年非麦象元分布底图。

At last, the goal is that devices between the field level and the baylevel is easy to interlink,in spite of voltage being l0KV or 500KV insPitC of GlS or trolly wire being used, in spite of oPtical voltage/currenttransducer or combined voltage/current sensors being used in the field level, in spite of devices produced by ABB or GEC being used, in case that the interface scheme (including adopting which kind of network and standard) between the field level and the bay level is confirmed.

最终要达到这样一个目的，一旦过程层与间隔层的接口方案确定（包括确定使用何种网络、依据哪一个标准），那么不管系统电压是10KV还是500KV，不管是GIS还是架空线，不管过程层使用的是组合式电压/电流传感器还是光纤电压/电流互感器，不管过程层使用的是ABB的设备还是GEC的设备，过程层的设备就可以同间隔层的设备很容易地实现互连。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。