首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   123篇
  免费   0篇
财政金融   1篇
计划管理   3篇
经济学   6篇
运输经济   15篇
旅游经济   40篇
贸易经济   19篇
农业经济   31篇
经济概况   8篇
  2024年   1篇
  2023年   1篇
  2021年   6篇
  2020年   17篇
  2019年   4篇
  2018年   1篇
  2017年   1篇
  2016年   9篇
  2014年   7篇
  2013年   29篇
  2012年   8篇
  2011年   2篇
  2010年   2篇
  2009年   2篇
  2008年   2篇
  2007年   8篇
  2006年   1篇
  2005年   3篇
  2004年   3篇
  2003年   2篇
  2002年   2篇
  2001年   1篇
  2000年   3篇
  1999年   3篇
  1998年   1篇
  1996年   2篇
  1988年   1篇
  1985年   1篇
排序方式: 共有123条查询结果,搜索用时 156 毫秒
41.
Agri-environment schemes (AES) favouring the maintenance of hedges were implemented in the Camargue (southern France) as it has previously been proven to reduce the risk of damage caused by Greater Flamingo incursions into rice fields. Given the persistent incursions, we estimated the economic cost of damage from 2007 to 2009, the uptake rate of hedge-related AES and explored the limits of these schemes as a mitigation effort. Semi-structured and key informant interviews, site mapping and field visits were made to verify claims and estimate damage. Number of plants/m2 and fertile stems/plant were estimated on 1,498 and 312 grids, respectively, spread over 26 rice fields. Damaged areas of rice fields forayed by flamingos presented from 1.35 to 3.06 t/ha lower yield than undamaged areas. We estimated 228€/ha average loss in forayed fields for a total of 400,000€ in yield loss in 2008. Administrative constraints limited AES and free seedlings distribution, preventing the problem from being addressed at an appropriate scale. The trivial financial support for hedge management relative to more lucrative AES with lower constraints resulted in low uptake rate. We propose that modifications of AES take into account landscape factors over administrative boundaries and that the financial support for AES be scaled up relative to other subsidies in order to address the efforts necessary to achieve landscape changes to reduce human–wildlife conflict.  相似文献   
42.
Abstract

This paper builds upon the multiple satisfaction approach to game management by evaluating the individual and combined effects of three basic dimensions—wildlife, human interaction, and nature/sport—on overall hunting satisfaction. In contrast to previous studies that focused on either hunting in general or deer hunting, this analysis was based on hunter evaluations of a specific waterfowl hunting trip. Results generally support the concept of multiple satisfactions, with a combination of wildlife, human interaction, and nature/sport variables accounting for 36% of the variance in satisfaction. Taken individually, nature/sport items explained more of the variation in satisfaction (R2 = .23) than either the wildlife (R2 = .08) or the human interaction variables (R2 = .14). Some discrepancies were noted between the findings presented here and those reported in previous investigations. For example, contrary to several earlier studies that found success to be an important determinant of satisfaction, the zero‐order correlation between the number of birds bagged by the respondent and overall satisfaction was not significant. Such discrepancies with previous research are attributed to the hunters’ prior experience in the setting, their expectations for success, and the population and setting under investigation.  相似文献   
43.
王田浩  于希容 《价值工程》2013,(26):300-301
本文就我国野生动植物的利用现状及目前存在的一系列问题进行了仔细的分析,并针对当前存在的问题提出自己的看法。  相似文献   
44.
Although grey seals are relatively common in Britain, their numbers elsewhere are believed to be decreasing, and some populations in Europe are listed as endangered by the IUCN. This case study focuses on the impacts of seal tourism on a colony of seals on the South Devon coast in the United Kingdom, the effectiveness of current management policies and tourists’ perceptions of the voluntary controls adhered to by tour operators. To monitor impacts, covert observations of the site were undertaken on 60 designated survey days in the summer of 2006, while a survey of tourists taking part in wildlife cruises to the site was conducted during the same period. The observations found that the voluntary codes had reduced disturbance from operators; however, there were still disturbances, mainly from private vessels. The results of the survey showed that tourists were aware of their potential impacts upon the wildlife, and were generally supportive of the voluntary codes in place. Therefore if an honest explanation and interpretation of the potential impacts of seal tourism are provided, it may encourage a protectionist predisposition in wildlife tourists and render the compliance of voluntary codes a highly satisfactory tourist experience rather than a negative one.  相似文献   
45.
Websites designed to promote risky activities provide a novel context for studying the role of emotional appeals and message sensation value (MSV) in risk messages in order to ultimately understand the type of messages that motivate people to engage in risk behaviors. Framed in theories of message design and emotion, this study investigates representations of threat, efficacy, and the extent to which risk messages appeal to a range of positive and negative emotions through the examination of 53 shark diving websites using content analysis and computer generated linguistic analysis. Results indicate that few websites provide explicit threat information (i.e. severity and susceptibility) but many do present implicit threats. Efficacy-related messages were present on all websites. Positive emotion was more common than negative emotion and there is little representation of the traditional components of MSV. Implications for theory development and communication about risk-seeking are addressed.  相似文献   
46.
何玥 《科技和产业》2024,24(9):59-64
随着文旅行业持续发展,网络评论文本成为影响大众选择出游景点的重要因素。采用文本分析方法对携程网中成都大熊猫繁育研究基地的旅游者评论文本进行研究。使用ROST ContentMining6和UCINET 6软件,对旅游者网络评论进行语义网络分析、中心性分析与情感分析。研究发现:社会语义网络分析“熊猫”“花花”构成一级核心高频词,“排队”“可爱”“成都”为二级核心词汇,且与一级词汇互相关联;旅游者积极情绪占比达75.15%,中性情绪占比为12.13%,消极情绪为12.72%。  相似文献   
47.
Increasing numbers of retirees seek individual, extended, unstructured activities in remote, non-commercial locations. Travel is predominantly by self-drive 4WD vehicle towing a caravan/campervan. These ‘grey nomads’ often prefer remote bush camping sites/caravan parks to commercial resorts. The tropics – a popular destination – are inhabited by Australia's only large semi-terrestrial carnivore, the estuarine crocodile Crocodylus porosus. Conservation programmes of recent decades have resulted in a substantial increase in numbers. With naive grey nomads increasingly encroaching on crocodile territory, attacks are expected to increase. Review of conservation programmes to incorporate awareness education targeting grey nomads is therefore required.  相似文献   
48.
Studies exploring the impact of environmental interpretation on visitors’ conservation knowledge, attitudes and behaviour often measure impacts as visitors exit tourism sites. For ease of measurement, their intentions are often used as indicators of behaviour change. Recent longitudinal studies suggest that intentions may be poor indicators of long-term behaviour change. This study examines both the behavioural intentions and the long-term conservation behaviour of 100 Australian families participating in a wildlife viewing experience. Respondents who reported being negatively or positively emotionally involved in the experience were more likely to indicate an intention to change their behaviour. New ideas about animals and their habitats were also significantly correlated with the development of positive behavioural intentions. Three months later, for 10 of the 13 conservation behaviours explored, the majority of respondents who intended to increase their participation did not. Implications for using intentions as an indicator of programme effectiveness are discussed. The importance of providing post-visit support that incorporates specific strategies, localised examples, petitions and activities to help visitors convert their intentions into behaviour prior to their enthusiasm waning is highlighted. Suggestions are made for more longitudinal studies in this area.  相似文献   
49.
Fueled by her first-hand experiences with caring for wildlife, and the realization that efforts at fighting crimes against wildlife have hitherto been focused mainly on the supply side of wildlife trafficking, the author makes a case for a renewed focus on both the supply and the demand sides as well as the intervening link between them that facilitates such trafficking. After an engaging introduction, she discusses each of the above three parts in detail and concludes that a strategy involving the same intense focus on each of the three parts is sorely needed to eradicate crimes against wildlife. In the process, she argues that the adoption of the “carrot” approach would be far superior to the “stick” approach in achieving long-term success, and offers specific tactics pertaining to each of the three parts as actionable recommendations.  相似文献   
50.
Using a case study of the Kimana Wildlife Sanctuary in Kenya, this paper empirically investigates factors critical to successful community-based tourism development. Factor analysis of 17 survey items produced five key factors: inclusion of stakeholders, recognition of individual and mutual benefits, appointment of legitimate convenor, formulation of aims and objectives, and perception that decisions arrived at will be implemented. Hierarchical cluster analysis demonstrates a simultaneous presence of three different segments within the local community, revealing that ‘operatives’ are interested in participation in the project's activities, ‘opinion leaders’ are concerned with the community's benefits from the project while ‘official leaders’ value the success of the project.  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