在校大学生旅游行为研究

在校大学生是旅游客源的一个重要细分市场，具有很大的开发潜力。在校大学生的知识结构、价值取向、心理特征使大学生旅游市场有别于传统的大众旅游市场。本文运用文献综述、问卷调查的方法，以云南部分在校大学生为研究对象，分析他们旅游消费状况、选择出游方式、出游时段、目的地等方面的行为特征，总结出大学生出游在旅游动机、文化水平、闲暇时间、消费结构四个方面的优势；同时从政府及相关职能部门、旅游企业、社会环境、旅游者角度分析了开拓大学生旅游市场的限制性因素，提出开发大学生旅游市场的建议。     

Triassic palynostratigraphy and palynofloral provinces: evidence from southern Xizang (Tibet), China

Peng, J., Li, J., Slater, S.M., Li, W., Zhu, H. & Vajda, V. October 2017. Triassic palynostratigraphy and palynofloral provinces: evidence from southern Xizang (Tibet), China. Alcheringa 42, 67–86. ISSN 0311-5518.

Palynological analysis was carried out on Middle to Upper Triassic strata from Tulong, Nyalam County, southern Xizang (Tibet), China. Well-preserved miospore (pollen and spore) assemblages and sparse acritarch occurrences were identified. We recognized four formal and one informal biozones based on stratigraphically important taxa and compositional changes through the succession, in ascending order: the Triplexisporites Interval Zone (Anisian), the Staurosaccites quadrifidus Taxon-range Zone (upper Anisian to lower Norian), the Striatella Interval Zone (lower Norian), the Craterisporites rotundus Taxon-range Zone (middle to upper Norian) and the informal ‘Dictyophyllidites harrisii zone’ (Rhaetian). The zonation was supported by marine fossils (e.g., ammonoids and conodonts), and compositional similarity between the zones was examined using non-metric multidimensional scaling (NMDS). Correlation with other representative palynological sequences across Gondwana was also conducted. The presence of miospore taxa not previously recovered from the Late Triassic North and South China palynofloral provinces (e.g., Ashmoripollis reducta, Craterisporites rotundus, Enzonalasporites vigens, Minutosaccus crenulatus, Samaropollenites speciosus and Staurosaccites quadrifidus) calls for a new province in southwestern China, i.e., the Southern Xizang Province. It is proposed here that the modern expression of the northern boundary runs along the Yarlung Zangbo Suture, the remnant of the Tethys that separated the Indian Plate (southern Xizang) and the Lhasa Block during the Late Triassic. This new palynofloral province comprises typical elements of the Onslow Microflora, indicating the need for an extension of this microflora in southern Xizang, China.

Jungang Peng [jgpeng@nigpas.ac.cn], Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China, University of Chinese Academy of Sciences, Beijing 100049, China, Department of Palaeobiology, Swedish Museum of Natural History, Stockholm 104 05, Sweden; Jianguo Li* [jgli@nigpas.ac.cn], Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China; Wenben Li [wenbenli@126.com], Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China; Sam M. Slater [sam.slater@nrm.se], Vivi Vajda [vivi.vajda@nrm.se], Department of Palaeobiology, Swedish Museum of Natural History, Stockholm 104 05, Sweden; Huaicheng Zhu [hczhu@nigpas.ac.cn], State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.     

云南个旧黑玛井发现的东汉铜博具

在云南个旧黑玛井古墓群采集的方形铜案应该是东汉时期的博具,该博具明显是当地受汉文化影响产生的.     

PPT战略与背包旅游--以滇西北为例

贫困问题是世界性的难题。云南省作为我国旅游资源最为丰富的省份之一,同时也是全国贫困县最多的省份,其贫困地区的分布与旅游资源的分布基本一致,是中国旅游资源丰富与经济极度贫困对照鲜明的代表性地区。笔者根据在滇西北高原上逾期一个月的背包和徒步旅游的实地调研,以虎跳峡徒步旅游路线为案例,指出通过背包旅游对贫困地区进行开发,实施PPT战略,是适合贫困人口发展与创建和谐社区的必然选择。