川藏铁路西藏昌都段生态保护重要性评价     

王思源  赵敏敏  闫晶  马鑫  刁玉杰  付雷  罗倩 《现代地质》2021,35(1):234-243

生态系统服务功能与生态系统敏感性是衡量生态系统质量及实现高质量生态文明建设的重要依据。川藏铁路沿途跨越多个自然地理单元,生态环境保护是铁路规划、建设及运行过程中面临的关键问题。以川藏铁路西藏昌都段为研究对象,采取资料分析与野外调查结合的手段,运用生态评价模型对研究区的生态系统服务和生态脆弱性进行分析,并基于研究结果对铁路途经区域的生态保护重要性进行评价。结果表明,当前昌都境内川藏铁路涉及的生态保护极重要区、重要区和一般重要区占比分别为42.19%、52.69% 和5.12%。评价结果有助于在铁路规划、建设及运营过程中对工程活动进行合理布局,有针对性地降低对生态系统的负面影响,达到社会经济效益和生态效益双赢的目的。  相似文献   

泛在测绘及其在城市交通领域的典型化应用     

王庆国  罗晶  张昆仑  何海琦  刘晨林 《测绘通报》2018,(3):76-79,88

泛在测绘的发展为实时动态采集交通系统状态信息提供了新的技术手段和技术形式。本文在分析泛在测绘基本特征的基础上,从平均行车速度与交通量的估计、交通热点的实时获取,以及交通诱导服务几个方面研究了泛在测绘在城市交通领域的典型化应用。研究表明,泛在测绘的发展能为解决城市交通领域存在的许多问题提供新的方法和技术支持。  相似文献   

微服务在气象数据服务中的应用研究     

曾行吉  任晓炜  宋瑶  梅宁光 《气象研究与应用》2019,40(1):80-83

在气象数据服务逐渐接口化背景下,MUSIC作为CIMISS气象数据接口服务的主要系统,得到了各级业务部门的广泛应用,但也存在不完善和使用难等问题。基于MUSIC以微服务架构设计与开发气象数据服务系统,扩充了MUSIC接口,实现了接口编制、编排和图形化使用,提升了接口使用人性化水平,增强了MUSIC业务支撑能力和业务适应性。  相似文献   

Research Progress,Existing Problems and Fature Direction on River Ecosystem Service     

Xiaoshan Fan  Ping He 《地球科学进展》2018,33(8):852-864

River ecosystems are closely linked to human economic and social development, which are the most ecosystems at risk on earth. The research of ecosystem services can provide important scientific references for the ecosystems utilization,protection and management. On basis of summarizing the basic theories,assessment frameworks,technical methods and application practices related with research findings of river ecosystem services both at home and abroad,the existing shortcomings such as weak research foundation,lack of scientific and reasonable methods in ecosystem service evaluation,narrow application scope of the research results were pointed out. In consideration of the needs of society and the research tendency,the future developing directions of river ecosystems service were described: the solid research foundation should be established by multi-disciplinary and multi-scale integrations, the standardized,normalized and scientific evaluation system for ecosystem services shall be built by innovating assessment framework and technical methodology systems comprehensively, the new research areas including trade-offs and commercialization of ecosystem services will be carried out widely to expand our research perspectives and enhance the application values of the results.  相似文献   

A geospatial hybrid cloud platform based on multi-sourced computing and model resources for geosciences     

Qunying Huang  Jing Li  Zhenlong Li 《International Journal of Digital Earth》2018,11(12):1184-1204

Cloud computing has been considered as the next-generation computing platform with the potential to address the data and computing challenges in geosciences. However, only a limited number of geoscientists have been adapting this platform for their scientific research mainly due to two barriers: 1) selecting an appropriate cloud platform for a specific application could be challenging, as various cloud services are available and 2) existing general cloud platforms are not designed to support geoscience applications, algorithms and models. To tackle such barriers, this research aims to design a hybrid cloud computing (HCC) platform that can utilize and integrate the computing resources across different organizations to build a unified geospatial cloud computing platform. This platform can manage different types of underlying cloud infrastructure (e.g., private or public clouds), and enables geoscientists to test and leverage the cloud capabilities through a web interface. Additionally, the platform also provides different geospatial cloud services, such as workflow as a service, on the top of common cloud services (e.g., infrastructure as a service) provided by general cloud platforms. Therefore, geoscientists can easily create a model workflow by recruiting the needed models for a geospatial application or task on the fly. A HCC prototype is developed and dust storm simulation is used to demonstrate the capability and feasibility of such platform in facilitating geosciences by leveraging across-organization computing and model resources.  相似文献   

基于ArcGIS Engine钻孔综合柱状图的实现     

张建永  刘朋涛  何冀华  谢迎春  梁春利 《测绘与空间地理信息》2015,(3):148-150

论述了基于ArcGIS Engine组件实现钻孔综合柱状图的自动生成和图形整饰的技术方法。图件包括文档及点、线、面三类要素,内容有表头、钻孔信息、伽玛曲线、地质描述、地层符号等。本文从图件自动创建过程中涉及的创建矢量文件、图形渲染、标注、MXD文档编辑等方面介绍了相应功能设计思路及实现过程。  相似文献   

地理信息产业分布研究     

徐前祥 《测绘与空间地理信息》2015,(5)

地理信息作为一种新的信息维度对国民经济和社会发展各行各业均起到重要作用,地理信息产业的核心是地理信息企业,本文以省级行政区为单位,通过研究地理信息产业的甲级企业数量、业务数量与业务分布研究地理信息产业的分布,揭示产业分布现状与发展特点.研究结果表明,地理信息产业分布不均,中国大陆共796家甲级单位,北京市甲级单位占总数的13％,直辖市以互联网地图服务业务为主,省(自治区)以工程测量业务为主.  相似文献   

基于控制资料服务体系的遥感影像高性能集群处理系统     

龚建辉  李丽敏  陈中林 《测绘与空间地理信息》2015,(5):89-91

PixGrid是高分辨率遥感影像数据一体化测图系统,然而,在实际生产使用过程中,存在一些因素影响遥感数据的处理速度.针对这个问题,本文提出了以控制点、DEM、DOM等基础空间数据库为基础,建立控制资料服务体系,采用集成PixelGrid快速实现控制点自动量测的方法,提高了航空航天遥感资料的快速处理效率.  相似文献   

网络电子地图在触摸屏公众服务系统中的应用开发研究     

浮媛媛  赵建军  张洪岩 《测绘与空间地理信息》2015,(5):82-84

提出了在触摸屏公众服务系统中应用网络电子地图的框架体系,并分析了其中的关键技术.本文将Web地图服务和桌面应用程序进行有效结合,使得桌面系统可以直接访问与调用网络地图.其方法简单、快捷,并且可以节省大量资金,快速提高开发效率,最后其成功地应用到了公众服务系统当中,为电子地图在触摸屏中的应用提供了新的思路和方法.  相似文献   

开源地理信息网络服务平台构建   总被引：1，自引：0，他引：1  

张令奎  张小静  高凯 《测绘与空间地理信息》2015,(1):181-184

地理信息网络服务逐渐向多元化、层次化发展,政府部门、企事业单位等对轻量级专业型地理信息网络服务的需求逐渐加大。本文分析了地理信息网络服务的基本构成;阐述了开源平台GeoServer和OpenLayers;设计了基于开源平台的轻量级地理信息网络服务构建方案;并对其中的地图浏览、数据查询与更新等技术进行了介绍,在实际应用中具有较强的指导意义。  相似文献