全空间智能GIS平台关键技术及应用

基于全空间智能MapGIS平台,重点阐述了全空间GIS建模与可视化、大数据治理、智能分析等关键技术,并从地下空间透明化及城市管理智能化的角度,介绍了全空间智能MapGIS平台的应用场景和推广价值。     

应用多元统计技术和GIS技术进行印度野牛生境定量分析--以西双版纳纳板河流域生物圈保护区为例

印度野牛目前在中国仅发布于西双版纳地区可以视为西双版纳热带森林系统中的代表性物种。有关印度野牛生境信息的缺乏和西双版纳热带雨林修复的要求必须进行印度野牛生境的分析。文中综合利用多元统计技术和ＧＩＳ技术,建立逻辑斯蒂回归模型去评价所调查的印度野牛生活动位置与一组生增变量之间的关系。ＧＩＳ为逻辑斯蒂回归模型提供空间信息,并执行逻辑斯辑期蒂模型预测印度野牛生培在该区的空间分布概率。结果表明,硝塘、居民点     

资源环境信息系统集成平台的设计、实施与应用

“数字地球”概念的提出对地理信息系统的集成开发提出了新的要求。针对目前一些主流的地理信息系统数据库设计及系统集成技术,比较分析了不同解决方案的特点及存在的问题,并通过具体实例,展示不同方案的实际应用效果。为实用型的地理信息系统应用软件的设计和实施提供参考。     

GIS在衢州市茶叶种植气候区划中的应用

建立了衢州市数字高程模型（DEM），利用气候要素推算模型和GIS的离散点插植，建立与DEM同分辨率的栅格图。由此利用小网格推算衢州农业气候资源的立体分布，分析研究茶叶种植气候区划，获得较好的效果，对茶叶种植有一定意义。     

洞庭盆地近现代非均匀沉降变化分析

结合历史文物资料、遥感数据、实测1∶50 000地形图,利用GIS的数据处理和空间分析方法,对洞庭盆地的非均匀沉降问题进行了分析,得到了各个时间段内洞庭盆地的沉降速率图,通过对各速率图的统计分析,得出非均匀沉降的时空变化规律,这对于掌握洞庭盆地的变化趋势和土地利用等方面具有重要的理论意义。     

CorelDRAW矢量地图高保真Web发布方法研究

基于CorelDRAW矢量地图产品,提出一种基于分层可缩放矢量图形（scalablevectorgraphics,SVG）组织、集成表达的技术方法,解决了高保真地图发布的问题。首先将CorelDRAW矢量地图高保真分层转换为多个SVG格式文件;然后对SVG文件中符号化信息进行批量处理;最后使用WebGIS框架库将各SVG地图加载到Web平台,实现CorelDRAW矢量地图的展示与交互。实验结果表明,该方法能将CorelDRAW矢量地图高效、高质量地发布到Web平台。     

云GIS架构下的电网数据并行计算及编辑技术研究

随着电网GIS业务应用的拓展,海量空间数据量呈几何级数增长,如何系统地存储和管理地理空间数据、提高软硬件的利用率和高效地服务更多用户,成为了电网GIS实际应用的新的研究热点。以南方电网GIS平台为例,主要研究云GIS架构下的数据并行计算及编辑的关键技术,结合云计算在大数据处理方面的优势,来解决电网GIS所面临的困境。首先概述了云GIS的架构;然后重点介绍云计算与GIS结合的关键技术;最后通过在南方电网的应用实践证明相关技术的可行性及先进性。     

A modified DRASTIC model for Siting Confined Animal Feeding Operations in Williams County,Ohio, USA

Three of DRASTIC’s parameters (Depth to Water, Soil Media, and Topography) were modified and another parameter was added (land use/land cover) to the model to determine the potential impact on groundwater from Confined Animal Feeding Operations (CAFO) manure lagoon settings and manure application as fertilizer. Williams County is a mostly agricultural county located in northwest Ohio, USA. It currently has three CAFOs, all dairy, with the possibility of the construction of a multi-million chicken egg CAFO in the near future. A Geographic Information System (GIS) was utilized to modify the Ohio Department of Natural Resources (ODNR) DRASTIC map for the county to fully assess the county-wide pollution potential of CAFOs. The CAFO DRASTIC map indicates that almost half of Williams County has elevated groundwater pollution potential. The rest of the county, primarily the southeast corner, has lower CAFO groundwater pollution potential. Future CAFO development within the county should focus on the southeastern portion of the county where the groundwater table is deeper, and the aquifer is composed of shale substrate with low hydraulic conductivity. The CAFO DRASTIC results are intended to be used as a screening tool and are not to replace site-specific hydrogeologic investigations.     

Potential of Satellite Remote Sensing and GIS for Landslide Hazard Assessment in Southern Kyrgyzstan (Central Asia)

Big landslides are one of the main natural hazards in Kyrgyzstan, which are concentrated in the foothills of the high mountain ranges along the Eastern rim of the Fergana Basin. Because of the high number of landslides and their occurrence over large areas there is a strong need for effective and objective landslide hazard assessment at a regional scale. In Kyrgyzstan satellite remote sensing data represent the only source of multitemporal information about surface conditions covering large areas. Against this background the goal is the development of a satellite remote sensing and GIS-based system for quantitatively oriented and spatially differentiated hazard assessment. During the presented pilot investigations in the area of the Upper Maili Suu river basin a methodological framework has been developed incorporating remote sensing and GIS techniques for various levels of information extraction. So far, methodological investigations have been focused on the potential of satellite remote sensing data from different optical (Landsat-(E)TM, ASTER, MOMS-2P) and radar (ERS-1/2) systems for the creation of an improved knowledge basis for hazard assessment. This includes landslide identification, generation of topographic information and characterization of the geological setting. The derived primary information have been analyzed in a GIS environment to gain an improved process understanding as a main prerequisite for successful hazard assessment. The results show that currently available satellite remote sensing data are suitable for landslide investigation in Kyrgyzstan. Full exploitation of their information potential requires combined analysis with other thematic information based on methods of interactive and automated information extraction.     

基于RS和GIS的临武县矿山地质环境调查评价

本文通过遥感解译和实地核查,查明了临武县主要的矿山地质环境问题,并对矿山地质环境问题和地质环境背景条件进行分析研究,建立矿山地质环境综合评价指标体系,应用"专家打分-层次分析法"确定评价指标权重,根据相关规范确定评价指标等级,建立评价模型。基于ArcGIS平台,对各指标进行信息提取、赋值和叠加运算,再根据综合评价分级标准,得到矿山地质环境综合评价分区图。评价结果与实际调查情况相符,说明建立的评价指标体系较合理。研究成果对临武县矿山地质环境保护与生态文明建设具有重要的参考意义。