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1.
This paper asks why we teach what we teach to geography undergraduates in quantitative methods courses. We re-consider the origins of quantitative geography and note how partial and historically contingent the traditional syllabus is. From this basis, we suggest that other approaches should be considered in order to provide a broader training in quantitative methods. We then propose an example syllabus that attempts to integrate a range of quantitative methodologies within a common, applied context that is also connected to relevant social, economic and political issues. We conclude that students with a better understanding of methods in physical and social science could be very valuable to the betterment of society, but to achieve this may require a change to our quantitative methods teaching.  相似文献   

2.
基于GIS的山地交通地理信息分析方法与技术   总被引:1,自引:0,他引:1  
徐京华 《山地学报》2004,22(3):378-382
在分析讨论传统山地交通地理信息分析方法弊端的基础上,对基于GIS及GIS-T的山地交通网的建设、管理使用等所需的相关地理信息的分析意义、技术方法等问题进行了探讨。以成都市域的相关数据和MapInfo平台为例,研讨了基于GIS的山地交通地理信息分析基本步骤及山地交通网自身及其主要环境要素的分析内容和方法。研究得到了基于GIS的山地交通地理信息分析方法在可视、实效等方面明显优于传统方法;相关研究的难点及今后进一步深入研究的方向及内容等结论。  相似文献   

3.
城市地理信息系统的发展   总被引:3,自引:1,他引:3  
回顾了城市地理信息系统的历史,分析了城市地理信息系统的现状和问题,指出了城市地理信息系统的发展方向。  相似文献   

4.
空间分析技术与地理信息系统的结合*   总被引:59,自引:5,他引:59  
王学军 《地理研究》1997,16(3):70-74
空间分析和地理信息系统是两种有效的空间信息分析和处理技术,二者的结合一方面可以大大拓展GIS的空间分析功能,另一方面也可使得迅速发展的空间分析得到GIS的有力支持,文中对此进行了探讨,并分析了二者结合的途径。  相似文献   

5.
地形分析与地理信息系统在水文地貌学中的应用   总被引:3,自引:0,他引:3  
本文阐述了利用地理信息系统进行大面积及高分辨率的地形分布方面的最新进展,并且讨论了一些由地理信息系统获得地形参数的规律,并提供了作者本人的一些设想。  相似文献   

6.
我国地理信息产业的发展现状及思考   总被引:3,自引:0,他引:3  
文章讨论了地理信息和地理信息产业的涵义,以及发展我国地理信息产业的重要性,对我国地理信息产业的现状进行了思考与分析,并提出了建议。认为我国地理信息产业面临机遇与挑战,通过扶持国产GIS软件,制定空间数据标准和交换格式标准,扩大地理信息技术服务的应用领域,珍惜人才,重视教育,我国的地理信息产业将有很大的发展空间。  相似文献   

7.
地理科学发展与新技术应用   总被引:3,自引:3,他引:0  
当代计算机、互联网、航天航空、自动化和传感网、环境和生态修复等技术发展很快,并渗透到许多基础与应用基础研究学科.以综合性、交叉性和区域性为特点的地理学借力于新技术应用,学科发展得到有力促进,突出表现包括:①研究时空拓展到近实时和全球,基本解决异域和极端地理环境数据难获取问题;②数据获取方式和渠道多样性促进了数据的爆发性...  相似文献   

8.
上海市农业地理信息系统信息分类思考   总被引:2,自引:0,他引:2  
文章首先阐述了构建农业基础信息分类体系的重要意义,然后分析了基于GIS的农业信息源的基本特征。据此提出了上海市农业地理信息系统信息分类的宏观指导思想和基本原则。在此基础上,确定了该市农业地理信息系统中农业信息分类的方法、依据和分类体系,并对系统构建中遇到的主要问题和处理方法作了说明。  相似文献   

9.
选用MapObjects控件作平台,在VisualBasic6.0环境下进行了易门县绿汁江旅游资源查询系统的设计与开发。在选择了系统开发平台后,进行了数据收集、系统结构设计、数据库的建立,最后进行系统各功能子模块的设计与实现。系统在实现空间属性双向查询功能的基础上,还实现了如空间数据可视化、地图着色整饰、地图编辑输出等功能。系统开发后,可为该地区的旅游规划提供科学依据,为旅游业的开发者和管理者在作决策时提供参考。  相似文献   

10.
    
Substantial changes in a core idea of geography, integration, have occurred since Alexander von Humboldt published Kosmos (1845-1862). These changes are part of a larger shift in Western civilization to mechanistic reasoning. This shift led to the strengthening of system-based analysis, central to the development of geographic information systems (GIS). The duality of holism and the systems approach has led to an apparent contradiction in geography. R. Hartshorne in The Nature of Geography described this contradiction, but as did Alfred Hettner and Emil Wisotzki before, moved to partial systems as the core concept of geographic integration. Hartshorne's concept of vertical integration is the antecedent for the ubiquitous GIS layer model. The reduction of geographic relationships and processes to mechanistic components (layers) aids the systematic approach, but may lessen geographic understanding of a place's interrelationships. Although the partiality of the system approach was already acknowledged by Finch and Hartshorne in the 1930s, the tension between holistic and system approaches in geography remains. Holism and system-based approaches are indeed complementary methods for developing geographic understanding. Using holistic approaches to understand geographic phenomena, before we teleologically (following a purpose) analyze phenomena as a system, extends GIS to include broader interrelationships of geography in specific locations.  相似文献   

11.
    

Substantial changes in a core idea of geography, integration, have occurred since Alexander von Humboldt published Kosmos (1845-1862). These changes are part of a larger shift in Western civilization to mechanistic reasoning. This shift led to the strengthening of system-based analysis, central to the development of geographic information systems (GIS). The duality of holism and the systems approach has led to an apparent contradiction in geography. R. Hartshorne in The Nature of Geography described this contradiction, but as did Alfred Hettner and Emil Wisotzki before, moved to partial systems as the core concept of geographic integration. Hartshorne's concept of vertical integration is the antecedent for the ubiquitous GIS layer model. The reduction of geographic relationships and processes to mechanistic components (layers) aids the systematic approach, but may lessen geographic understanding of a place's interrelationships. Although the partiality of the system approach was already acknowledged by Finch and Hartshorne in the 1930s, the tension between holistic and system approaches in geography remains. Holism and system-based approaches are indeed complementary methods for developing geographic understanding. Using holistic approaches to understand geographic phenomena, before we teleologically (following a purpose) analyze phenomena as a system, extends GIS to include broader interrelationships of geography in specific locations.  相似文献   

12.
The research record on the quantification of sediment transport processes in periglacial mountain environments in Scandinavia dates back to the 1950s. A wide range of measurements is available, especially from the Kärkevagge region of northern Sweden. Within this paper satellite image analysis and tools provided by geographic information systems (GIS) are exploited in order to extend and improve this research and to complement geophysical methods. The processes of interest include mass movements such as solifluction, slope wash, dirty avalanches and rock- and boulder falls. Geomorphic process units have been derived in order to allow quantification via GIS techniques at a catchment scale. Mass movement rates based on existing field measurements are employed in the budget calculations. In the Kärkevagge catchment, 80% of the area can be identified either as a source area for sediments or as a zone where sediments are deposited. The overall budget for the slopes beneath the rockwalls in the Kärkevagge is approximately 680 t a−1 whilst about 150 t a−1 are transported into the fluvial system.  相似文献   

13.
Although many have questioned the adequacy of quantitative methods for addressing issues of concern in critical geographies, such as social justice and inequality, many have argued that quantification can potentially make rich contributions to understanding and addressing these issues. In light of the recent attempts to reassert the critical potential and positive role of quantitative geography, we suggest in this introductory article for the Focus Section that the antagonism between critical and quantitative geographies is not beneficial to the discipline. We highlight some promising developments in modern quantitative geography and reflect on the ways in which the critical–quantitative binary can be at least partially eclipsed. We emphasize that knowledge in quantitative methods is essential for deciphering and challenging regressive political agendas, now often supported by numbers and quantitative analysis. Quantitative geography, when integrated with a critical sensibility and used appropriately, can be a powerful tool for fostering progressive social and political change.  相似文献   

14.
从Google Maps看我国全球化地理信息服务面临的挑战和对策   总被引:17,自引:0,他引:17  
以Google Maps为代表的地图服务的推出预示着全球化地理信息服务的开始。IT领域竞争市场的形成、高分辨率卫星影像的应用及Web地理信息服务开发平台的实现是全球化地理信息服务的主要趋势。面对全球化地理信息服务发展机遇,我国面临地理数据库建设、地理信息市场社会化与地理信息区域均衡发展的严峻挑战。在分析我国地理信息服务面临挑战的基础上,从数字化建设、地理信息服务市场培育、卫星遥感技术商业化发展3方面提出我国地理信息服务发展的对策与建议。  相似文献   

15.
海面-地面系统中三维古地面反演计算的剥蚀算法研究   总被引:2,自引:0,他引:2  
三维古地面反演计算是海面-地面系统研究中的一个基础研究。该文在前人研究的基础上提出了三维古地面反演计算的剥蚀算法,并与传统的加积算法做了比较分析,得出剥蚀算法比加积算法有对时间序列离散判断简单、方便计算等优点。同时,在GIS平台下实现了该算法,并以长江三角洲地区为试验区,进行了古地面虚拟反演计算,取得了较好的效果。  相似文献   

16.
环境与健康的评估问题和空间分析   总被引:1,自引:0,他引:1  
林绍颜 《地理学报》2001,56(2):239-247
评估环境污染对人民健康影响的研究需要结合空间,时间和统计分析,并吸引不同学科背景的研究人员合作研究,可是,在这个研究领域内,最重要的问题是研究结论的不可靠性程度很高,不同的研究方法会导致不同的结论,一个有系统的研究架构拥有不同的空间分析方法将会减少结论的可疑程度,有效的环保政策是需要可靠的研究成果,文中首先介绍在环境与健康的评估研究领域的四大重要问题,指出这项研究需要这项研究需要空间分析和地理信息系统方法,从而提出一个空间分析的研究框架和内裹的方法,通过路易斯安纳州的一个污染地点和肿瘤发病率关系研究实例,指出这项研究领域的各种问题和空间分析架构的重要性。  相似文献   

17.
新开河流域土地利用格局变化图谱分析   总被引:21,自引:0,他引:21       下载免费PDF全文
基于地学信息图谱分析方法,运用ARC/INFO软件,以马尔柯夫空间概率模型为基础,利用新开河流域33 年(1969-2001 年) 土地利用格局4 期的空间数据(1969 年、1979 年、1992年、2001 年),合成了一系列土地利用格局变化图谱,通过图谱分析来了解新开河流域的土地利用格局变化规律。结果表明:在过去33 年期间该流域土地利用格局发生了显著变化。耕地大幅度增加,其净增面积1357.2 km2,占流域总面积超过32%,其主要来源于草地、沙地、沼泽地、林地;沙地变化有所起伏,占流域总面积不低于23%,虽然总体呈减少趋势,但流域的草地沙化、耕地沙化还比较严重;草地大幅度减少,其净减面积1582.6 km2,占流域总面积由36.2%缩减为18.5%,其主要来源于开垦草地为耕地、草地退化成沙地、沼泽地、盐碱地以及草地改造种植林地;居民地、盐碱地呈增加趋势,湿地、林地呈减少趋势。  相似文献   

18.
针对黄土丘陵沟壑区土壤侵蚀非常严重、作物产量低而不稳以及农业生产力水平低下的特点 ,本文首先分析了近几年来王家沟流域不同种类和不同年份作物生产力变化的特征 ,然后在地理信息系统 (GIS)技术支持下 ,利用基于土壤侵蚀条件下的YIELD作物生产力模型并结合各作物的实际观测资料 ,从降雨量、气温等气象因素以及地膜覆盖、施肥、梯田等耕作措施两方面分析了该小流域作物生产力变化的原因 ,结果表明在气象因素 (大气降水 )和土壤侵蚀的共同影响下 ,土壤水分和养分的变化是影响该区域作物生产力变化的主要制约因素。  相似文献   

19.
针对黄土丘陵沟壑区土壤侵蚀非常严重、作物产量低而不稳以及农业生产力水平低下的特点,本文首先分析了近几年来王家沟流域不同种类和不同年份作物生产力变化的特征,然后在地理信息系统(GIS)技术支持下,利用基于土壤侵蚀条件下的YIELD作物生产力模型并结合各作物的实际观测资料,从降雨量、气温等气象因素以及地膜覆盖、施肥、梯田等耕作措施两方面分析了该小流域作物生产力变化的原因,结果表明在气象因素(大气降水)和土壤侵蚀的共同影响下,土壤水分和养分的变化是影响该区域作物生产力变化的主要制约因素。  相似文献   

20.
以中国科学引文数据库(CSCD)为数据源,采用文献计量分析方法,对1989 ~2013年发表的11 189篇地理信息系统(GIS)领域的研究论文进行统计,分别从发文年度、作者、机构、期刊、  相似文献   

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