共查询到20条相似文献,搜索用时 62 毫秒
1.
经过多年旅游开发实践的驱动,我国旅游规划工作有了长足发展,但目前仍存在旅游规划模式化,忽视规划区的“地方性”,缺乏规划区的区际与区内旅游空间竞争与合作关系研究等,使规划区功能、产品、市场等定位不准,策划的项目与周边区域雷同等问题突出。在旅游规划中加强目的地竞合分析是寻求目的地特色、准确定位、优化线路、创新产品体系等的前提和重要、有效的技术手段。阐述了旅游目的地竞合分析的内容和方法,并以芜湖市为例,对芜湖市的区内和区际旅游空间竞合进行分析,提出了芜湖市旅游功能定位、战略目标与空间布局。 相似文献
2.
构建湛江、茂名、阳江3市和谐的滨海旅游竞合关系是粤西滨海旅游协同一体化高质量发展的重要内涵与实现途径。基于2012—2017年“湛茂阳”区域滨海旅游相关统计数据,构建了滨海旅游生态位测评指标体系,运用旅游生态位理论模型综合测评了“湛茂阳”区域滨海旅游生态位宽度、扩充度和重叠度,深入分析了“湛茂阳”区域滨海旅游产业综合竞争力、竞争态势与竞争程度。结果发现:①“湛茂阳”区域滨海旅游生态位宽度呈现“水平低、均衡化”的结构特征,3市滨海旅游产业综合竞争力与影响力弱,旅游综合竞争力从大到小的排序依次为湛江、茂名、阳江。②“湛茂阳”3市滨海旅游综合生态位扩充态势不明显,扩充度水平整体呈现均质化特征,局部存在一定程度的分异。③“湛茂阳”区域滨海旅游生态位重叠度高,旅游竞争激烈,旅游协同合作发展水平与效应较低。最后,从区域滨海旅游生态位的协同、错位、扩充3个视角科学提出了“湛茂阳”区域滨海旅游竞合发展策略。 相似文献
3.
烟台旅游资源的合理开发利用 总被引:4,自引:1,他引:4
烟台市地处胶东半岛的中西部,南北两面濒临大海,东接威海,西接潍坊与青岛。特殊的地理位置和悠久的历史文化造就了烟台市得天独厚的旅游资源、雄厚的经济实力和发达的社会文化事业,为旅游资源的开发创造了良好条件。近年来,烟台旅游业有了长足的发展,但在开发过程中仍存在着不少问题.主要表现在:①区域总体开发不够,旅游资源的开发集中在少数风景名胜点上。北部沿海旅游区资源优势明显,开发利用好.而南部、西部沿海旅游区和中部山地旅游区的旅游资源开发受交通、服务设施等条件限制,开发程度低,资源浪费现象严重。②旅游资源开… 相似文献
4.
5.
鄂西旅游资源的开发利用 总被引:1,自引:0,他引:1
湖北省旅游资源丰富,旅游业发展条件优越,为全省旅游业的迅速发展和崛起提供了良好的基础。从全省来看,初步形成了鄂东综合旅游区、鄂中名胜古迹旅游区、鄂西自然风光与名胜古迹旅游区雏形。从三大旅游区发展现状来看,前两个已有起色,鄂西旅游区则相对逊色;但从旅游资源来看,鄂西旅游区自然风光独占鳖头,人文景观颇具特色。因此,如何合理开发利用该区旅游资源,对迅速发展鄂西旅游业尤为重要。1旅游资源类型鄂西旅游区主要包括宜昌市、鄂西州、神农架林区、十堰市,统称为鄂西山地。本区旅游资源极为丰富,以大型、美丽和神奇为特… 相似文献
6.
7.
海南省福报农场沙河旅游区以河谷山岳型自然风光为主体格架,构成了多姿多态的景观类型。景点集中而丰富,且以其幽、秀、奇、秘、特形成与海南区域整体旅游资源结构的迥异特色,具有较高的美学价值和良好的区位条件。在开发中以“福报芒果”为拳头产品,树立本区的旅游产品形象;以经济开发为导向,采取游览、购物、经贸、度假相协调的综合开发模式,从而获得经济、环境和社会的平衡发展 相似文献
8.
9.
10.
11.
Donald L. Chery Calvin G. Clyde Roger E. Smith 《Journal of the American Water Resources Association》1979,15(4):1126-1145
ABSTRACT: Mathematical models for predicting watershed surface flow responses are available, most of which are elaborate nonlinear numerical surface and channel flow models linked with infiltration models. Such models may be used to make predictions for ungaged areas, assuming an acceptable fitting of the model to the topography and roughness of the real system. For some application purposes, these models are impractical because of their complexity and expensive computer solutions. A procedure is developed that uses a complex model of an ungaged area to derive a simpler parametric nonlinear system model for repetitious simulation with input sequences. The predicted flow outputs are obtained with the simpler model at significant savings of money and time. The procedures for constructing a complex kinematic model of a 40 acre (161,880 m2) reference watershed and deriving the simpler system model are outlined. The results of predictions from both models are compared with a selected set of measured events, all having essentially the same initial conditions. Peak discharges ranged from 3 to 118 ft3/sec (0.085 to 3.34 m3/sec), which includes the largest event of record. The inherent limitations of lumped systems models are demonstrated, including the bias caused by their inability to model infiltration losses after rainfall ceases. Computer costs and times for the models were compared. The derived simple model has a cost advantage when repeated use of a model is required. Such an applications hydrologic model has an engineering tradeoff of reduced accuracy, and lumping bias, but is more economical for certain design purposes. 相似文献
12.
A. U. Mallik 《Environmental management》1995,19(5):675-684
Fire and logging in nutrient-poor temperate forests with certain ericaceous understory plants may convert the forests into
heaths. The process of disturbance-induced heath formation is documented by using examples ofCalluna in western Europe,Kalmia in Newfoundland, andGaultheria (salal) in coastal British Columbia. In a cool, temperate climate, rapid vegetative growth ofCalluna, Kalmia, and salal following disturbance results in increasing organic accumulation (paludification), nutrient sequestration, soil
acidification, and allelochemicals. These are thought to be the main reasons to conifer regeneration failure in disturbed
habitats.
If continuation in forest is a land-use objective, then temperate forests with an ericaceous understory should not be logged
unless effective silvicultural methods are devised to control the ericaceous plants and restore forest regeneration. Preharvest
vegetation control may be considered as an option. Failure to control the understory plants may lead to a long-term vegetation
shift, from forest to heathland, particularly in nutrient-poor sites. Successful methods of controllingKalmia andGaultheria, however, have yet to be developed. While theKalmia- andGaultheria- dominated heathlands are undesirable in Canada and the Pacific Northwest, a wide range ofCalluna heathlands of western Europe are being conserved as natural and seminatural vegetation. 相似文献
13.
Pickett ST Cadenasso ML Grove JM Boone CG Groffman PM Irwin E Kaushal SS Marshall V McGrath BP Nilon CH Pouyat RV Szlavecz K Troy A Warren P 《Journal of environmental management》2011,92(3):331-362
Urban ecological studies, including focus on cities, suburbs, and exurbs, while having deep roots in the early to mid 20th century, have burgeoned in the last several decades. We use the state factor approach to highlight the role of important aspects of climate, substrate, organisms, relief, and time in differentiating urban from non-urban areas, and for determining heterogeneity within spatially extensive metropolitan areas. In addition to reviewing key findings relevant to each state factor, we note the emergence of tentative "urban syndromes" concerning soils, streams, wildlife and plants, and homogenization of certain ecosystem functions, such as soil organic carbon dynamics. We note the utility of the ecosystem approach, the human ecosystem framework, and watersheds as integrative tools to tie information about multiple state factors together. The organismal component of urban complexes includes the social organization of the human population, and we review key modes by which human populations within urban areas are differentiated, and how such differentiation affects environmentally relevant actions. Emerging syntheses in land change science and ecological urban design are also summarized. The multifaceted frameworks and the growing urban knowledge base do however identify some pressing research needs. 相似文献
14.
Justin D. Burdine 《Local Environment》2018,23(2):198-219
Urban gardens are important sources of sustenance for communities with limited access to food. Hence, this study focuses on food production in gardens in the Toledo metropolitan area in Northwest Ohio. We administered surveys to 150 garden managers from November 2014 to February 2015 in our attempt to better understand how neighbourhood racial composition and poverty levels are related to staffing and voluntarism, food production and distribution, the development of infrastructure, and the adoption of sustainability practices in urban gardens. The results from 30 gardens are presented in this paper. We used Geographic Information Systems to map the gardens and overlay the map with 2010 census data so that we could conduct demographic analyses of the neighbourhoods in which the gardens were located. Though the gardens were small – two acres or less – up to 46 varieties of food were grown in a single garden. Gardens also operated on small budgets. Food from the gardens was gifted or shared with friends, family, and neighbourhood residents. Gardens in predominantly minority neighbourhoods tended to have fewer institutional partners, less garden infrastructure, and had adopted fewer sustainable practices than gardens in predominantly White neighbourhoods. Nonetheless, residents of predominantly minority and high-poverty neighbourhoods participated in garden activities and influenced garden operations. Volunteering and staffing were racialised and gendered. 相似文献
15.
Collisions with deer and other large animals are increasing, and the resulting economic costs and risks to public safety have made mitigation measures a priority for both city and wildlife managers. We created landscape models to describe and predict deer-vehicle collision (DVCs) within the City of Edmonton, Alberta. Models based on roadside characteristics revealed that DVCs occurred frequently where roadside vegetation was both denser and more diverse, and that DVCs were more likely to occur when the groomed width of roadside right-of-ways was smaller. No DVCs occurred where the width of the vegetation-free or manicured roadside buffer was greater than 40 m. Landscape-based models showed that DVCs were more likely in more heterogeneous landscapes where road densities were lower and speed limits were higher, and where non-forested vegetation such as farmland was in closer proximity to larger tracts of forest. These models can help wildlife and transportation managers to identify locations of high collision frequency for mitigation. Modifying certain landscape and roadside habitats can be an effective way to reduce deer-vehicle collisions. 相似文献
16.
Carl J. Sindermann 《Journal of the American Water Resources Association》1988,24(5):931-939
ABSTRACT: Sustained interest in and concern about the health status of the aquatic environment has resulted in extensive research focused on (1) effects of pollution on survival, growth, and reproduction of resource species at all life stages; (2) diseases of fish and shellfish, as they may be related to pollution and as they may serve as indicators of environmental stress; and (3) contaminant body burdens in fish and shellfish - their effects on the aquatic animals and their potential effects on humans. Effects, lethal and sublethal, of pollutants on life history stages of fish and shellfish have been documented, as have impacts on local stocks in badly degraded habitats, but as yet there has been no adequate quantitative demonstration of effects on entire aquatic species - probably because of the difficulty in sorting out relative effects of the many environmental factors that influence abundance. Sublethal effects, especially those that result in disease, have been examined intensively, and some diseases and disease syndromes have been associated statistically with pollution. Other pollution indicators (biochemical, physiological, genetic, behavioral, and ecological) have also received some attention, as have body burdens of contaminants in aquatic species. Research, especially that conducted during the past decade, has done much to clarify the many pathways and toxic effects of contaminants on aquatic animals, and has also helped to identify mechanisms for survival of fish and shellfish in the presence of environmental changes caused by human activities. 相似文献
17.
Kathryn Paxton George 《Journal of Agricultural and Environmental Ethics》1988,1(3):175-192
The maintenance of biodiversity is urged from many quarters and on grounds ranging from aesthetic considerations to its usefulness, particularly for biotechnology. But regardless of the grounds for preserving biodiversity, writers are generally in agreement that it should be preserved. But, in examining the various references biodiversity, such as species diversity, genetic diversity, and habitat diversity, it is apparent that we cannot aim to preserve biodiversityas such, since there are a number of conflicts in any such undertaking. In preserving one aspect of biodiversity, we damage another aspect. Five arguments which attempt to ground our moral concern for biodiversity are reviewed and critiqued, not only for their consistency but also for their power to move us to action. The final section of the paper shows how conflicts in the values of personal and environmental health can impair ethical action and especially policy formation.An earlier version of this paper was read at the conference on Agriculture, Food, and Human Values: Tradition and Change, Orlando, Florida, October 7–9, 1987. 相似文献
18.
All major journalism ethical codes explicitly state that journalists should protect editorial copy from undue influence by
outside sources. However, much of the previous research on agricultural information has concentrated on what information various
media communicate (gatekeeping studies) or communication's role in increasing innovation adoption (diffusion studies). Few
studies have concentrated specifically on organizational and structural constraints that might adversely affect agricultural
journalists' ethical standards; those that have, focus largely on farm magazines. A study of newspaper reporters who cover
agricultural news found that the most pressing ethical concern is the effect of advertiser (agri-business) pressure on editorial
copy, and that their concerns in general parallel those of farm magazine writers and editors. The majority reported being
in situations in which they might be exposed to advertiser pressure, including pressures to change or withhold editorial copy.
Large minorities suggested that advertising pressures affect the overall environment in which agricultural journalists work,
and more than one in ten said they allow advertiser pressures to influence editorial decisions. The newspaper reporters who
cover agricultural beats showed slightly more resistance to advertiser pressure than did farm magazine editors in a parallel
study. 相似文献
19.
Mapped environmental classifications are defined using various procedures, but there has been little evaluation of the differences
in their ability to discriminate variation in independent ecological characteristics. We tested the performance of environmental
classifications of the streams and rivers of France that had been defined from the same environmental data using geographic
regionalization and numerical classification of individual river valley segments. Test data comprised invertebrate assemblages,
water chemistry, and hydrological indexes obtained from sites throughout France. Classification performance was measured by
analysis of similarity (ANOSIM). Geometric regions defined by a regular grid and without regard to environmental variables
and a posteriori classifications based on clustering the test datasets defined lower and upper bounds of performance for a
given number of classes. Differences in classification performances were generally small. The ANOSIM statistics for the a
posteriori classifications were around twice that of all environmental classifications, including geometrically defined regions.
The hydro-ecoregions performed slightly better for the invertebrate data and the network classification performed slightly
better for the chemistry and hydrological data. Our results indicate that environmental classifications that are defined using
different procedures can be comparable in terms of their ability to discriminate variation of ecological characteristics and
that alleged differences in performance arising from different classification procedures can be small relative to unexplained
variation. We conclude that definition procedures might have little effect on the performance of large-scale environmental
classifications and decisions over which procedures to use should be based primarily on pragmatic considerations. 相似文献
20.
Donald M. Bruce 《Journal of Agricultural and Environmental Ethics》2002,15(3):279-289
Future technological developmentsconcerning food, agriculture, and theenvironment face a gulf of social legitimationfrom a skeptical public and media, in the wakeof the crises of BSE, GM food, and foot andmouth disease in the UK (House of Lords, 2000). Keyethical issues were ignored by the bioindustry,regulators, and the Government, leaving alegacy of distrust. The paper examinesagricultural biotechnology in terms of a socialcontract, whose conditions would have to be fulfilled togain acceptance of novel applications. Variouscurrent and future GM applications areevaluated against these conditions. Successwould depend critically on how far a sharedvision can be found with the public. Tore-establish trust, significant changes areidentified in the planning and pursuit ofbiotechnology. 相似文献