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网络团购已经逐渐发展成为一种新兴的电子商务模式,团购产品的覆盖范围也已非常广泛.揭示了民族地区旅行社电子商务发展与网络团购的内在相关性和作用机理,并探讨了适合民族地区旅行社电子商务发展的网络团购模式,提出了发展民族地区旅行社电子商务的思路与对策. 相似文献
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《资源开发与市场》2015,(12)
以流空间为视角,以旅游景区分布为基础,借助Arc GIS分析黑龙江省城市旅游网络空间结构和节点等级体系。结果表明:1受高、中、低强度旅游流影响,城市旅游网络空间结构的演变为"T字形→三角形→倒梯形→多边形"结构,由中心向边缘拓展进而覆盖所有区域;区域内东南部网络密集、西北部稀疏;旅游流强度整体偏弱。2高等级城市和资源型城市网络涉及面最广、指向性最强。哈尔滨、牡丹江、大庆、伊春、齐齐哈尔作为网络的端点与控制性节点,占有支配地位。3城市旅游网络节点表现为四个层级:区域旅游网络联系的中心、次中心,地方旅游网络联系的中心、一般节点。4区位交通条件、旅游资源禀赋、社会经济发展,制度创新导向四大因素共同推动黑龙江省城市旅游网络的发展与演变。 相似文献
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《资源开发与市场》2016,(10)
随着电子产品的广泛普及和网络技术的快速发展,旅游行为足迹通过各种形式上传至网上已成为一种时尚,游客上传分享的网络游记为研究游客时空行为提供了大量的开放数据资源,而这些数据资源为区域旅游的时空行为研究提供了参考。利用"火车头采集器",收集了外地游客在2013年1月—2015年9月游览兰州市后在"马蜂窝"网站记录下的440篇游记作为论文的基础数据,综合应用社会网络分析方法,对兰州市外地游客旅游流的时空行为特征进行了研究。结果表明,游客滞留时间短,流量"季相"变化明显,旅游热点区域高度集中,游客移动轨迹表现出显著的"轴线—散点"特征。这与兰州市旅游网络结构密切相关:知名度较高的旅游节点占据整个网络的中心位置,中心性高,集聚和辐射能力很强,对其他景点的到访次数影响力较大,并形成了7个小子群,子群内部连接度高,而子群间的联系不紧密,旅游流网络密度低,整体旅游线路较少。因此,旅游流表现出高度的空间偏聚性,"核心—边缘"结构特征明显。 相似文献
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旅游流和当地旅游经济发展有着重要的联系。旅游流量对增强旅游经济联系强度有极大的促进作用,而旅游经济强度增强又会带来更多的旅游转移流量。以北京入境旅游流向丝绸之路沿线省区转移为例,利用SPSS16.0统计分析软件,分析了1998—2007年北京入境旅游流向丝绸之路沿线省区转移规模和旅游经济联系强度之间的关系。结果表明,北京入境旅游流向陕西转移流量最大,其次为新疆,甘肃最小;转移客流量和旅游经济联系强度存在强相关关系;北京转移入境旅游流对丝绸之路各省旅游经济发展有促进作用,并为跨区域旅游合作研究提供理论参考。 相似文献
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Trametes versicolor decolorized 2000 mg L(-1) of the mono-azo substituted naphthalenic dye Amaranth with no dye sorption observed visually. The changes in the toxicity were assessed over a period of 30 d for the dye-treated viable culture, control (no dye added), and a boiled culture treated with dye, using the Microtox Acute Toxicity assay. Before dye addition, the culture filtrate had some toxicity, which increased after the dye addition. The toxicity of the dye-treated culture decreased during the treatment. The loss of toxicity occurred at the same time, with the loss of color suggesting that detoxification is associated with decoloration. The change in pH was due to natural metabolic processes and had a small effect on detoxification. Because the toxicity of the treatment was similar to that of the control at the end of the treatment, the effluent seems to be safe for release into the environment, potentially rendering this treatment suitable for industrial application. 相似文献
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城镇化是推动我国经济社会发展的重要动力,在高速发展的同时,带来大量污染排放,威胁乡村环境质量与可持续发展。在对乡村生态环境问题剖析的基础上,从战略、实施、方式等层面探索解决思路,围绕科学规划、发展方式、基础建设、管理机制、宣传教育等方面分析关键点,加强乡村环境保护,保障城镇化建设健康发展,为促进农村农业持续发展提供持久动力。 相似文献
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泵站树状给水管网流量具有随机性,而这种随机性变化会直接影响管网的建设费用和动力费用.针对这-特点,应用随机规划原理,建立泵站树状给水管网机会约束模型,编写基于随机模拟的遗传算法程序求解该模型.机会约束模型能较客观地反映该管网的实际工况,使优化设计结果更符合实际. 相似文献
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阐释了信息产业专门化街区的内涵,结合对合肥市黄山路信息产业专门化街区构成要素的分类及其邻近度的分析,分别从空间结构演化、景观演化、功能演化三方面阐述了合肥市黄山路由"电子一条街"向"信息产业专门化街区"的总体演化阶段,探讨了信息产业专门化街区的未来发展趋势。 相似文献
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Günay Kocasoy 《Environmental management》1989,13(4):469-475
The increase in the number of tourists visiting a coast is desired by most of the countries for economic reasons. However, this increase in tourism may cause pollution of the sea. This can be only avoided by proper planning and by predicting the carrying capacity of the coast in terms of sea pollution. This is especially important for developing countries where part of the wastewater is discharged without any treatment into the sea.In the present study the beaches were classified according to their use — and consequently the amount of waste discharged into the sea — into four groups: (1) coasts that are used only for swimming and recreational purposes; (2) coasts used simultaneously for dwelling, swimming, and recreational purposes; (3) coasts along which only dwellings exist; and (4) natural and man-made harbors, i.e., coasts used as shelters. During the survey,40,320 observations were made between December 1985 and February 1988 to determine the effect of the number of tourists on seawater quality. The results obtained were analyzed by a multilinear regression program to obtain an empirical equation giving the extent of the sea pollution in terms of coliform concentration as a function of population density and some other environmental factors.The equations derived in this study enable the determination of the carrying capacity of a beach in terms of pollution as well as the expected degree of pollution corresponding to a given population density. Furthermore, it allows the prediction of the extra carrying capacity that can be obtained by improving the waste-disposal conditions. 相似文献
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