首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 171 毫秒
1.
2008年以来地图学眼动与视觉认知研究新进展   总被引:7,自引:0,他引:7  
地图是人类日常生活中不可或缺的工具。地图认知作为研究人对地图的感知、学习、记忆、推理和决策的科学,一直以来是地图学基础理论的重要内容。作为地图认知研究的核心,近年来地图视觉认知在相关学科(如心理学、认知科学和计算机视觉)和新的研究手段(如眼动跟踪、脑电和核磁)的促进下取得了一系列新的研究成果。尤其是眼动跟踪方法作为地图视觉认知研究的重要手段之一,越来越受到研究者的关注,为地图视觉认知研究的定量化、实用化提供了有力支撑。本文系统地梳理了2008年以来眼动跟踪方法在地图视觉认知研究中取得的新进展,并将其归纳为6个发展趋势,分别包括:① 刺激材料:从静态地图到动态交互地图;② 研究范围:从地图认知到地图空间认知;③ 实验环境:从实验室环境到真实环境;④ 地图维度:从二维地图到三维地图;⑤ 个体差异:从单一维度到多维度;⑥ 研究目的:从规律探究到实践应用。本文最后总结了未来研究面临的挑战、难点和可能的解决方法,期望能在地图视觉认知研究中起到抛砖引玉的作用。  相似文献   

2.

Because the property tax is structurally tied to market values of dwellings through the assessment function, rapidly increasing market values may beget rapid increases in property taxes. Public awareness of this process was instrumental in California's 1978 passage of the Jarvis-Gann Amendment. Millage rates should be indexed to counterbalance changes in market values.  相似文献   

3.
Responding to the threat of climate change, conserving freshwater ecosystems and securing adequate energy and water supplies are among the greatest challenges facing modern societies. Yet recognition of the interdependencies between climate, energy and water policy—with resulting synergies and trade-offs—remains limited, leaving societies and governments alike vulnerable to the dangers of conflicted or unintended policy outcomes from sectoral decisions. In this paper, we analyse current Australian climate, energy and water policies to identify the risks of perverse outcomes between the three policy sectors. In doing so we categorise the conflicts and synergies between particular energy generation, carbon sequestration and water supply policies to improve understandings of the challenges facing decision makers in Australia and internationally. Four types of interventions are identified that would enable integration and optimisation of policies, namely: better cross-sectoral knowledge to inform decisions; the identification of technologies with co-benefits; markets with broader cross-sectoral participation (including linking water and carbon markets); and better-integrated governance institutions.  相似文献   

4.
《The Journal of geography》2012,111(4-5):161-166
Abstract

A twelve-question framework for teaching, learning, and assessing environmental issues was created through analysis of environmental textbooks and interviews with professors and researchers who specialize in the environment. Concepts in the framework include: causes, scale, spatial distribution, longevity, consequences, risks, economic implications, solutions, obstacles, social values, stakeholders, political status, behavior changes, and personal actions. The twelve-question framework was submitted to a validity panel of geographers. Statistical analysis of responses from the panel indicates that the framework is valid.  相似文献   

5.

Cognitive distance is analyzed in relation to various elements of the built environment. The basis for accepting a power function as the underlying functional relationship between cognitive distance and its objective counterpart is discussed. This counterpart has been assumed to be objective distance. Evidence is presented to indicate that cognition of distance is based upon travel time rather than upon objective distance or upon objective distance modified by other elements of the built environment.  相似文献   

6.
Abstract

While attempting to establish a workable methodology for the study of environmental perception through history at the undergraduate college level, it was discovered that certain socio-cultural institutions, i.e., economics, politics, religion, and science/technology, play a dominant role in the formation of human thought and subsequent behavior patterns. By reducing human action to categories, students find it possible to investigate the influence of essentially non-physical aspects of environment on environmental perception, and they discover how environmental perception maintains or alters socio-cultural conventions. Here, the Middle Ages provide an example of how one socio-cultural convention — religion — modified human thought, behavior, and environmental alteration.  相似文献   

7.
《The Journal of geography》2012,111(5):487-494
Abstract

Although geography is being revived in the K-12 curriculum, preservice teachers—candidates for the teaching profession—now in our universities are not universally reaping the benefits of cooperative efforts of geography and college of education faculty. Reform is appropriate in both camps. Colleges of education, influenced by many agents, including Certificate/licensing regulations, accrediting agencies, professional organizations, and a stream of reform movements, are bringing education to the level of a true profession. The dimensions of the reform underway and several key players offer great opportunities for geography education and for improving the general climate for teaching excellence in institutions of higher learning. Candidates for the new teaching profession and their education faculty are teaching and learning collaboratively, and conducting research in diverse school districts. Geographers have new reasons and new opportunities to participate in the education of the geography teachers of tomorrow.  相似文献   

8.
Increasing recognition of the value of practice-based or experiential knowledge in natural resource management justifies the creation of a new category of articles in Society & Natural Resources that we are calling Practice-Based Knowledge (PBK). The rationale for focusing on PBK is due to its key role in the emergence of hybrid governance institutions across state, market, and civil society, understanding the complexity of dynamic socioecological systems, recognizing the challenges of multiple knowledge systems and context-specific practices, embracing the power of informal institutions and civic science, and engaging debates on the growing prevalence of market-oriented conservation. The goal is to provide a dedicated space within the published, peer-reviewed literature for scholars, government officials, nonprofit managers, and engaged citizens to share experiences informed by practical action. Relevant and timely practice-based insights may improve understanding and management of social and ecological processes and systems, while also offering the potential to contribute to theory.  相似文献   

9.

In 1982 a c.5 m2 slab of peat, c.25 cm thick, was discovered on a peat bog on the island of Andøya in northern Norway. The peat slab, which weighed c.1 ton, was found 4 m to 5 m from a hole having precisely the same shape. Investigations on Andøya to date have provided information on six quite similar phenomena with slab weights varying between 100 kg and 4 tons. Outside Andøya, five similar phenomena have been recorded in Norway, and pieces of earth displaced from their original locations have been reported in Britain, Germany and the United States. Lightning is hypothesized to have caused these phenomena.  相似文献   

10.
What is political geography?

Friedrich Ratzel is usually acknowledged as the father of political geography. His Politische Geographie was published in 1897. Reflections on the influence of geography on political events were, of course, made long before Ratzel's time. Herodot tells how the Persians wanted Cyrus to take them to a more fertile land, suitable for a Herrenvolk. The king declined, arguing that such a step might change them into a weak and decadent people. Similar ideas have often been expressed and are not unknown in our own time.

Herodot tells how the Persians wanted Cyrus to take them to a more fertile land, suitable for a Herrenvolk. The king declined, arguing that such a step might change them into a weak and decadent people. Similar ideas have often been expressed and are not unknown in our own time.

Ratzel's definition of political geography was:

Political geography studies and teaches the connection between spatial facts and political conditions, events and developments.  相似文献   

11.
全球经济发展和日益增强的人类活动给脆弱的生态系统带来了巨大挑战。为避免、减少和扭转荒漠化,帮助改善当地居民生计,加强抗灾能力,近年来,国内外科学家和相关机构研发出了一系列技术体系和技术模式,对生态脆弱区退化生态系统展开了全面的治理和恢复。然而,部分已有研究和实践在很大程度上限制了优良技术的筛选和推广应用及对技术需求的评估,造成了资金和人力的浪费和损失。文章旨在刻画荒漠化治理技术演变规律和发展趋势,识别并评估主要生态技术。数据来源包括国际组织数据库、中国知网、其他文献报告以及机构和专家调查问卷。文章识别了人类防治荒漠化的治理和恢复技术及模式,总结不同自然条件下荒漠化治理技术的三阶段演化规律和趋势,自然灾害、人类活动和社会经济技术发展驱动技术演变。识别并划分了生物、工程、农作和管理4类不同作用原理的荒漠化治理技术及模式。最后从难度、成熟度、有效性、适宜性和推广潜力等5个维度开展技术评价。研究为因地制宜、综合治理、合理开发利用干旱区资源,提高生态技术应用效果以及促进优良技术的输出和引进提供参考。  相似文献   

12.

Concomitant with careless human interference in the delicate environmental balance, the Earth’s surface is witnessing a variety of changes in land use and land cover (LULC). Acquisition of a sound understanding of LULC is an important aspect of maintaining a sustainable, benign, healthy environment. The present work highlights a spatiotemporal study on the LULC features of Alappuzha District, an ecologically fragile area in southern Kerala, a state in South India. The study area faces diverse environmental challenges including decline of landforms, rising sea levels, population expansion and anthropogenic encroachments on the ecological balance. This investigation compiles an audited account of the modifications, in each class of LULC, using geospatial technologies. We interpreted satellite imagery from the Landsat 8 and the Landsat multispectral scanner for the years 1973 and 2017. The LULC aspects were categorized into seven classes: waterbody, waterlogged area, mixed vegetation, built-up land, uncultivated area, paddy field and sandy area. Our findings affirm that the expansiveness of the built-up land area is directly proportional to the growth of the population. Advanced technologies such as remote sensing and geographic information system accentuate alterations in land use patterns over time and the extent to which the changes affect the human population and the natural habitat. We verified the results of our research by assessment of accuracy and ground truth confirmation of the LULC features.

  相似文献   

13.
ABSTRACT

The “subsumption of nature” framework focuses on productivity increases and extractive innovations in nature-based industries. In this article, we argue that it can also be employed beyond that context in order to capture the convoluted dynamics of market environmentalism. To substantiate our argument, we draw on recent fieldwork on “Trees for Global Benefits,” a forestry-based offsetting project in western Uganda. Like industrial tree plantations, this project relies on the subsumption of carbon sequestration to market imperatives in order to guarantee the quality of its carbon credits. The ecological and socioeconomic difficulties this process engenders give rise to unintended consequences and set in motion the disciplining of the carbon offset producers themselves. The application of the subsumption framework to nonindustrial sectors in this way calls attention to the interlinked socioecological dynamics involved in the subsumption of nature, and highlights potential synergies with previous work on the subsumption of labor.  相似文献   

14.

In this paper, I look at the use of qualitative methods in health geography. I focus on two projects using in-depth interviews with people with HIV/AIDS. Drawing from feminist work on qualitative methodologies and the production of knowledge, two questions are posed. First, what insights do interviews offer about people's daily experiences with HIV/AIDS? Second, given that interviews involve direct contact between interviewer and respondent, what are the implications of using this methodology? Projects reveal that living with HIV/AIDS involves a complex series of negotiations. These include negotiating one's own identity within medical discourse, dealing with health care professionals, and choosing how to use medication. The projects also indicate that qualitative research itself involves a process of negotiation. Researchers' preconceptions, interview settings and formats, and relationships established during research can effect research outcomes andresearch participants. I argue that a willingness to reflect critically on the use of qualitative methods is needed to safeguard against these unintended consequences.  相似文献   

15.
ABSTRACT

The increasing popularity of Location-Based Social Networks (LBSNs) and the semantic enrichment of mobility data in several contexts in the last years has led to the generation of large volumes of trajectory data. In contrast to GPS-based trajectories, LBSN and context-aware trajectories are more complex data, having several semantic textual dimensions besides space and time, which may reveal interesting mobility patterns. For instance, people may visit different places or perform different activities depending on the weather conditions. These new semantically rich data, known as multiple-aspect trajectories, pose new challenges in trajectory classification, which is the problem that we address in this paper. Existing methods for trajectory classification cannot deal with the complexity of heterogeneous data dimensions or the sequential aspect that characterizes movement. In this paper we propose MARC, an approach based on attribute embedding and Recurrent Neural Networks (RNNs) for classifying multiple-aspect trajectories, that tackles all trajectory properties: space, time, semantics, and sequence. We highlight that MARC exhibits good performance especially when trajectories are described by several textual/categorical attributes. Experiments performed over four publicly available datasets considering the Trajectory-User Linking (TUL) problem show that MARC outperformed all competitors, with respect to accuracy, precision, recall, and F1-score.  相似文献   

16.
《The Journal of geography》2012,111(6):217-225
Abstract

This article situates geospatial technologies as a constructivist tool in the K-12 classroom and examines student experiences with real-time authentic geospatial data provided through a hybrid adventure learning environment. Qualitative data from seven student focus groups demonstrate the effectiveness of using real-time authentic data, peer collaboration, and geospatial technologies in learning geography. We conclude with recommendations about geospatial technology curricula, geospatial lesson design, providing preservice teachers with geographic technological pedagogical content knowledge, and encouraging further research to investigate the impact, affordances, and pedagogical implications of geospatial technologies and data in the K–12 classroom.  相似文献   

17.
ABSTRACT. Biopolitical use of geosurveillance can create and sustain a politics of fear. Although the majority of surveillance literature focuses on individuals, in this article I focus on groups and populations, drawing on Michel Foucault's analysis of biopolitics. After discussing the forms and history of geosurveillance I argue that three particularly important factors contribute to these politics: divisions, geospatial technologies, and the risk‐based society. In order to combat the negative unintended consequences of these factors I suggest that more attention be paid to the mutual relationships between geospatial technology and politics, rather than on assessments of the value of individual surveillant technologies. (09–11–06) 12:01 PDT SAN FRANCISCO—A United Airlines flight that was diverted to Dallas this morning after an unclaimed electronic device was discovered onboard has landed at San Francisco International Airport, an airport spokesman said. The flight crew on United flight 351 from Atlanta to San Francisco elected to stop in Dallas around 7 a.m., said SFO spokesman Mike McCarron, after finding a backpack on board that no one claimed. The unattended backpack contained a PDA device, McCarron said, “like a Blackberry.” Authorities searched the plane in Dallas and found nothing unusual, he said.—Marisa Lagos, 2006.  相似文献   

18.
ABSTRACT

European bison (Bison bonasus), a flagship species for the burgeoning re-wildling movement, faced challenges common to large mammals globally. These include deforestation, land use conversion, poaching, and a lack of genetic diversity. Despite these limitations, organizations such as Rewilding Europe seek to reintroduce the species to its historic range. This study focused on finding suitable reintroduction locations for a population of at least 120 individuals. Through GIS-based multi-criteria decision-making using weighted linear combination and analytical hierarchy process, a model based on known bison habitat preferences, human-centered habitat constraints, and surface geography was used to identify regions large enough to accommodate a new herd. The study area included central-eastern Europe Union countries, specifically Germany, Poland, Lithuania, and Latvia. The model identified several highly suitable regions large enough to support a new herd, with the most optimal located in Poland. Highly suitable areas represented 2.7% of the study region. Relative isolation of suitable regions reinforced the challenges of promoting gene flow between reintroduced European bison herds. This model can be replicated in other conservation planning contexts, including reintroduction of large herbivores considering anthropogenic, ecological, and physical conditions.  相似文献   

19.
感知技术在文化遗产研究中的应用与展望   总被引:1,自引:1,他引:0  
感知技术的发展为文化遗产的探测、保护、利用和传承带来了机遇和挑战。鉴于当前文化遗产研究中应用的感知技术的复杂性及多样性,本文对感知技术及其在文化遗产研究中的应用进行系统梳理。首先,对感知技术的概念进行总结,重点介绍在文化遗产研究中发挥重要作用的多源遥感平台、社交媒体、移动通讯、智能交通等多源传感器的特点,以及关键信息处理技术,包括数据挖掘和知识发现、可视化技术以及虚拟现实技术;其次,梳理了感知技术在物质文化遗产、非物质文化遗产以及群体对于文化遗产的体验和评价等方面的应用进展;最后,探讨了文化遗产研究中感知技术在数据精度、多源数据融合、信息处理等方面存在的问题,指出其数据共享化、平台网络化和应用社会化的发展趋势。  相似文献   

20.
Abstract

In Colonial America soil was commonly evaluated by the vegetation it produced: heavy timber and lush undergrowth indicated fertile soil—a thin covering of trees, barrenness. Settlers in the “Genesee Country” of New York developed new understandings about the relationship between soil quality and vegetation. Here was encountered a thinly-timbered landscape which they called “oak openings.” Although at first suspicious of the fertility of this thinly-timbered land, it was found to produce fine wheat crops. Thus, a new concept of landscape appraisal entered the culture of these people — thinly-timbered land may be fertile. By the time the agricultural frontier reached Inner Michigan, the old concepts about soil fertility and vegetation had been largely overturned. There, it was the open land (oak openings and prairie) that attracted the immigrants, not the heavy timber. The typical settlement sequence in Inner Michigan was to take up the prairies first, the oak openings next, and the heavy timber last.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号