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1.
Jeff Rose 《The Professional geographer》2018,70(2):305-310
Community engagement curricula and course design can provide substantial experiences for both community members and participating students. Using a case study approach, this research focuses on four steps in this process: initial community relationship forming, engaging in community service, transitioning to civic engagement, and developing a community-based research program. Narrative examples from student course evaluations position these community-based experiences as transformative for multiple parties. Institutional structures are presented as helpful entrees to engagement for students, while noting that community relationships provide contextualized, powerful, and meaningful relationships, supporting recommendations for emerging and existing community engagement programs. 相似文献
2.
孟加拉国沿海地区因其地理位置和自然灾害较多而归属生态环境脆弱地区,大约有3500万人生活在这里,他们的饮用水安全受到威胁。盐水入侵、砷和铁等重金属对水源的污染是造成水资源短缺的主要原因。海平面上升和气候异常事件加剧了沿海地区特别是西南沿海地区饮用水安全危机。本文以孟加拉国Satkhira地区的沿海Tala upazilas为例开展研究,采用基于GIS的多尺度分析方法来确定未来淡水缺乏解决方案和水源的选择,为此进行了问答式现场调查,收集研究区详细资料,以找到合适的水危机解决方案。基于浅层和深层两个不同含水层的资料(它们是饮用水主要来源的含水层水质),对不同水源的潜力和服务区域、社区的社会经济状况、用水类型以及相应的水源和用水需求进行了评价。研究发现,由于这里的地下水受砷、铁、盐碱污染,地表水又因管理不当而不能充分利用,在研究区及其附近很难找到其他的安全水源。在某些情况下,地表水在风暴潮期间由于高盐水的闪蒸和咸水养殖业的渗漏而遭污染。考虑到各种限制条件并结合现场数据、路网、聚落点位置、需水量等地理空间和社会经济信息进行分析,发现了一些符合社区饮用水需求的潜在水源点的分布位置,并提出了一些预防饮用水水危机和地表水可持续利用的技术措施。 相似文献
3.
The volunteered geographic information (VGI) gains increasing popularity with the general public and scientific community. However, the optimism about the VGI has been tempered by two critical issues: inequality in data coverage (social justice) and data quality. It therefore requires a better understanding of the mechanism driving VGI contributions and content quality. With a case of China, this paper demonstrates one potential avenue, examining the associations between VGI coverage/quality and local demographic and socioeconomic characteristics. In particular, VGI data are harvested from the OpenStreetMap for 333 cities in China. VGI coverage is measured by the total volume of different geographic features (point, line and polygon); and VGI quality is described from two aspects: completeness and accuracy. Geographically weighted regression (GWR) shows that both demographic and socioeconomic factors have statistically significant influences on VGI coverage and quality. More specifically, densely populous cities with more young, educated and non-agricultural people enjoy higher VGI coverage and quality. Cities with lower VGI coverage and quality are primarily located in the western and southwestern regions where the ethnic minorities concentrate. High VGI coverage and quality are possibly observed in economically developed cities with high marketization degree. Besides, possibility of high VGI coverage and quality occurs in cities with more labor in scientific research and greater percentage of employers in the tertiary industry. The GWR also demonstrates that the strength and nature of the obtained relationships vary across the 333 cities. The spatial non-stationary relationships may partially answer for the controversial empirical conclusions in earlier case studies at different scales. Quantitative analysis (Gini index, Lorenz curve and Moran's I index) further evidences the great inequality in VGI coverage and quality. It can be safely inferred that the differences in engagement and use of VGI, as a new digital divide, can raise troubling concerns on the social justice implications. 相似文献
4.
William J. Gribb 《The Professional geographer》2018,70(2):298-304
A crucial element in the foundation of geographic training is field experience and the opportunity to learn how to interpret the landscape. This element of the geographer's background provides a link between theory and reality. To enhance that experience, a place-based project focusing on civic engagement increases the student's understanding of geographic concepts, tools, and techniques while providing a service to a local community. This research proposes a model for developing classroom field experience that engages the student-researchers with a local community to address a community-based issue. A case study examining downtown parking in Laramie, Wyoming, is presented. The case study demonstrates how field experience, civic engagement, and collaborative learning can be incorporated into a classroom 相似文献
5.
城市供水水源地在促进城市的发展,解决城市水资源供需矛盾等方面发挥着重要的作用。目前山东省主要城市重点供水水源地共25处,采用水质综合指数法对2016年的水质状况进行评价,并根据2007～2016年期间水源地水质指标和水质指数WQI值分别进行了季节性Kendall检验和趋势线直观分析,通过两种评价结果的对比综合分析山东省水源地水质变化趋势,结果表明,山东省水源地现状水质较好。采用两种检验方法所得出的水源地水质变化趋势基本一致,避免了采用单一分析方法进行趋势分析的的局限性,互为补充和验证,分析结论合理可靠。 相似文献
6.
T.G. Measham L. BrakeC.J. Robinson S. LarsonC. Richards T.F. Smith 《Journal of Arid Environments》2011,75(10):968-973
The management of dryland environments involves the interaction of multiple government agencies and citizens, and is required to respond to a wide range of responsibilities and aspirations for a given region. This paper focuses on the characteristics of engagement between management agencies and citizens in a dryland region, presented here as a series of success factors. These factors are based on empirical research carried out in the Lake Eyre Basin in Australia, one of the world’s largest inwardly draining basins. The results reinforce generic and dryland-specific factors supporting successful community engagement. The former, such as building trust, working in partnership, supporting community champions, and maintaining transparency, are necessary but insufficient for achieving successful community engagement in the case study region. In addition, community engagement in the case study region also required respecting the extreme conditions and extraordinary variability of the Basin and committing to longer timeframes even if the outcomes of community engagement are slow to accrue, in order to take advantage of opportunities in more prosperous times. 相似文献
7.
Jasmine E. Saros 《Journal of Paleolimnology》2009,41(2):243-252
With the development of quantitative transfer functions to relate community structure to physicochemical variables, reconstructions
of past environmental conditions have been possible and have enhanced our understanding of various ecosystem processes. There
are cases, however, in which this approach is not applicable, or does not provide enough information for the questions being
asked. In these cases, some alternatives are to conduct experiments or to examine the distribution of species at a finer spatial
resolution. These two approaches have been used as alternatives to or in conjunction with the development of transfer functions.
In this review, I discuss the ways in which these two approaches are now being used in paleolimnological studies to enhance
our understanding of the ecology of the species found in sediment records and thus refine interpretations of environmental
change. My focus is primarily on studies that deal with establishing clearer relationships between environmental variables
and the growth or distribution of organisms. I present examples of how these approaches have been integrated in a variety
of studies, including those designed to: (1) refine and enhance reconstructions that are based on transfer functions; (2)
develop new paleolimnological tools to reconstruct environmental change; (3) explore mechanistic links in the relationships
between organisms and commonly reconstructed environmental variables; and (4) pose and test hypotheses based on patterns in
the sediment record. These cases demonstrate that the use of these approaches was essential to clarify species-environment
relationships as well as lake responses to disturbance. As in all disciplines, however, there are many challenges in this
area of research. In particular, the quantitative integration of these approaches with the sediment record is a major challenge,
due to disparate spatial and temporal scales. This research can also be quite labor-intensive, and provides information on
fewer taxa than in the calibration set approach. It also requires interdisciplinary training and/or collaboration in fields
that have historically been less integrated, hence they may require greater effort. These issues may hinder the use of these
approaches because of the perceived difficulty. I discuss these challenges and address possible solutions. 相似文献
8.
气候变化对水质与水生态的潜在影响已经成为当前必须面对的新问题和新挑战,这也引起了世界各国科学家和政府的高度关注。但是,由于它的复杂性和不确定性,目前针对该问题的科学研究和科学实践仍然十分有限。本文首先回顾了近年来国内外相关研究成果,并指出了研究现状与现实需要之间的差距。另外,基于作者在淮河和汉江的相关研究成果,我们认为,人类活动和经济发展所产生的排污是造成水质与水生态恶化的最重要的原因,同时,气候变化在此基础上具有推波助澜的增益作用,气候变化主要通过改变水温和水文情势进而影响水质和水生态。本文最后讨论了适应性对策的内涵,认为适应性对策应该包括适应方式和适应能力建设两个主要方面,适应性对策应该尽可能地具有针对性和可操作性。本文对今后的相关研究可起澄清概念和指明方向的作用。 相似文献
9.
Typical measures of food access use spatial-only methods to identify nearby food outlets and the quantity, quality, and variety of food available. This measure of spatial access falls short in explaining the effect that the operating hours of food retailers have on food access. Our study aims to complement the spatial dimension of access measures by bringing time in as a new constraint on food access. To this end, we developed three measures of spatial, temporal, and spatiotemporal access and correlated these measures with socioeconomic status (SES) in a case in Columbus, Ohio. Findings from our analysis of food access disparity suggest that low-SES neighborhoods in Columbus are not at a disadvantage of spatial access, but their limited temporal access is a more pressing concern. Implications drawn from the study would assist community advocates, local governments, and other stakeholders in deriving a better understanding of the local foodscape that are not only mediated by space but also time. 相似文献
10.
Morgan A. Crowley Joel Hartter Russell G. Congalton Lawrence C. Hamilton Nils D. Christoffersen 《社会与自然资源》2019,32(2):204-221
Non-industrial private forestland (NIPF) owners have options for engagement by following management strategies that reduce wildfire risk on their forestlands. Forest management engagement is a broad term with underlying categories and management implications. To better understand these categories, we examine interview data on the engagement of forest landowners from a case study of private forestland owner perspectives in northeast Oregon, USA. NIPF landowners outline two types of forest management engagement, one for property and one for community-focused forestland management. NIPF owners describe actions for engagement in public forestland management and how these actions differ from engagement in private management. Additionally, NIPF owners establish barriers to engagement in both public and private forestland management. Our findings can be used to better identify unengaged private forestland owners in the U.S. West, informing the design and implementation of extension and outreach for NIPF owners. 相似文献
11.
Qualitative research undertaken in a regional centre of northern Queensland revealed how community members with an interest in water quality see themselves and others being pro-active in maintaining healthy waterways. Interview analysis revealed that respondents saw social resilience to changing water quality as contingent upon personal perceptions of water quality; the ability of a whole community to respond to changes in water quality; and individual behaviour change. Many participants explained that, in general, individuals would not take responsibility for maintaining healthy waterways unless there were personal consequences for not acting. We relate these data to current literature linking individual attitudes to community pro-environmental behaviour. We conclude that certain conditions usually prevail before a whole community will take up environmentally responsible behaviour. These conditions include a latent level of social capital, collective social learning, agency coordination, sufficient resources, and personal significance. 相似文献
12.
阳澄湖水质现状及原因探讨 总被引：3，自引：0，他引：3
阳澄湖丰水期和枯水期水质调查结果显示:TN、叶绿素、TP和CODMn丰枯期都呈从西湖区向东湖区递减趋势,且一般枯水期大于丰水期,TP反之;丰枯期水质均较差,为Ⅳ类或劣Ⅴ类,污染物主要为TN和TP;富营养化加重趋势有所缓解,但水体仍呈富营养化状态。氮磷来源分析表明:丰枯期NO3--N、NO2--N与TN以及丰水期PO43--P与TP有显著正相关关系。叶绿素浓度与TN在枯水期有显著相关性,其他时期叶绿素浓度与TN、TP的相关性均不显著。阳澄湖养殖活动和底泥营养盐释放可能是导致上述变化的主要原因。 相似文献
13.
Researchers have cautioned against both erasing conceptual complexities and homogenizing communities in community-based natural resources (CBNRM) studies and interventions. Social capital is seen as an enabler of CBNRM, yet we argue that differential access to social capital and associated outcomes deserves greater attention to avoid oversimplification of community interventions. Drawing upon literature on social networks and social capital, we analyze survey and network data from two community ecotourism cases in Ghana to advance understanding of the empowering capacities and limitations of CBNRM through social capital access. Subpopulations within communities are considered. Results show that residents with greater access to social capital report greater levels of empowerment. However, that relationship seems to be conditioned by one’s involvement, demographics, and by the empowerment dimension under analysis. Implications of the differing relationships between cognitive and structural social capital in relation to several empowerment outcomes are discussed from theoretical, methodological, and practical perspectives. 相似文献
14.
15.
Alison Stenning 《Area》2005,37(4):378-383
This paper seeks to explore the challenge of studying geographies of Eastern Europe in Western Europe. It reflects on the growing relationships – imagined and material – between Eastern and Western Europe and engages in contemporary debates over 'relational geographies' to make a case for geographies which imagine our plural, European spatial connections, which connect different parts of the continent and which encourage the re-examination and renegotiation of ideas across East and West in the post-Cold War world. In these ways, the paper borrows from postcolonial frameworks and the ongoing reassessment of area studies to call for studies of Eastern and Western Europe which reinvigorate our "sense of Europe". 相似文献
16.
中国大城市保障房居民情绪幸福感影响因素 ——以广州市为例 总被引：1，自引：0，他引：1
采用在广州市13个保障房社区收集的一手数据,运用多元线性回归模型和中介效应分析技术,分析了保障房社区居民情绪幸福感影响因素。结果表明：社区建成环境（住房条件、社区建设）和社区社会环境（社区社会网络和社区凝聚力）与情绪幸福感水平显著相关,但没有证据表明社区内的保障房比重与情绪幸福感相关。此外,居民的人口与社会经济特征与其情绪幸福感显著相关。身体健康水平与情绪幸福感水平显著相关,且对于婚姻状况和住房条件与情绪幸福感的关系而言起到中介效应。因此,保障房的规划和建设要兼顾社会环境建设和物质环境建设,以提升保障房社区居民的幸福感和生活体验。 相似文献
17.
As citizens take on expanded roles in gathering and reporting environmental data, their potential impact may relate to organizational traits. This study sought to understand the relationship through a survey that identified traits and impacts of U.S. volunteer water monitoring programs on natural resource policy and management. A multiple regression model tested the influence of nine traits on an index of impact, addressing eight a priori hypotheses related to natural resource management outcomes. Seven traits were significantly related to impacts. Significant positive relationships included: the objective to address an environmental crisis; an EPA and/or state-approved quality assurance plan; support of external decision makers who may use or benefit from data; larger budget; volunteers playing more roles in the research process. Fewer impacts were expected from programs operating within schools. Understanding these relationships can help guide citizen science programs or other types of citizen engagement efforts. 相似文献
18.
Interconnected river system networks is a national water conservancy strategy in China and focus of research. Here we discuss the classification system, material and energy exchange between rivers and lakes, various dynamic flows and ecological functions of river-lake interconnected relationships. We then propose a novel method for the health assessment of river systems based on interconnected water system networks. In a healthy river system there is “material and energy exchange” and it is the first and foremost relationship of material and energy exchange between rivers and lakes. There are unobstructed various “flows” between rivers and lakes including material flows (water, dissolved substances, sediments, organisms and contaminants), energy flows (water levels, flow and flow velocity), information flows (information generated with water flows, organisms and human activities) and value flows (shipping, power generation, drinking and irrigation). Under the influences of nature and human activity, various flows are connected by river-lake interconnection to carry material and energy exchange between rivers and lakes to achieve river-lake interactions. The material and energy exchange between rivers and lakes become one of the approaches and the direct driving forces of changes in river-lake interconnected relationships. The benignant changes in river-lake interconnected relationship tend to be in relatively steady state and in ideal dynamic balance. 相似文献
19.
Sarah de Vries 《The Australian geographer》2020,51(3):399-419
ABSTRACT There is growing recognition of the importance of local governance, for both self-determination and the quality of decision-making. While many authors acknowledge the potential of local governments in providing opportunities for democratic engagement, there is the need for more research into the conditions under which this takes place. The objective of this research is to investigate why, or under what circumstances, local governments enhance participation in and deliberation about major projects in Australia. It does so by analysing two case studies where local governments were highly engaged in advocacy with their communities against large development projects; the East West Link tunnel in Melbourne and the Coal Seam Gas projects of Northern NSW. It finds local governments engaged in these projects due to institutional culture, practices and values, formed after demographic changes in the 1960s and 70s, and associated changes in the place-attachment qualities of residents and the nature and content of their social capital. Through historical instances of community mobilisation, these values became embedded in local governments, enabling them to respond pro-actively to subsequent threats. 相似文献
20.
Fragmented water governance arrangements complicate sustainable water management in the western U.S. where local water management organizations (LWMOs), including municipalities and irrigation groups, directly manage water conveyance systems. LWMOs make critical decisions that determine water delivery and management, but have traditionally not collaborated with one another. Our research examines the ways in which LWMOs are increasingly interconnected within a context of widespread urbanization. We draw on three years of qualitative research on LWMOs in Utah, including interviews and in-depth qualitative case studies, to analyze the conditions under which collaborations between LWMOs emerge, or have not yet occurred. Our findings indicate that historically fragmented LWMOs are engaging in cooperative efforts based on their extensive water infrastructure connections. LWMOs did not transform cooperative efforts into collaborations unless such a collaboration protected internal interests. LWMOs engaged in collaborations primarily to reduce their liabilities in the instance of infrastructure failure. 相似文献